Publications

Google Scholar link

At the University of Kentucky

53. Uddin, M. A.; Hossain, T.; Kothalawala, N. L.; Syed, J.; Kim, D.-Y.; Graham, K. R.* ACS Appl. Electron. Mater. 2022, DOI: 10.1021/acsaelm.1c01318 “Multifunctional Thiol-Containing Additives for Improved Photoluminescence and Photovoltaic Performance of Cs0.15FA0.85PbI3 Perovskites” link 52. Lin, R.; Xu, J.; Wei, M.; Wang, Y.; Qin, Z.; Liu, Z.; Wu, J.; Xiao, K.; Chen, B.; Park, S. M.; Chen, G.; Atapattu, H. R.; Graham, K. R.; Xu, J.; Zhu, J.; Zhang, C.; Sargent, E. H.; Tan, H. Nature. 2022, 603, 78. “Efficient all-perovskite tandem solar cells with enhanced adsorption of passivating ligands” link

51. Baustert, K. N.; Abtahi, A.; Ayyash, A.; Graham, K. R.* J. Polymer Sci. 2021, 60, 602. “Impact of the anion on electrochemically doped regioregular and regiorandom poly(3-hexylthiophene)” link 50. Lansing, J. L.; Zhao, L.; Siboonruang, T.; Attanayake, N. H.; Leo, A. B.; Fatouros, P.; Park, S. M.; Graham, K. R.; Keith, J. A.; Tang, M. AIChE J. 2021, 67, e17486. “Gd-Ni-Sb-SnO2 electrocatalysts for active and selective ozone production” link

49. Ma, K.; Atapattu, H. R.; Zhao, Q.; Gao, Y.; Finkenauer, B. P.; Wang, K.; Chen, K.; Park, S. M.; Coffey, A. H.; Zhu, C.; Huang, L.; Graham, K. R.; Mei, J.; Dou, L. Adv. Mater. 2021, 33, 2100791. “Multifunctional Conjugated Ligand Engineering for Stable and Efficient Perovskite Solar Cells” link

48. Liang, Z.; Choi, H. H.; Luo, X.; Liu, T.; Abtahi, A.; Ramasamy, U. S; Hitron, J. A.; Baustert, K. N.; Hempel, J. L.; Boehm, A. M.; Ansary, A.; Strachan, D. R.; Mei, J.; Risko, C.; Podzorov, V.; Graham, K. R*. Nature Mater. https://rdcu.be/cc2C5 “n-Type Charge Transport in Heavily p-Doped Polymers” link 47. Schopp, N.; Brus, V. V.; Lee, J.; Dixon, A.; Karki, A.; Liu, T.; Peng, Z.; Graham, K. R.; Ade, H.; Bazan, G. C.; Nguyen, T.-N. Adv. Funct. Mater. “Effect of Palladium-tetrakis(triphenylphosphine) Catalyst Traces on Charge Extraction and Recombination in Non-Fullerene Organic Solar Cells”. link

46. Uddin, M. A.; Glover, J. D.; Park, S. M.; Pham, J. T.; Graham, K. R. Chem. Mater. 2020, 32, 5217-5225. “Growth of Highly Stable and Luminescent CsPbX3 (X = Cl, Br, and I) Nanoplates via Ligand Mediated Anion Exchange of CsPbCl3 Nanocubes with AlX3” link 45. Xia, P.; Davies, D. W.; Patel, B. B.; Qin, M.; Liang, Z.; Graham, K. R.; Diao, Y.; Tang, M. L. Nanoscale. Advance Article, DOI: 10.1039/D0NR02299C “Spin-coated fluorinated PbS QD superlattice thin films with high hole mobility” link 44. Park, S. M.; Abtahi, A.; Boehm, A. M.; Graham, K. R. ACS Energy Lett. 2020, 5, 799-806. “Surface Ligands for Methylammonium Lead Iodide Films: Surface Coverage, Energetics, and Photovoltaic Performance” link 43. Boehm, A. B.; Liu, T.; Park, S. M.; Abtahi, A.; Graham, K. R. ACS Appl. Mater. Interfaces, ASAP, DOI: 10.1021/acsami.9b17535. “Influence of Surface Ligands on Energetics at FASnI3/C60 Interfaces and Their Impact on Photovoltaic Performance” link 42. Petty, A. J.; Ai, Q.; Sorli, J. C.; Haneef, H. F.; Purdum, G. E.; Boehm, A.; Granger, D. B.; Gu, K.; Rubinger, C. P. L.; Parkin, S. R.; Graham, K. R.; Jurchescu, O. D.; Loo, Y.-L.; Risko, C.; Anthony, J. E. Chem. Sci., 2019, 10, 10543-10549. “Computationally Aided Design of a High-Performance Organic Semiconductor: The Development of a Universal Crystal Engineering Core.” link

41. Yurash, B.; Cao, D. X.; Brus, V. V.; Leifert, D.; Wang, M.; Dixon, A.; Seifrid, M.; Mansour, A. E.; Lungwitz, D.; Liu, T.; Santiago, P. J.; Graham, K. R.; Koch, N.; Bazan, G. C.; Nguyen, T.-Q. Nature Mater. 2019, 18, 1327-1334. “Towards understanding the doping mechanism of organic semiconductors by Lewis acids” link

40. Huang, Z.; Xu, A.; Mahboub, M.; Liang, Z.; Jaimes, P.; Xia, P.; Graham, K. R.; Tang, M. L.; Lian, T. J. Am. Chem. Soc. 2019, 141, 9769-9772. “Enhanced Near-Infrared-to-Visible Upconversion by Synthetic Control of PbS Nanocrystal Triplet Photosensitizers” link

39. Abtahi, A.; Johnson, S.; Park, S. M.; Luo, Z.; Liang, Z.; Mei, J.; Graham, K. R. J. Mater. Chem. A 2019, 7, 19774-19785. “Designing π-conjugated polymer blends with improved thermoelectric power factors” link 38. Uddin, M. A.; Mobley, J. K.; Masud, A. A.; Liu, T.; Calabro, R. L.; Kim, D.-Y.; Richards, C. I.; Graham, K. R. J. Phys. Chem. C 2019, 123, 18103-18112. “Mechanistic Exploration of Dodecanethiol-Treated Colloidal CsPbBr3 Nanocrystals with Photoluminescence Quantum Yields Reaching Near 100%” link 37. Wang, F.; Ye, Z.; Sarvaria, H.; Park, S. M.; Abtahi, A.; Graham, K. R.; Zhao, Y.; Wang, Y.; Chen, Z. D.; Li, S. J. Power Sources. 2019, 412, 359-365. “Humidity-insensitive fabrication of efficient perovskite solar cells in ambient air” link

36. Liang, Z.; Zhang, Y.; Souri, M.; Luo, X.; Boehm, A. M.; Li, R.; Zhang, Y.; Wang, T.; Kim, D.-Y.; Mei, J.; Marder, S. R.; Graham, K. R. J. Mater. Chem. A J. Mater. Chem. A 2018, 6, 16495-16505 “Influence of dopant size and electron affinity on the electrical conductivity and thermoelectric properties of a series of conjugated polymers” link
35. Xia, P.; Liang, Z.; Mahboub, M.; van Baren, J.; Lui, C. H.; Jiao, J.; Graham, K. R.; Tang, M. L. Chem. Mater. 2018, 30, 4943-4948 “Surface Fluorination for Controlling the PbS Quantum Dot Bandgap and Band Offset” link

34. Park, S. M.; Mazza, S. M.; Liang, Z.; Abtahi, A.; Boehm, A. M.; Parkin, S. R.; Anthony, J. E.; Graham, K. R. ACS Appl. Mater. Interfaces , 2018, 10, 15548-15557. “Processing Dependent Influence of the Hole Transport Layer Ionization Energy on Methylammonium Lead Iodide Perovskite Photovoltaics”link
33. Abtahi, A.; Mazza, S. M.; Ryno, S. M.; Loya, E. K.; Li, R.; Parkin, S. R.; Risko, C.; Anthony, J. E.; Graham, K. R. J. Phys. Chem. C, 2018, 122, 4757-4767. “Effect of Halogenation on the Energetics of Pure and Mixed Phases in Model Organic Semiconductors Comprised of Anthradithiophene Derivatives and C60” link
32. Fursule, I. A.; Abtahi, A.; Watkins, C. B.; Graham, K. R.; Berron, B. J. J. Colloid Interface Sci. 2018,510, 86-94. “In situ crosslinking of surface-initiated ring opening metathesis polymerization of polynorbornene for improved stability” link
31. Zhao, X.; Xue, G.; Qu, G.; Singhania, V.; Zhao, Y.; Butrouna, K.; Gumyusenge, A.; Diao, Y.; Graham, K. R.; Li, H.; Mei, J. Macromolecules 2017,50, 6202-6209. “Complementary Semiconducting Polymer Blends: Influence of Side Chains of Matrix Polymers” link
30. Liang, Z.; Boland, M. J.; Butrouna, K.; Strachan, D. R.; Graham, K. R. J. Mater. Chem. A 2017, 5, 15891-15900. “Increased power factors of organic-inorganic nanocomposite thermoelectric materials and the role of energy filtering” link
29. Boehm, A. M.; Wieser, J.; Butrouna, K.; Graham, K. R. Org. Electron. 2017, 41, 9. “A New Photon Source for Ultraviolet Photoelectron Spectroscopy of Organic and Other Damage-Prone Materials” link
28.   Zhao, X.; Zhao, Y.; Ge, Q.; Butrouna, K.; Diao, Y.; Graham, K. R.; Mei, J. Macromolecules 2016, 49, 2601. “Complementary Semiconducting Polymer Blends: The Influence of Conjugation-Break Spacer Length in Matrix Polymers” link

27.   Liang, Z.; Graham, K. R.; ACS Appl. Mater. Interfaces 2015, 7, 21652. “Surface Modification of Silver Nanowires for Morphology and Processing Control in Composite Transparent Electrodes” link

Prior to the University of Kentucky

26. Ngongang Ndjawa, G. O.; Graham, K. R.; Mollinger, S.; Wu, D.; Hanifi, D.; Prasana, R.; Rose, B.; Dey, S.; Yu, L.; Brédas, J.-L.; McGehee, M. D.; Salleo, A.; Amassian, A. Adv. Energy Mater. 2017, Early View, DOI: 10.1002/aenm.201601995 “Open Circuit Voltage in Organic Solar Cells: The Impacts of Donor Semi-Crystallinity and Coexistence of Multiple Interfacial Charge Transfer Bands”
25. Graham, K. R.; Ngongang Ndjawa, G. O.; Conron, S. M.; Munir, R.; Vandewal, K.; Chen, J. J.; Sweetnam, S.; Thompson, M. E.; Salleo, A.; McGehee, M. D.; Amassian, A. Adv. Energy Mater. 2016, 6, 22. “The Roles of Structural Order and Intermolecular Interactions in Determining Ionization Energies and Charge-Transfer State Energies in Organic Semiconductors”
24.   Ngongang Ndjawa, G. O.; Graham, K. R.; Li, R.; Conron, S. M.; Erwin, P.; Chou, K. W.; Burkhard, G. F.; Zhao, K.; Hoke, E. T.; Thompson, M. E.; McGehee, M. D.; Amassian, A. Chem. Mater. 2015, 27, 5597. “Impact of Molecular Orientation and Spontaneous Interfacial Mixing on the Performance of Organic Solar Cells”
23.   Sweetnam, S.; Graham, K. R.; Ngongang Ndjawa, G. O.; Heumueller, T.; Bartelt, J. A.; Burke, T. M.; You, W.; Amassian, A.; McGehee, M. D. J. Am. Chem. Soc. 2014, 136, 14078. “Characterization of the Polymer Energy Landscape in Polymer:Fullerene Bulk Heterojunctions with Pure and Mixed Phases”
22.   Graham, K. R.; Cabanetos, C.; Jahnke, J. P.; Idso, M. N.; Laban, A. E.; Ngongang Ndjawa, G. O.; Vandewal, K.; Heumueller, T.; Salleo, A.; Chmelka, B. F.; Amassian, A.; Beaujuge, P. M.; McGehee, M. D.  J. Am. Chem. Soc. 2014, 136, 9608-9618.  “Importance of the Donor:Fullerene Intermolecular Arrangement for High-Efficiency Organic Photovoltaics”
21.   Vandewal, K.; Albrecht, S.;  Hoke, E. T.;  Graham, K. R.; Widmer, J.;  Douglas, J. D.;  Schubert, M.; Mateker, W. R.; Bloking, J. T.; Burkhard, G. F.; Sellinger, A.; Fréchet, J. M. J.; Amassian, A.; Riede, M. K.;  McGehee, M. D.; Neher, D.; Salleo, A. Nature Mater. 2014, 13, 63-68.“Efficient charge generation by relaxed charge-transfer states at organic interfaces”
20.   Stalder, R.; Mei, J.; Graham, K. R.; Estrada, L. A.; Reynolds, J. R. Chem. Mater. 2014, 26, 664-678. “Isoindigo, A Versatile Electron-Deficient Unit For High Performance Organic Electronics”
19.   Graham, K. R.; Erwin, P.; Nordlund, D.; Vandewal, K.; Li, R.; Ngongang Ndjawa, G. O.; Hoke, E. T.; Salleo, A.; Thompson, M. E.; McGehee, M. D.; Amassian. A. Adv. Mater.  2013, 25, 6076-6082. “Reevaluating the Role of Sterics and Electronic Coupling in Determining the Open Circuit Voltage of Organic Solar Cells”
18.   Bartelt, J. A.; Beiley, Z. M.; Hoke, E. T.; Mateker, W. R.; Douglas, J. D.; Collins, B. A.; Tumbleston, J. R.; Graham, K. R.; Amassian, A.; Ade, H.; Fréchet, J. M. J.; Toney, M. F.; and McGehee, M. D. Adv. Energy Mater. 2013, 3 (3), 364-374. “The Importance of Fullerene Percolation in the Mixed Regions of Polymer-Fullerene Bulk Heterojunction Solar Cells”
17.   Hoke, E. T.; Vandewal, K.; Bartelt, J. A.; Mateker, W. R.; Douglas, J. D.; Noriega, R.; Graham, K. R.; Fréchet, J. M. J.; Salleo, A.; McGehee, M. D. Adv. Energy Mater. 2013, 3 (2), 220. “Recombination in Polymer:Fullerene Solar Cells with Open-Circuit Voltages Approaching and Exceeding 1.0 V”
16.   Graham, K. R.; Stalder, R.; Patel, D.; Salazar, D. H.; Reynolds, J. R. ACS Appl. Mater. Interfaces. 2013, 5 (1), 63. “Morphology Control in Molecular Bulk-Heterojunction Photovoltaic Cells Through Tailor-Made Additives”
15.  Graham, K. R.; Stalder, R.; Mei, J.; Wieruszewski, P.; Hartel, M. J.; Mei, J.; So, F.; Reynolds, J. R. Adv. Funct. Mater. 2012, 22, 4801. “Improved Performance of Molecular Bulk-Heterojunction Photovoltaic Cells through Predictable Selection of Solvent Additives.”
14.   Aitken, B. S.; Wieruszewski, P. M.; Graham, K. R.; Reynolds, J. R.; Wagener, K. B.  ACS Macro Lett. 2012, 1(2), 324.  “Control of Charge-Carrier Mobility via In-Chain Spacer Length Variation in Sequenced Triarylamine Functionalized Polyolefins”
13.   Patel, D. G.; Graham, K. R.; Reynolds, J. R.  J. Mater. Chem. 2012, 22(7), 3004. “Diels-Alder Crosslinking for Dye Segregation and Multi-Layer Structures in Conjugated Polymer Devices: Towards Improvement of Device Efficiency”
12.   Aitken, B. S.; Wieruszewski, P. M.; Graham, K. R.; Reynolds, J. R.; Wagener, K. B.  Macromolecules 2011, 45(2), 705.  “Perfectly Regioregular Electroactive Polyolefins: Impact of Inter-Chromophore Distance on PLED EQE”
11.   Graham, K. R.; Yang, Y.; Sommer, J. R.; Shelton, A.; Schanze, K. S.; Xue, J.; Reynolds, J. R.; Chem. Mater. 2011, 23 (24), 5305. “Extended π-Conjugated Pt-Porphyrins for use in Near-Infrared Emitting Organic Light Emitting Diodes.”
10.   Ellinger, S. E.; Graham, K. R.; Shi, P.; Farley, R. T.; Steckler, T. T.; Brookins, R. N.; Taranekar, P.; Mei, J.; Padilha, L. A.; Ensley, T. R.; Hu, H.; Webster, S.; Hagan, D. J.; Van Stryland, E. W.; Schanze, K. S.; Reynolds, J. R.  Chem. Mater. 2011, 23 (17), 3805 “Donor-acceptor-donor based p-conjugated oligomers for near-IR emission”
9.     Amb, C. M.; Chen, S.; Graham, K. R.;  Subbiah, J.; Small, C. E.; So, F.; Reynolds, J. R. J. Am. Chem. Soc. 2011, 133 (26), 10062.  “Dithienogermole as a Fused Electron Donor in Bulk Heterojunction Solar Cells”
8.     Graham, K. R.; Mei, J.; Stalder, R.; Shim, J.; Steffy, F.; So, F.; Kippelen, B.; Reynolds, J. R. ACS Appl. Mater. Interfaces 2011, 3 (4), 1210.  “Polydimethylsiloxane as a Macromolecular Additive for Enhanced Performance of Molecular Bulk Heterojunction Organic Solar Cells”  Highlighted by Science.  Science 2012, 332, 285.
7.     Koldemir, U.; Graham, K. R.; Salazar, D. H.; McCarley, T.; Reynolds, J. R.  J. Mater. Chem. 2011, 21, 6480. “Electron Rich APFO Polymer with Dual Electrochromism and Electroluminescence” 
6.     Mei, J.; Graham, K. R.; Stalder, R.; Cheun, H.; Shim, J.; Yoshio, M.; Nuckolls, C.; Kippelen, B.; Castellano, R. K.; Reynolds, J. R. Chem. Mater. 2011, 23 (9), 2285.  “Self-Assembled Amphiphilic Diketopyrrolopyrrole-Based Oligothiophenes for Field-Effect Transistors and Solar Cells”
5.     Patel, D. G.; Ohnishi, Y.-Y.; Yang, Y.; Eom, S.-H.; Farley, R. T.; Graham, K. R.; Xue, J.; Hirata, S.; Schanze, K. S.; Reynolds, J. R. J. Polym. Phys. Part B., Polym. Phys. 2011, 49 (8), 557-565. “Conjugated Polymers for Pure UV Light Emission: Poly(meta-phenylenes)”
4.     Mei, J.; Aitken, B.; Graham, K. R.; Wagener, K. B.; Reynolds, J. R. Macromolecules  2010,43 (14), 5909.  “Regioregular electroactive polyolefins with precisely sequenced π-conjugated chromophores”
3.     Mei, J.; Graham, K. R.; Stalder, R.; Reynolds, J. R.  Org. Lett.  2010, 12 (4), 660.  “Synthesis of isoindigo-based oligothiophenes for molecular bulk heterojunction solar cells”
2.     Mortimer, R. J.; Graham, K. R.; Grenier, C. R. G.; Reynolds, J. R.  ACS Appl. Mater. Interfaces  2009, 1, 2269.  “Influence of the Film Thickness and Morphology on the Colorimetric Properties of Spray-Coated Electrochromic Disubstituted 3,4-Propylenedioxythiophene Polymers”
1.     Sommer, J. R.; Farley, R. T.; Graham, K. R.; Yang, Y.; Reynolds, J. R.; Xue, J.; Schanze, K. S.  ACS Appl. Mater. Interfaces  2009, 1, 274.  “Efficient Near-Infrared Polymer and Organic Light-Emitting Diodes Based on Electrophosphorescence from (Tetraphenyltetranaphtho[2,3]porphyrin)platinum(II)”