Chad M. Risko, Ph.D. - Publications

Affiliations: 
Georgia Institute of Technology, Atlanta, GA 

137 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Le VN, Bombile JH, Rupasinghe GS, Baustert KN, Li R, Maria IP, Shahi M, Alarcon Espejo P, McCulloch I, Graham KR, Risko C, Paterson AF. New Chemical Dopant and Counterion Mechanism for Organic Electrochemical Transistors and Organic Mixed Ionic-Electronic Conductors. Advanced Science (Weinheim, Baden-Wurttemberg, Germany). e2207694. PMID 37466175 DOI: 10.1002/advs.202207694  0.333
2023 Costello AM, Duke R, Sorensen S, Kothalawala NL, Ogbaje M, Sarkar N, Kim DY, Risko C, Parkin SR, Huckaba AJ. Hydrogen-Bonding Trends in a Bithiophene with 3- and/or 4-Pyridyl Substituents. Acs Omega. 8: 24485-24494. PMID 37457451 DOI: 10.1021/acsomega.3c02423  0.383
2022 Huang LY, Ai Q, Risko C. The role of crystal packing on the optical response of trialkyltetrelethynyl acenes. The Journal of Chemical Physics. 157: 084703. PMID 36049997 DOI: 10.1063/5.0097421  0.338
2021 Elliott CF, Fraser KE, Odom SA, Risko C. Steric Manipulation as a Mechanism for Tuning the Reduction and Oxidation Potentials of Phenothiazines. The Journal of Physical Chemistry. A. PMID 33398992 DOI: 10.1021/acs.jpca.0c09801  0.348
2020 Li S, Pokuri BSS, Ryno S, Nkansah A, De'vine C, Ganapathysubramanian B, Risko C. Determination of the Free Energies of Mixing of Organic Solutions through a Combined Molecular Dynamics and Bayesian Statistics Approach. Journal of Chemical Information and Modeling. PMID 31935097 DOI: 10.1021/Acs.Jcim.9B01113  0.329
2020 Gao G, Chen M, Roberts J, Feng M, Xiao C, Zhang G, Parkin S, Risko C, Zhang L. Rational Functionalization of a C70 Buckybowl to Enable a C70:Buckybowl Co-crystal for Organic Semiconductor Applications. Journal of the American Chemical Society. PMID 31896253 DOI: 10.1021/Jacs.9B12192  0.401
2020 Andrés Castán JM, Abad Galán L, Li S, Dalinot C, Simón Marqués P, Allain M, Risko C, Monnereau C, Maury O, Blanchard P, Cabanetos C. Nitration of benzothioxanthene: towards a new class of dyes with versatile photophysical properties New Journal of Chemistry. 44: 900-905. DOI: 10.1039/C9Nj05804D  0.387
2020 Onyango EO, Mannes PZ, Pletnev A, Granger DB, Ai Q, Risko C, Anthony JE, Gribble GW. Synthesis and electronic properties of a linearly fused anthracene dimer Tetrahedron Letters. 61: 152182. DOI: 10.1016/J.Tetlet.2020.152182  0.375
2019 Petty AJ, Ai Q, Sorli JC, Haneef HF, Purdum GE, Boehm A, Granger DB, Gu K, Rubinger CPL, Parkin SR, Graham KR, Jurchescu OD, Loo YL, Risko C, Anthony JE. Computationally aided design of a high-performance organic semiconductor: the development of a universal crystal engineering core. Chemical Science. 10: 10543-10549. PMID 32055377 DOI: 10.1039/C9Sc02930C  0.381
2019 Fallon KJ, Budden P, Salvadori E, Ganose AM, Savory CN, Eyre L, Dowland S, Ai Q, Goodlett S, Risko C, Scanlon DO, Kay CWM, Rao A, Friend RH, Musser AJ, et al. Exploiting excited-state aromaticity to design highly stable singlet fission materials. Journal of the American Chemical Society. PMID 31381323 DOI: 10.1021/Jacs.9B06346  0.361
2019 Lv L, Roberts J, Xiao C, Jia Z, Jiang W, Zhang G, Risko C, Zhang L. Triperyleno[3,3,3]propellane triimides: achieving a new generation of quasi- symmetric nanostructures in organic electronics. Chemical Science. 10: 4951-4958. PMID 31183043 DOI: 10.1039/C9Sc00849G  0.432
2019 Cheema H, Baumann A, Loya EK, Brogdon P, McNamara LE, Carpenter C, Hammer NI, Mathew S, Risko C, Delcamp JH. A NIR Absorbing Indolizine-Porphyrin Push-Pull Dye for Dye-Sensitized Solar Cells. Acs Applied Materials & Interfaces. PMID 30964274 DOI: 10.1021/Acsami.8B21414  0.41
2019 Chaudhry S, Ryno SM, Zeller M, McMillin DR, Risko C, Mei J. Oxidation Pathways Involving a Sulfide Endcapped Donor-Acceptor-Donor π-Conjugated Molecule and Antimony(V) Chloride. The Journal of Physical Chemistry. B. PMID 30950613 DOI: 10.1021/Acs.Jpcb.9B01389  0.33
2019 Ryno SM, Risko C. Deconstructing the behavior of donor-acceptor copolymers in solution & the melt: the case of PTB7. Physical Chemistry Chemical Physics. 21: 7802-7813. PMID 30931448 DOI: 10.1039/C9Cp00777F  0.43
2019 Purdum GE, Chen X, Telesz N, Ryno SM, Sengar N, Gessner T, Risko C, Clancy P, Weitz RT, Loo YL. Solvent–Molecule Interactions Govern Crystal-Habit Selection in Naphthalene Tetracarboxylic Diimides Chemistry of Materials. 31: 9691-9698. DOI: 10.1021/Acs.Chemmater.9B03142  0.326
2019 Kharandiuk T, Hussien EJ, Cameron J, Petrina R, Findlay NJ, Naumov R, Klooster WT, Coles SJ, Ai Q, Goodlett S, Risko C, Skabara PJ. Noncovalent Close Contacts in Fluorinated Thiophene–Phenylene–ThiopheneConjugated Units: Understanding the Nature and Dominance of O···Hversus S···F and O···F Interactionswith Respect to the Control of Polymer Conformation Chemistry of Materials. 31: 7070-7079. DOI: 10.1021/Acs.Chemmater.9B01886  0.405
2019 Zeidell AM, Jennings L, Frederickson CK, Ai Q, Dressler JJ, Zakharov LN, Risko C, Haley MM, Jurchescu OD. Organic Semiconductors Derived from Dinaphtho-Fused s-Indacenes: How Molecular Structure and Film Morphology Influence Thin-Film Transistor Performance Chemistry of Materials. 31: 6962-6970. DOI: 10.1021/Acs.Chemmater.9B01436  0.438
2019 Burnett EK, Ai Q, Cherniawski BP, Parkin SR, Risko C, Briseno AL. Even–Odd Alkyl Chain-Length Alternation Regulates Oligothiophene Crystal Structure Chemistry of Materials. 31: 6900-6907. DOI: 10.1021/Acs.Chemmater.9B01317  0.352
2019 Sorli JC, Ai Q, Granger DB, Gu K, Parkin S, Jarolimek K, Telesz N, Anthony JE, Risko C, Loo Y. Impact of Atomistic Substitution on Thin-Film Structure and Charge Transport in a Germanyl-ethynyl Functionalized Pentacene Chemistry of Materials. 31: 6615-6623. DOI: 10.1021/Acs.Chemmater.9B00546  0.402
2019 Li H, Hong M, Scarpaci A, He X, Risko C, Sears JS, Barlow S, Winget P, Marder SR, Kim D, Brédas J. Chemical Stabilities of the Lowest Triplet State in Aryl Sulfones and Aryl Phosphine Oxides Relevant to OLED Applications Chemistry of Materials. 31: 1507-1519. DOI: 10.1021/Acs.Chemmater.8B04235  0.717
2019 Zhang S, Moudgil K, Jucov E, Risko C, Timofeeva TV, Marder SR, Barlow S. Organometallic hydride-transfer agents as reductants for organic semiconductor molecules Inorganica Chimica Acta. 489: 67-77. DOI: 10.1016/J.Ica.2019.02.003  0.365
2018 Purdum GE, Telesz NG, Jarolimek K, Ryno SM, Gessner T, Davy NC, Petty Ii A, Zhen Y, Shu Y, Facchetti A, Collis GE, Hu W, Wu C, Anthony JE, Weitz RT, ... Risko C, et al. The presence of short intermolecular contacts screens for kinetic stability in packing polymorphs. Journal of the American Chemical Society. PMID 29793338 DOI: 10.1021/Jacs.8B01421  0.303
2018 Lopes TO, Machado DFS, Risko C, Brédas JL, de Oliveira HCB. Bond Ellipticity Alternation: An Accurate Descriptor of the Nonlinear Optical Properties of π-Conjugated Chromophores. The Journal of Physical Chemistry Letters. 1377-1383. PMID 29498530 DOI: 10.1021/Acs.Jpclett.8B00478  0.567
2018 Li S, Ryno SM, Risko C. Exploring Thermal Transitions in Anthradithiophene-based Organic Semiconductors to Reveal Structure-Packing Relationships Journal of Materials Chemistry C. 6: 10924-10934. DOI: 10.1039/C8Tc03976C  0.369
2018 Josse P, Li S, Dayneko S, Joly D, Labrunie A, Dabos-Seignon S, Allain M, Siegler B, Demadrille R, Welch GC, Risko C, Blanchard P, Cabanetos C. Bromination of the benzothioxanthene Bloc: toward new π-conjugated systems for organic electronic applications Journal of Materials Chemistry C. 6: 761-766. DOI: 10.1039/C7Tc05245F  0.366
2018 McDowell C, Narayanaswamy K, Yadagiri B, Gayathri T, Seifrid M, Datt R, Ryno S, Heifner MC, Gupta V, Risko C, Singh SP, Bazan GC. Impact of rotamer diversity on the self-assembly of nearly isostructural molecular semiconductors Journal of Materials Chemistry A. 6: 383-394. DOI: 10.1039/C7Ta09972J  0.311
2018 Yarnell JE, Davydenko I, Dorovatovskii PV, Khrustalev VN, Timofeeva TV, Castellano FN, Marder SR, Risko C, Barlow S. Positional Effects from σ-Bonded Platinum(II) on Intersystem Crossing Rates in Perylenediimide Complexes: Synthesis, Structures, and Photophysical Properties The Journal of Physical Chemistry C. 122: 13848-13862. DOI: 10.1021/Acs.Jpcc.8B01003  0.318
2018 Abtahi A, Mazza SM, Ryno SM, Loya EK, Li R, Parkin SR, Risko C, Anthony JE, Graham KR. Effect of Halogenation on the Energetics of Pure and Mixed Phases in Model Organic Semiconductors Composed of Anthradithiophene Derivatives and C60 The Journal of Physical Chemistry C. 122: 4757-4767. DOI: 10.1021/Acs.Jpcc.7B11729  0.387
2018 Ai Q, Jarolimek K, Mazza S, Anthony JE, Risko C. Delimited Polyacenes: Edge Topology as a Tool To Modulate Carbon Nanoribbon Structure, Conjugation, and Mobility Chemistry of Materials. 30: 947-957. DOI: 10.1021/Acs.Chemmater.7B04715  0.426
2017 Ai Q, Getmanenko YA, Jarolimek K, Castañeda R, Timofeeva TV, Risko C. Unusual Electronic Structure of the Donor-Acceptor Cocrystal Formed by Dithieno[3,2-a:2',3'-c]phenazine and 7,7,8,8-Tetracyanoquinodimethane. The Journal of Physical Chemistry Letters. 4510-4515. PMID 28862454 DOI: 10.1021/Acs.Jpclett.7B01816  0.476
2017 Payne AJ, Li S, Dayneko SV, Risko C, Welch GC. An unsymmetrical non-fullerene acceptor: synthesis via direct heteroarylation, self-assembly, and utility as a low energy absorber in organic photovoltaic cells. Chemical Communications (Cambridge, England). PMID 28852753 DOI: 10.1039/C7Cc05836E  0.371
2017 Mei Y, Diemer PJ, Niazi MR, Hallani RK, Jarolimek K, Day CS, Risko C, Anthony JE, Amassian A, Jurchescu OD. Crossover from band-like to thermally activated charge transport in organic transistors due to strain-induced traps. Proceedings of the National Academy of Sciences of the United States of America. PMID 28739934 DOI: 10.1073/Pnas.1705164114  0.362
2017 Casselman MD, Elliott CF, Modekrutti S, Zhang PL, Parkin SR, Risko C, Odom SA. Beyond the Hammett Effect: Using Strain to Alter the Landscape of Electrochemical Potentials. Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry. PMID 28590586 DOI: 10.1002/Cphc.201700607  0.3
2017 Kowalski JA, Casselman MD, Kaur AP, Milshtein JD, Elliott CF, Modekrutti S, Attanayake NH, Zhang N, Parkin SR, Risko C, Brushett FR, Odom SA. A stable two-electron-donating phenothiazine for application in nonaqueous redox flow batteries Journal of Materials Chemistry A. 5: 24371-24379. DOI: 10.1039/C7Ta05883G  0.417
2017 Shiring SB, Gieseking RL, Risko C, Brédas J. Assessment of Front-Substituted Zwitterionic Cyanine Polymethines for All-Optical Switching Applications The Journal of Physical Chemistry C. 121: 14166-14175. DOI: 10.1021/Acs.Jpcc.7B03471  0.554
2016 Marshall JL, Uchida K, Frederickson CK, Schütt C, Zeidell AM, Goetz KP, Finn TW, Jarolimek K, Zakharov LN, Risko C, Herges R, Jurchescu OD, Haley MM. Indacenodibenzothiophenes: synthesis, optoelectronic properties and materials applications of molecules with strong antiaromatic character. Chemical Science. 7: 5547-5558. PMID 28066536 DOI: 10.1039/C6Sc00950F  0.45
2016 Kastinen T, Niskanen M, Risko C, Cramariuc O, Hukka TI. On describing the optoelectronic characteristics of poly(benzodithiophene-co-quinoxaline)-fullerene complexes: the influence of optimally tuned density functionals. Physical Chemistry Chemical Physics. 18: 27654-27670. PMID 27722580 DOI: 10.1039/C6Cp04567G  0.401
2016 Ryno S, Fu YT, Risko C, Bredas JL. Polarization Energies at Organic-Organic Interfaces: Impact on the Charge Separation Barrier at Donor-Acceptor Interfaces in Organic Solar Cells. Acs Applied Materials & Interfaces. PMID 27244215 DOI: 10.1021/Acsami.6B02851  0.495
2016 Ryno SM, Risko C, Bredas JL. Impact of Molecular Orientation and Packing Density on Electronic Polarization in the Bulk and at Surfaces of Organic Semiconductors. Acs Applied Materials & Interfaces. PMID 27183361 DOI: 10.1021/Acsami.6B02579  0.529
2016 Kastinen T, Niskanen M, Risko C, Cramariuc O, Hukka TI. Intrinsic Properties of Two Benzodithiophene-Based Donor--Acceptor Copolymers Used in Organic Solar Cells: A Quantum-Chemical Approach. Journal of Physical Chemistry A. 120: 1051-1064. PMID 26840559 DOI: 10.1021/Acs.Jpca.5B08465  0.482
2016 Wu Y, Chew AR, Rojas GA, Sini G, Haugstad G, Belianinov A, Kalinin SV, Li H, Risko C, Brédas JL, Salleo A, Frisbie CD. Strain effects on the work function of an organic semiconductor. Nature Communications. 7: 10270. PMID 26831362 DOI: 10.1038/Ncomms10270  0.488
2016 Conboy G, Spencer HJ, Angioni E, Kanibolotsky AL, Findlay NJ, Coles SJ, Wilson C, Pitak MB, Risko C, Coropceanu V, Brédas JL, Skabara PJ. To bend or not to bend-are heteroatom interactions within conjugated molecules effective in dictating conformation and planarity? Materials Horizons. 3: 333-339. DOI: 10.1039/C6Mh00051G  0.493
2016 Thorley KJ, Risko C. On the impact of isomer structure and packing disorder in thienoacene organic semiconductors Journal of Materials Chemistry C. 4: 4040-4048. DOI: 10.1039/C5Tc03900B  0.432
2016 Thorley KJ, Risko C. Mapping the configuration dependence of electronic coupling in organic semiconductors Journal of Materials Chemistry C. 4: 3825-3832. DOI: 10.1039/C5Tc03765D  0.432
2016 Tummala NR, Elroby SA, Aziz SG, Risko C, Coropceanu V, Brédas J. Packing and Disorder in Substituted Fullerenes The Journal of Physical Chemistry C. 120: 17242-17250. DOI: 10.1021/Acs.Jpcc.6B05197  0.583
2016 Kaafarani BR, Risko C, El-Assaad TH, El-Ballouli AO, Marder SR, Barlow S. Mixed-Valence Cations of Di(carbazol-9-yl) Biphenyl, Tetrahydropyrene, and Pyrene Derivatives Journal of Physical Chemistry C. 120: 3156-3166. DOI: 10.1021/Acs.Jpcc.5B11061  0.339
2016 Thorley KJ, Finn TW, Jarolimek K, Anthony JE, Risko C. Theory-Driven Insight into the Crystal Packing of Trialkylsilylethynyl Pentacenes Chemistry of Materials. 29: 2502-2512. DOI: 10.1021/Acs.Chemmater.6B04211  0.474
2016 Ryno SM, Risko C, Brédas J. Noncovalent Interactions and Impact of Charge Penetration Effects in Linear Oligoacene Dimers and Single Crystals Chemistry of Materials. 28: 3990-4000. DOI: 10.1021/Acs.Chemmater.6B01340  0.479
2016 Sweetnam S, Vandewal K, Cho E, Risko C, Coropceanu V, Salleo A, Brédas JL, McGehee MD. Characterizing the Polymer:Fullerene Intermolecular Interactions Chemistry of Materials. 28: 1446-1452. DOI: 10.1021/Acs.Chemmater.5B03378  0.517
2016 Sutton C, Risko C, Brédas JL. Noncovalent Intermolecular Interactions in Organic Electronic Materials: Implications for the Molecular Packing vs Electronic Properties of Acenes Chemistry of Materials. 28: 3-16. DOI: 10.1021/Acs.Chemmater.5B03266  0.6
2016 Castañeda R, Fonari MS, Risko C, Getmanenko YA, Timofeeva TV. Parallel and Perpendicular Packing in Mixed-Stack Cocrystals of Trimeric Perfluoro-ortho-phenylene Mercury and Benzo[1,2-b:6,5-b′]dithiophene-4,5-dione Derivatives Crystal Growth and Design. 16: 2190-2200. DOI: 10.1021/Acs.Cgd.6B00001  0.408
2016 Hyla AS, Winget P, Li H, Risko C, Brédas J. Work function reduction by a redox-active organometallic sandwich complex Organic Electronics. 37: 263-270. DOI: 10.1016/J.Orgel.2016.06.034  0.408
2015 Gieseking RL, Risko C, Brédas JL. Distinguishing the Effects of Bond-Length Alternation versus Bond-Order Alternation on the Nonlinear Optical Properties of π-Conjugated Chromophores. The Journal of Physical Chemistry Letters. 6: 2158-62. PMID 26266585 DOI: 10.1021/Acs.Jpclett.5B00812  0.541
2015 Gieseking RL, Ensley TR, Hu H, Hagan DJ, Risko C, Van Stryland EW, Brédas JL. Nonlinear Optical Properties of X(C6H5)4 (X = B(-), C, N(+), P(+)): A New Class of Molecules with a Negative Third-Order Polarizability. Journal of the American Chemical Society. 137: 9635-42. PMID 26098179 DOI: 10.1021/Jacs.5B04377  0.512
2015 Zhang S, Naab BD, Jucov EV, Parkin S, Evans EG, Millhauser GL, Timofeeva TV, Risko C, Brédas JL, Bao Z, Barlow S, Marder SR. n-Dopants Based on Dimers of Benzimidazoline Radicals: Structures and Mechanism of Redox Reactions. Chemistry (Weinheim An Der Bergstrasse, Germany). 21: 10878-85. PMID 26088609 DOI: 10.1002/Chem.201500611  0.491
2015 Sutton C, Marshall MS, Sherrill CD, Risko C, Bredas JL. Rubrene: The interplay between intramolecular and intermolecular interactions determines the planarization of its tetracene core in the solid state. Journal of the American Chemical Society. PMID 26075966 DOI: 10.1021/Jacs.5B04066  0.79
2015 Tummala NR, Bruner C, Risko C, Brédas JL, Dauskardt RH. Molecular-Scale Understanding of Cohesion and Fracture in P3HT:Fullerene Blends. Acs Applied Materials & Interfaces. 7: 9957-64. PMID 25895745 DOI: 10.1021/Acsami.5B02202  0.524
2015 Casselman MD, Kaur AP, Narayana KA, Elliott CF, Risko C, Odom SA. The fate of phenothiazine-based redox shuttles in lithium-ion batteries. Physical Chemistry Chemical Physics : Pccp. 17: 6905-12. PMID 25673473 DOI: 10.1039/C5Cp00199D  0.324
2015 Narayana KA, Casselman MD, Elliott CF, Ergun S, Parkin SR, Risko C, Odom SA. N-substituted phenothiazine derivatives: how the stability of the neutral and radical cation forms affects overcharge performance in lithium-ion batteries. Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry. 16: 1179-89. PMID 25504135 DOI: 10.1002/Cphc.201402674  0.303
2015 Parker TC, Patel DG, Moudgil K, Barlow S, Risko C, Brédas JL, Reynolds JR, Marder SR. Heteroannulated acceptors based on benzothiadiazole Materials Horizons. 2: 22-36. DOI: 10.1039/C4Mh00102H  0.557
2015 Moudgil K, Mann MA, Risko C, Bottomley LA, Marder SR, Barlow S. Dimers of Nineteen-Electron Sandwich Compounds: An Electrochemical Study of the Kinetics of Their Formation Organometallics. 34: 3706-3712. DOI: 10.1021/Acs.Organomet.5B00327  0.303
2015 Tummala NR, Sutton C, Aziz SG, Toney MF, Risko C, Bredas JL. Effect of Solvent Additives on the Solution Aggregation of Phenyl-C61-Butyl Acid Methyl Ester (PCBM) Chemistry of Materials. 27: 8261-8272. DOI: 10.1021/Acs.Chemmater.5B03254  0.497
2015 Do K, Risko C, Anthony JE, Amassian A, Brédas JL. Dynamics, Miscibility, and Morphology in Polymer:Molecule Blends: The Impact of Chemical Functionality Chemistry of Materials. 27: 7643-7651. DOI: 10.1021/Acs.Chemmater.5B02983  0.518
2015 Tummala NR, Risko C, Bruner C, Dauskardt RH, Brédas JL. Entanglements in P3HT and their influence on thin-film mechanical properties: Insights from molecular dynamics simulations Journal of Polymer Science, Part B: Polymer Physics. 53: 934-942. DOI: 10.1002/Polb.23722  0.5
2014 Williams M, Tummala NR, Aziz SG, Risko C, Brédas JL. Influence of Molecular Shape on Solid-State Packing in Disordered PC61BM and PC71BM Fullerenes. The Journal of Physical Chemistry Letters. 5: 3427-33. PMID 26278457 DOI: 10.1021/Jz501559Q  0.598
2014 Mohapatra SK, Fonari A, Risko C, Yesudas K, Moudgil K, Delcamp JH, Timofeeva TV, Brédas JL, Marder SR, Barlow S. Dimers of nineteen-electron sandwich compounds: crystal and electronic structures, and comparison of reducing strengths. Chemistry (Weinheim An Der Bergstrasse, Germany). 20: 15385-94. PMID 25283531 DOI: 10.1002/Chem.201404007  0.528
2014 Ryno SM, Risko C, Brédas JL. Impact of molecular packing on electronic polarization in organic crystals: the case of pentacene vs TIPS-pentacene. Journal of the American Chemical Society. 136: 6421-7. PMID 24725006 DOI: 10.1021/Ja501725S  0.559
2014 Viani L, Risko C, Toney MF, Breiby DW, Brédas JL. Substrate-induced variations of molecular packing, dynamics, and intermolecular electronic couplings in pentacene monolayers on the amorphous silica dielectric. Acs Nano. 8: 690-700. PMID 24369713 DOI: 10.1021/Nn405399N  0.573
2014 Gieseking RL, Mukhopadhyay S, Risko C, Marder SR, Brédas JL. 25th anniversary article: Design of polymethine dyes for all-optical switching applications: guidance from theoretical and computational studies. Advanced Materials (Deerfield Beach, Fla.). 26: 68-83. PMID 24302357 DOI: 10.1002/Adma.201302676  0.49
2014 Risko C, Brédas JL. Small optical gap molecules and polymers: using theory to design more efficient materials for organic photovoltaics. Topics in Current Chemistry. 352: 1-38. PMID 23780413 DOI: 10.1007/128_2013_459  0.538
2014 Lima IT, Risko C, Aziz SG, Da Silva Filho DA, Brédas JL. Interplay of alternative conjugated pathways and steric interactions on the electronic and optical properties of donor-acceptor conjugated polymers Journal of Materials Chemistry C. 2: 8873-8879. DOI: 10.1039/C4Tc01264J  0.58
2014 Barlow S, Brédas JL, Getmanenko YA, Gieseking RL, Hales JM, Kim H, Marder SR, Perry JW, Risko C, Zhang Y. Polymethine materials with solid-state third-order optical susceptibilities suitable for all-optical signal-processing applications Materials Horizons. 1: 577-581. DOI: 10.1039/C4Mh00068D  0.475
2014 Gieseking RL, Mukhopadhyay S, Risko C, Brédas JL. Impact of the Nature of the Excited-State Transition Dipole Moments on the Third-Order Nonlinear Optical Response of Polymethine Dyes for All-Optical Switching Applications Acs Photonics. 1: 261-269. DOI: 10.1021/Ph4001444  0.491
2014 Gieseking RL, Mukhopadhyay S, Shiring SB, Risko C, Brédas JL. Impact of bulk aggregation on the electronic structure of streptocyanines: Implications for the solid-state nonlinear optical properties and all-optical switching applications Journal of Physical Chemistry C. 118: 23575-23585. DOI: 10.1021/Jp507920J  0.555
2014 Gieseking RL, Mukhopadhyay S, Risko C, Marder SR, Brédas JL. Effect of bulky substituents on thiopyrylium polymethine aggregation in the solid state: A theoretical evaluation of the implications for all-optical switching applications Chemistry of Materials. 26: 6439-6447. DOI: 10.1021/Cm5028755  0.524
2014 Warnan J, El Labban A, Cabanetos C, Hoke ET, Shukla PK, Risko C, Brédas JL, McGehee MD, Beaujuge PM. Ring substituents mediate the morphology of PBDTTPD-PCBM bulk-heterojunction solar cells Chemistry of Materials. 26: 2299-2306. DOI: 10.1021/Cm500172W  0.499
2014 Fu YT, Yi Y, Coropceanu V, Risko C, Aziz SG, Brédas JL. Theoretical description of the geometric and electronic structures of organic-organic interfaces in organic solar cells: a brief review Science China Chemistry. DOI: 10.1007/S11426-014-5184-X  0.533
2014 Mohapatra SK, Fonari A, Risko C, Yesudas K, Moudgil K, Delcamp JH, Timofeeva TV, Brédas J, Marder SR, Barlow S. Back Cover: Dimers of Nineteen-Electron Sandwich Compounds: Crystal and Electronic Structures, and Comparison of Reducing Strengths (Chem. Eur. J. 47/2014) Chemistry - a European Journal. 20: 15636-15636. DOI: 10.1002/Chem.201490197  0.531
2014 Fu Y, da Silva Filho DA, Sini G, Asiri AM, Aziz SG, Risko C, Brédas J. Interfaces: Structure and Disorder in Squaraine-C60 Organic Solar Cells: A Theoretical Description of Molecular Packing and Electronic Coupling at the Donor-Acceptor Interface (Adv. Funct. Mater. 24/2014) Advanced Functional Materials. 24: 3653-3653. DOI: 10.1002/Adfm.201470155  0.539
2014 Fu YT, Da Silva Filho DA, Sini G, Asiri AM, Aziz SG, Risko C, Brédas JL. Structure and disorder in squaraine-C60 organic solar cells: A theoretical description of molecular packing and electronic coupling at the donor-acceptor interface Advanced Functional Materials. 24: 3790-3798. DOI: 10.1002/Adfm.201303941  0.591
2013 Risko C, Brédas JL. Organic semiconductors: Healing contact. Nature Materials. 12: 1084-5. PMID 24162881 DOI: 10.1038/Nmat3808  0.471
2013 Fraind AM, Sini G, Risko C, Ryzhkov LR, Brédas JL, Tovar JD. Charge delocalization through benzene, naphthalene, and anthracene bridges in π-conjugated oligomers: an experimental and quantum chemical study. The Journal of Physical Chemistry. B. 117: 6304-17. PMID 23631763 DOI: 10.1021/Jp401448A  0.577
2013 Li H, Winget P, Risko C, Sears JS, Brédas JL. Tuning the electronic and photophysical properties of heteroleptic iridium(III) phosphorescent emitters through ancillary ligand substitution: a theoretical perspective. Physical Chemistry Chemical Physics : Pccp. 15: 6293-302. PMID 23519059 DOI: 10.1039/C3Cp50631B  0.719
2013 Fu YT, Risko C, Brédas JL. Intermixing at the pentacene-fullerene bilayer interface: a molecular dynamics study. Advanced Materials (Deerfield Beach, Fla.). 25: 878-82. PMID 23184531 DOI: 10.1002/Adma.201203412  0.447
2013 Wunsch BH, Rumi M, Tummala NR, Risko C, Kang DY, Steirer KX, Gantz J, Said M, Armstrong NR, Brédas JL, Bucknall D, Marder SR. Structure-processing-property correlations in solution-processed, small-molecule, organic solar cells Journal of Materials Chemistry C. 1: 5250-5260. DOI: 10.1039/C3Tc30774C  0.56
2013 Grimm B, Risko C, Azoulay JD, Brédas JL, Bazan GC. Structural dependence of the optical properties of narrow bandgap semiconductors with orthogonal donor-acceptor geometries Chemical Science. 4: 1807-1819. DOI: 10.1039/C3Sc22188A  0.56
2013 Getmanenko YA, Fonari M, Risko C, Sandhu B, Galán E, Zhu L, Tongwa P, Hwang DK, Singh S, Wang H, Tiwari SP, Loo YL, Brédas JL, Kippelen B, Timofeeva T, et al. Benzo[1,2-b:6,5-b′]dithiophene(dithiazole)-4,5-dione derivatives: Synthesis, electronic properties, crystal packing and charge transport Journal of Materials Chemistry C. 1: 1467-1481. DOI: 10.1039/C2Tc00805J  0.568
2013 Kaafarani BR, El-Ballouli AO, Trattnig R, Fonari A, Sax S, Wex B, Risko C, Khnayzer RS, Barlow S, Patra D, Timofeeva TV, List EJW, Brédas JL, Marder SR. Bis(carbazolyl) derivatives of pyrene and tetrahydropyrene: Synthesis, structures, optical properties, electrochemistry, and electroluminescence Journal of Materials Chemistry C. 1: 1638-1650. DOI: 10.1039/C2Tc00474G  0.469
2013 Estrada LA, Stalder R, Abboud KA, Risko C, Brédas JL, Reynolds JR. Understanding the electronic structure of isoindigo in conjugated systems: A combined theoretical and experimental approach. Macromolecules. 46: 8832-8844. DOI: 10.1021/Ma4013829  0.58
2013 Ryno SM, Lee SR, Sears JS, Risko C, Brédas JL. Electronic polarization effects upon charge injection in oligoacene molecular crystals: Description via a polarizable force field Journal of Physical Chemistry C. 117: 13853-13860. DOI: 10.1021/Jp402991Z  0.73
2013 Poelking C, Cho E, Malafeev A, Ivanov V, Kremer K, Risko C, Brédas JL, Andrienko D. Characterization of charge-carrier transport in semicrystalline polymers: Electronic couplings, site energies, and charge-carrier dynamics in poly(bithiophene-alt-thienothiophene) [PBTTT] Journal of Physical Chemistry C. 117: 1633-1640. DOI: 10.1021/Jp311160Y  0.544
2013 McGarry KA, Xie W, Sutton C, Risko C, Wu Y, Young VG, Brédas JL, Frisbie CD, Douglas CJ. Rubrene-based single-crystal organic semiconductors: Synthesis, electronic structure, and charge-transport properties Chemistry of Materials. 25: 2254-2263. DOI: 10.1021/Cm400736S  0.574
2013 Tummala NR, Mehraeen S, Fu YT, Risko C, Brédas JL. Materials-scale implications of solvent and temperature on [6,6]-phenyl-C61-butyric acid methyl ester (PCBM): A theoretical perspective Advanced Functional Materials. 23: 5800-5813. DOI: 10.1002/Adfm.201300918  0.57
2012 Guo S, Mohapatra SK, Romanov A, Timofeeva TV, Hardcastle KI, Yesudas K, Risko C, Brédas JL, Marder SR, Barlow S. n-Doping of organic electronic materials using air-stable organometallics: a mechanistic study of reduction by dimeric sandwich compounds. Chemistry (Weinheim An Der Bergstrasse, Germany). 18: 14760-72. PMID 23108797 DOI: 10.1002/Chem.201202591  0.558
2012 Miller NC, Cho E, Junk MJ, Gysel R, Risko C, Kim D, Sweetnam S, Miller CE, Richter LJ, Kline RJ, Heeney M, McCulloch I, Amassian A, Acevedo-Feliz D, Knox C, et al. Use of X-ray diffraction, molecular simulations, and spectroscopy to determine the molecular packing in a polymer-fullerene bimolecular crystal. Advanced Materials (Deerfield Beach, Fla.). 24: 6071-9. PMID 22949357 DOI: 10.1002/Adma.201202293  0.538
2012 Nicolai HT, Kuik M, Wetzelaer GA, de Boer B, Campbell C, Risko C, Brédas JL, Blom PW. Unification of trap-limited electron transport in semiconducting polymers. Nature Materials. 11: 882-7. PMID 22842510 DOI: 10.1038/Nmat3384  0.54
2012 Barlow S, Risko C, Odom SA, Zheng S, Coropceanu V, Beverina L, Brédas JL, Marder SR. Tuning delocalization in the radical cations of 1,4-bis[4-(diarylamino)styryl]benzenes, 2,5-bis[4-(diarylamino)styryl]thiophenes, and 2,5-bis[4-(diarylamino)styryl]pyrroles through substituent effects. Journal of the American Chemical Society. 134: 10146-55. PMID 22681494 DOI: 10.1021/Ja3023048  0.553
2012 Beaujuge PM, Tsao HN, Hansen MR, Amb CM, Risko C, Subbiah J, Choudhury KR, Mavrinskiy A, Pisula W, Brédas JL, So F, Müllen K, Reynolds JR. Synthetic principles directing charge transport in low-band-gap dithienosilole-benzothiadiazole copolymers. Journal of the American Chemical Society. 134: 8944-57. PMID 22607114 DOI: 10.1021/Ja301898H  0.585
2012 Ko S, Hoke ET, Pandey L, Hong S, Mondal R, Risko C, Yi Y, Noriega R, McGehee MD, Brédas JL, Salleo A, Bao Z. Controlled conjugated backbone twisting for an increased open-circuit voltage while having a high short-circuit current in poly(hexylthiophene) derivatives. Journal of the American Chemical Society. 134: 5222-32. PMID 22385287 DOI: 10.1021/Ja210954R  0.523
2012 Cho E, Risko C, Kim D, Gysel R, Miller NC, Breiby DW, McGehee MD, Toney MF, Kline RJ, Bredas JL. Three-dimensional packing structure and electronic properties of biaxially oriented poly(2,5-bis(3-alkylthiophene-2-yl)thieno[3,2-b]thiophene) films. Journal of the American Chemical Society. 134: 6177-90. PMID 22372611 DOI: 10.1021/Ja210272Z  0.544
2012 Mukhopadhyay S, Risko C, Marder SR, Brédas JL. Polymethine dyes for all-optical switching applications: A quantum-chemical characterization of counter-ion and aggregation effects on the third-order nonlinear optical response Chemical Science. 3: 3103-3112. DOI: 10.1039/C2Sc20861J  0.492
2012 Qiao Y, Wei Z, Risko C, Li H, Brédas JL, Xu W, Zhu D. Synthesis, experimental and theoretical characterization, and field-effect transistor properties of a new class of dibenzothiophene derivatives: From linear to cyclic architectures Journal of Materials Chemistry. 22: 1313-1325. DOI: 10.1039/C1Jm13962B  0.589
2012 Pandey L, Risko C, Norton JE, Brédas JL. Donor-acceptor copolymers of relevance for organic photovoltaics: A theoretical investigation of the impact of chemical structure modifications on the electronic and optical properties Macromolecules. 45: 6405-6414. DOI: 10.1021/Ma301164E  0.588
2012 Sajoto T, Tiwari SP, Li H, Risko C, Barlow S, Zhang Q, Cho JY, Brédas JL, Kippelen B, Marder SR. Synthesis and characterization of naphthalene diimide/diethynylbenzene copolymers Polymer. 53: 1072-1078. DOI: 10.1016/J.Polymer.2012.01.016  0.473
2012 Guo S, Mohapatra SK, Romanov A, Timofeeva TV, Hardcastle KI, Yesudas K, Risko C, Brédas J, Marder SR, Barlow S. Cover Picture: n-Doping of Organic Electronic Materials Using Air-Stable Organometallics: A Mechanistic Study of Reduction by Dimeric Sandwich Compounds (Chem. Eur. J. 46/2012) Chemistry - a European Journal. 18: 14541-14541. DOI: 10.1002/Chem.201290198  0.529
2012 Miller NC, Cho E, Gysel R, Risko C, Coropceanu V, Miller CE, Sweetnam S, Sellinger A, Heeney M, McCulloch I, Brédas JL, Toney MF, McGehee MD. Factors governing intercalation of fullerenes and other small molecules between the side chains of semiconducting polymers used in solar cells Advanced Energy Materials. 2: 1208-1217. DOI: 10.1002/Aenm.201200392  0.491
2011 Li H, Risko C, Seo JH, Campbell C, Wu G, Brédas JL, Bazan GC. Fullerene-carbene Lewis acid-base adducts. Journal of the American Chemical Society. 133: 12410-3. PMID 21761908 DOI: 10.1021/Ja204974M  0.483
2011 Getmanenko YA, Risko C, Tongwa P, Kim EG, Li H, Sandhu B, Timofeeva T, Brédas JL, Marder SR. Mono- and dicarbonyl-bridged tricyclic heterocyclic acceptors: synthesis and electronic properties. The Journal of Organic Chemistry. 76: 2660-71. PMID 21391630 DOI: 10.1021/Jo102502U  0.555
2011 Risko C, McGehee MD, Brédas JL. A quantum-chemical perspective into low optical-gap polymers for highly-efficient organic solar cells Chemical Science. 2: 1200-1218. DOI: 10.1039/C0Sc00642D  0.527
2011 Polander LE, Pandey L, Barlow S, Tiwari SP, Risko C, Kippelen B, Brédas JL, Marder SR. Benzothiadiazole-dithienopyrrole donor-acceptor-donor and acceptor-donor-acceptor triads: Synthesis and optical, electrochemical, and charge-transport properties Journal of Physical Chemistry C. 115: 23149-23163. DOI: 10.1021/Jp208643K  0.498
2011 Bloking JT, Han X, Higgs AT, Kastrop JP, Pandey L, Norton JE, Risko C, Chen CE, Brédas JL, McGehee MD, Sellinger A. Solution-processed organic solar cells with power conversion efficiencies of 2.5% using benzothiadiazole/imide-based acceptors Chemistry of Materials. 23: 5484-5490. DOI: 10.1021/Cm203111K  0.554
2011 Polander LE, Tiwari SP, Pandey L, Seifried BM, Zhang Q, Barlow S, Risko C, Brédas JL, Kippelen B, Marder SR. Solution-processed molecular bis(naphthalene diimide) derivatives with high electron mobility Chemistry of Materials. 23: 3408-3410. DOI: 10.1021/Cm201729S  0.5
2010 Choi SH, Risko C, Delgado MC, Kim B, Brédas JL, Frisbie CD. Transition from tunneling to hopping transport in long, conjugated oligo-imine wires connected to metals. Journal of the American Chemical Society. 132: 4358-68. PMID 20218660 DOI: 10.1021/Ja910547C  0.491
2010 Scott A, Risko C, Valley N, Ratner MA, Janes DB. Molecular modulation of Schottky barrier height in metal-molecule-silicon diodes: Capacitance and simulation results Journal of Applied Physics. 107. DOI: 10.1063/1.3251466  0.332
2010 Ko S, Mondal R, Risko C, Lee JK, Hong S, McGehee MD, Brédas JL, Bao Z. Tuning the optoelectronic properties of vinylene-linked donor-acceptor copolymers for organic photovoltaics Macromolecules. 43: 6685-6698. DOI: 10.1021/Ma101088F  0.49
2009 Usta H, Risko C, Wang Z, Huang H, Deliomeroglu MK, Zhukhovitskiy A, Facchetti A, Marks TJ. Design, synthesis, and characterization of ladder-type molecules and polymers. Air-stable, solution-processable n-channel and ambipolar semiconductors for thin-film transistors via experiment and theory. Journal of the American Chemical Society. 131: 5586-608. PMID 19331320 DOI: 10.1021/Ja809555C  0.425
2008 Lu G, Usta H, Risko C, Wang L, Facchetti A, Ratner MA, Marks TJ. Synthesis, characterization, and transistor response of semiconducting silole polymers with substantial hole mobility and air stability. Experiment and theory. Journal of the American Chemical Society. 130: 7670-85. PMID 18505257 DOI: 10.1021/Ja800424M  0.384
2008 Berlin A, Risko C, Ratner MA. Geometric and chelation influences on the electronic structure and optical properties of tetra(carboxylic acid)phenyleneethynylene dyes. The Journal of Physical Chemistry. A. 112: 4202-8. PMID 18399673 DOI: 10.1021/Jp077692Z  0.414
2008 Zhan X, Haldi A, Risko C, Chan CK, Zhao W, Timofeeva TV, Korlyukov A, Antipin MY, Montgomery S, Thompson E, An Z, Domercq B, Barlow S, Kahn A, Kippelen B, et al. Fluorenyl-substituted silole molecules: Geometric, electronic, optical, and device properties Journal of Materials Chemistry. 18: 3157-3166. DOI: 10.1039/B803470B  0.583
2008 Risko C, Zangmeister CD, Yao Y, Marks TJ, Tour JM, Ratner MA, Van Zee RD. Experimental and theoretical identification of valence energy levels and interface dipole trends for a family of (oligo)phenylene-ethynylenethiols adsorbed on gold Journal of Physical Chemistry C. 112: 13215-13225. DOI: 10.1021/Jp8023183  0.468
2008 Risko C, Coropceanu V, Barlow S, Geskin V, Schmidt K, Gruhn NE, Marder SR, Brédas J. Trends in Electron-Vibration and Electronic Interactions in Bis(dimethylamino) Mixed-Valence Systems: A Joint Experimental and Theoretical Investigation The Journal of Physical Chemistry C. 112: 7959-7967. DOI: 10.1021/Jp711954J  0.543
2008 Koh SE, Risko C, Da Silva Filho DA, Kwon O, Facchetti A, Brédas JL, Marks TJ, Ratner MA. Modeling electron and hole transport in fluoroarene-oligothiopene semiconductors: Investigation of geometric and electronic structure properties Advanced Functional Materials. 18: 332-340. DOI: 10.1002/Adfm.200700713  0.585
2007 Barlow S, Zhang Q, Kaafarani BR, Risko C, Amy F, Chan CK, Domercq B, Starikova ZA, Antipin MY, Timofeeva TV, Kippelen B, Brédas JL, Kahn A, Marder SR. Synthesis, ionisation potentials and electron affinities of hexaazatrinaphthylene derivatives. Chemistry (Weinheim An Der Bergstrasse, Germany). 13: 3537-47. PMID 17226870 DOI: 10.1002/Chem.200601298  0.592
2007 Scott A, Janes DB, Risko C, Ratner MA. Fabrication and characterization of metal-molecule-silicon devices Applied Physics Letters. 91. DOI: 10.1063/1.2750516  0.311
2007 Grave C, Risko C, Shaporenko A, Wang Y, Nuckolls C, Ratner MA, Rampi MA, Zharnikov M. Charge transport through oligoarylene self-assembled monolayers: Interplay of molecular organization, metal-molecule interactions, and electronic structure Advanced Functional Materials. 17: 3816-3828. DOI: 10.1002/Adfm.200700459  0.474
2006 Zheng S, Barlow S, Risko C, Kinnibrugh TL, Khrustalev VN, Jones SC, Antipin MY, Tucker NM, Timofeeva TV, Coropceanu V, Brédas JL, Marder SR. Isolation and crystal structures of two singlet bis(triarylamine) dications with nonquinoidal geometries. Journal of the American Chemical Society. 128: 1812-7. PMID 16464079 DOI: 10.1021/Ja0541534  0.497
2006 Zhan X, Risko C, Korlyukov A, Sena F, Timofeeva TV, Antipin MY, Barlow S, Brédas J, Marder SR. Comparative studies of the geometric and electronic properties of 1,1-disubstituted-2,3,4,5-tetraphenylsiloles and 1,1,2,2-tetramethyl-3,4,5,6-tetraphenyl-1,2-disila-3,5-cyclohexadiene J. Mater. Chem.. 16: 3814-3822. DOI: 10.1039/B605343B  0.58
2006 Coropceanu V, Boldyrev SI, Risko C, Brédas JL. The impact of symmetric modes on intramolecular electron transfer: A semi-classical approach Chemical Physics. 326: 107-114. DOI: 10.1016/J.Chemphys.2006.01.002  0.505
2005 Barlow S, Risko C, Chung SJ, Tucker NM, Coropceanu V, Jones SC, Levi Z, Brédas JL, Marder SR. Intervalence transitions in the mixed-valence monocations of bis(triarylamines) linked with vinylene and phenylene-vinylene bridges. Journal of the American Chemical Society. 127: 16900-11. PMID 16316236 DOI: 10.1021/Ja054136E  0.47
2005 Kaafarani BR, Kondo T, Yu J, Zhang Q, Dattilo D, Risko C, Jones SC, Barlow S, Domercq B, Amy F, Kahn A, Brédas JL, Kippelen B, Marder SR. High charge-carrier mobility in an amorphous hexaazatrinaphthylene derivative. Journal of the American Chemical Society. 127: 16358-9. PMID 16305198 DOI: 10.1021/Ja0553147  0.474
2005 Zhan X, Risko C, Amy F, Chan C, Zhao W, Barlow S, Kahn A, Brédas JL, Marder SR. Electron affinities of 1,1-diaryl-2,3,4,5-tetraphenylsiloles: direct measurements and comparison with experimental and theoretical estimates. Journal of the American Chemical Society. 127: 9021-9. PMID 15969579 DOI: 10.1021/Ja051139I  0.557
2005 Lambert C, Risko C, Coropceanu V, Schelter J, Amthor S, Gruhn NE, Durivage JC, Brédas JL. Electronic coupling in tetraanisylarylenediamine mixed-valence systems: the interplay between bridge energy and geometric factors. Journal of the American Chemical Society. 127: 8508-16. PMID 15941286 DOI: 10.1021/Ja0512172  0.532
2005 Barlow S, Risko C, Coropceanu V, Tucker NM, Jones SC, Levi Z, Khrustalev VN, Antipin MY, Kinnibrugh TL, Timofeeva T, Marder SR, Brédas JL. A mixed-valence bis(diarylamino)stilbene: crystal structure and comparison of electronic coupling with biphenyl and tolane analogues. Chemical Communications (Cambridge, England). 764-6. PMID 15685330 DOI: 10.1039/B415018J  0.515
2005 Risko C, Kushto GP, Kafafi ZH, Brédas JL. Erratum: Electronic properties of silole-based organic semiconductors [J. Chem. Phys. 121, 9031 (2004)] Journal of Chemical Physics. 122: 99901-99901. DOI: 10.1063/1.1854624  0.438
2005 Risko C, Zojer E, Brocorens P, Marder S, Brédas J. Bis-aryl substituted dioxaborines as electron-transport materials: a comparative density functional theory investigation with oxadiazoles and siloles Chemical Physics. 313: 151-157. DOI: 10.1016/J.Chemphys.2004.12.020  0.559
2004 Risko C, Kushto GP, Kafati ZH, Brédas JL. Electronic properties of silole-based organic semiconductors. Journal of Chemical Physics. 121: 9031-9038. PMID 15527368 DOI: 10.1063/1.1804155  0.487
2003 Risko C, Barlow S, Coropceanu V, Halik M, Brédas JL, Marder SR. An anionic organic mixed-valence system with a remarkably well-resolved vibrational structure in its intervalence band. Chemical Communications (Cambridge, England). 194-5. PMID 12585387 DOI: 10.1039/B210429F  0.496
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