1. Jaewon Lee, Neetu Chopra, Debasis Bera, Sergey Maslov, Sang-Hyun Eom, Ying Zheng, Edward Wrzesniewski, Paul Holloway, Jiangeng Xue and Franky So, “Down-conversion white organic light-emitting diodes using microcavity structure”, Adv. Energy Mater. (2011) (DOI: 10.1002/aenm.201000014) Journal Cover
2. Galileo Sarasqueta, Kaushik Roy Choudhury, Jegadesan Subbiah, and Franky So, “Organic and Inorganic Blocking layers for solution-processed colloidal PbSe Nanocrystal infrared photodetectors”, Adv. Functional Mater. (2011) DOI: 10.1002/adfm.201001328
3. Mitchell McCarthy, Bo Liu, Ramesh Jayaraman, Stephen Gilbert, Do Young Kim, Franky So, and Andrew Rinzler, “Reorientation of the high mobility plane in pentacene-based carbon nanotube enabled vertical field effect transistors, ACS Nano 5, 291-298 (2011)
4. Lei Qian, Ying Zheng, Kaushik Roy Choudhury, Debasis Bera, Franky So, Jiangeng Xue, Paul Holloway, “Electroluminescence from light-emitting polymer/ZnO nanoparticle heterojunctions at sub-bandgap voltages”, Nano Today 5, 384-389 (2010)
5. Neetu Chopra, James S. Swensen, Evgueni Polikarpov, Lelia Cosimbescu, Franky So and Asanga Padmaperuma, “High efficiency and low roll-off blue phosphorescent OLEDs using mixed host architecture”, App. Phys. Lett. 97,033304 (2010)
6. Do Young Kim, Dong Woo Song, Neetu Chopra, Pieter De Somer, and Franky So, "Organic infrared up-conversion device”, Adv. Mater. 22, 2260-2263 (2010)
7. Galileo Sarasqueta, Kaushik Roy Choudhury% and Franky So, “Solvent treatment effect of PbSe quantum dot photodetectors”, Chemistry of Materials 22, 3496-3501 (2010)
8. Irfan, Juanjun Ding, Yongli Gao, Do Young Kim, Jegadesan Subbiah and Franky So, “Energy level evolution of molybdenum trioxide interlayer between indium tin oxide and organic semiconductor”, Appl. Phys. Lett. 96, 243307 (2010)
9. Jegadesan Subbiah, Kaushik Roy Choudhury, Stefan Ellinger, John Reynolds and Franky So, “Color Tunable π-Conjugated Polymers for Solar-Cell Applications: Engineering of Bandgap, Interface, and Charge Transport Properties, IEEE Journal of Selected Topics in Quantum Electronics 16(6), 1792-1800 (2010)
10. Pierre Beaujuge, Jegadesan Subbiah, Kaushik Roy Choudhury, Stefan Ellinger, Tracy MaCarley, John Reynolds and Franky So, “Structural-Performance Relationships in green dioxythiophene benzothiadiazole donor-acceptor copolymers for photovoltaic applications, Chemistry of Materials 22, 2093-2106 (2010)
11. Jegadesan Subbiah, D.Y. Kim, M. Hartel and Franky So, “MoO3/TFB double interlayer effect on polymer solar cells”, Appl. Phys. Lett. 96, 063303 (2010).
12. Irfan, H.J. Ding, Y.L. Gao, D.Y. Kim, J. Subbiah and F. So, “Energy Level evolution of molybdenum trioxide interlayer between indium tin oxide and organic semiconductor” Appl. Phys. Lett. 96, 073304 (2010)
13. Pierre Beaujuge, Jegadesan Subbiah, Kaushik Roy Choudhury, Stefan Ellinger, Tracy McCarley, Franky So, and John R. Reynolds “Green dioxthiophene-benzothiadiazole donor-acceptor copolymers for photovoltaics device applications”, Chemistry of Materials 22, 2093-2106 (2010).
14. Jegadesan Subbiah, Pierre Beaujuge, Kaushik Roy Choudhury, Song Chen, John R. Reynolds and Franky So, “Combined effects of MoO3 interlayer and PC70BM on polymer photovoltaic device performance” Organic Electronics 11, 955-958 (2010).
15. Jegadesan Subbiah, Do Young Kim, Michael Hartel and Franky So, “Double interlayer effects on organic PVs”, Appl. Phys. Lett. 96, 063303 (2010).
16. Kaushik Roy Choudhury, Dong Woo Song and Franky So, “Efficient solution-processed hybrid polymer-nanocrystal near infrared light-emitting diodes”, Organic Electronics, 11. 23-28 (2010).
17. M. James Harding, Dmitry Poplavskyy,V.-E. Choong, Franky So and Alasdair J. Campbell, “Variations in hole injection due to fast and slow interfacial traps in polymer light emitting diodes with interlayers”, Adv. Funct. Mater. 20, 119 (2010).
18. Franky So and Denis Kondokov, “Degradation mechanisms of organic light emitting diodes”, Adv. Mater. 22, 34 (2010) Journal Cover
19. Neetu Chopra, Jaewon Lee, Jiangeng Xue and Franky So, “High efficiency OLEDs for solid state lighting”, Invited paper, IEEE Tran. Electron. Dev. 57, 101-107, (2009).
20. Do Young Kim, Jegadesan Subbiah, Galileo Sarasqueta, Irfan, and Yongli Gao and Franky So, “The effect of molybdenum oxide on organic solar cells”, Appl. Phys. Lett. 95, 093304-1-093304-3 (2009)
21. Sang-Hyun Eom, Ying Zheng, Edward Wrzesniewski, Jaewon Lee, Neetu Chopra, Franky So and Jiangeng Xue, “White phosphorescent organic light emitting devices with dual triple-doped emissive layers”, Appl. Phys. Lett. 95, 153303-153305 (2009)
22. Sang-Hyun Eom, Ying Zheng, Edward Wrzesniewski, Jaewon Lee, Neetu Chopra, Franky So, and Jiangeng Xue, “Effect of electron injection and transport materials on efficiency of deep-blue phosphorescent organic light-emitting devices”, Organic Electron. 10, 686-191 (2009)
23. Neetu Chopra, Jaewon Lee, Ying Zheng, Sang-Hyun Eom, Jiangeng Xue and Franky So, “Investigating charge balance in blue phosphorescent organic light emitting diodes” ACS Appl. Mater. Interfaces 1, 1169-1172 (2009)
24. Evgueni Polikarpov, James Swensen, Neetu Chopra, Franky So, Asanga Padmaperuma, “An ambipolar phosphine oxide-based host for high power efficiency blue phosphorescent OLEDs”, Appl. Phys. Lett. 94, 223304-223306 (2009)
25. Jegadesan Subbiah, Pierre Beaujuge, Kaushik Roy Choudhury, Stefan Ellinger, John Reynolds, Franky So, “Efficient green solar cells via a chemically polymerizable donor-acceptor heterocyclic pentamer”, ACS Appl. Mater. Interfaces 1, 1154-1158 (2009), Journal Cover.
26. Do Young Kim, Yongli Gao and Franky So, “Aluminum Phthalocyanine Chloride/C60 Organic photovoltaic cells with high open circuit voltage”, Solar Energy Mater and Solar Cells 93, 1688-1691 (2009)
27. Huanjun Ding, Kiwan Park, Yongli Gao, Do Young Kim and Franky So, “Electronic Structure and interactions of LiF doped tri (8-hydroxyquinoline) aluminum, Chem. Phys. Lett. 92, 473 (2009)
28. Do Young Kim, Franky So, “SnPc:C60 bulk heterojunction organic photovoltaic cells with MoO3 interlayer”, Solar Energy Mater. and Solar Cells 93, 1452-1456 (2009)
29. K. Roy Choudhury, A. Gupta, X. Jiang, F. Amy, and F. So, “Highly Efficient Hole Injection using Novel Polymeric Anode Materials for Small Molecule Organic Light-emitting Diodes, Adv. Funct. Mater. 19, 491-496 (2008) Selected as Advances in Advance category.
31. N. Chopra, J. Lee, Y. Zheng, S-H Eom, J. Xue and F. So, “High efficiency blue phosphorescent organic light emitting device”, Appl. Phys. Lett. 93, 143307-143309 (2008)
32. S.-H. Eom, Y. Zheng, N. Chopra, J. Lee, F. So and J. Xue, “Low voltage and very high efficiency deep-blue phosphorescent organic light-emitting devices”, Appl. Phys. Lett. 93, 133309-133311 (2008)
33. G. Sarasqueta, K. Roy Choudhury, D.Y. Kim and F. So, “Novel organic/inorganic nanocomposites for high dielectric constant materials”, Appl. Phys. Lett. 93, 123305-123307 (2008)
34. Y. Zheng, S-H Eom, N. Chopra, J. Lee, F. So and J. Xue, “Efficient deep-blue phosphorescent organic light-emitting device with improved electron and exciton confinement”, Appl. Phys. Lett. 92, 223301-223303 (2008)
35. J. Lee, N. Chopra, and F. So, “Cavity effects on light extraction in organic light emitting devices”, Appl. Phys. Lett. 92, 033303-033305 (2008)
36. K. Roy Choulhury, J.H. Yoon, and F. So, “LiF as an n-dopant in tri(8-hydroxyquinoline) aluminum thin films”, Adv. Mater. 20, 1456-1259 (2008)
37. F. So, P.E. Burrows, and J. Kido, “Organic light emitting devices for solid state lighting”, MRS Bulletin, 33, 663-668 (2008), Invited paper.
38. B. Liu, M. McCarthy, Y. Yoon, D. Kim, Z. Wu, F. So, P.H. Holloway, J.R. Reynolds, J. Guo, and A.G. Rinzler, “Carbon nanotube enabled vertical field effect and light emitting transistors”, Adv. Mater. 20,1-4 (2008)
39. F. So, B. Krummacher, M.K. Mathai, D. Poplavskyy, S.A. Choulis and V.E. Choong, “Recent progress in solution processable organic light emitting devices”. J. Appl. Phys. 102, 091101-091103 (2007)
40. M.J Harding, D. Poplavskyy, V.E. Choong, A.J. Campbell and F. So, Organic Electronics, 9, 183-190 (2007)
41. A.C. Niemeyer, I.H. Campbell, F. So, B.K. Crone, “High quantum efficiency polymer photoconductors using interdigitated electrodes”, Appl. Phys. Lett. 91, 103504-103506 (2007)
42. B. Krummacher, M.K. Mathai, F. So, S.A. Choulis, and V.E. Choong, “Light extraction from solution-based processable electrophosphorescent organic light emitting diodes”, IEEE J. Selected Topic in Quantum Electronics, J. Display Tech. 3, 200-209 (2007)
43. B. Krummacher, V.E. Choong, M.K. Mathai, S.A. Choulis, F. So, F.J.T. Fiedler and M. Zachau, “Highly efficient white organic light emitting diode”, Appl. Phys. Lett. 88, 113506-113508 (2006)
44. B. Krummacher, M.K. Mathai, V.E. Choong, S.A. Choulis, F. So, “Influence of charge balance and microcavity effects on resultant efficiency of organic light emitting devices”, Organic. Electron. 7, 313-317 (2006)
45. S. Choulis, V. Choong, M. Mathai and F. So, “Highly efficient organic electroluminescent device with modified cathode”, Appl. Phys. Lett. 88, 203502-203504 (2006)
46. Stelios Choulis, Aditee Patwardhan, Vi-En Choong, Mathew Mathai and Franky So, “Interface modification to improve hole injection properties in organic electronic devices”, Adv. Functional Mater. 16, 1075-1079 (2006)
47. Dmitry Poplavskyy and Franky So, “Bipolar carrier transport in a conjugated polymer by admittance spectroscopy”, J. App. Phys. 99, 33707-33707-09 (2006)
48. B. Krummacher, V.E. Choong, M.K. Mathai, S.A. Choulis, F. So, F.J.T. Fiedler and M. Zachau, “Highly efficient white organic light emitting diode”, Appl. Phys. Lett. 88, 113506-113508 (2006)
49. B.C. Krummacher, M.K. Mathai, V. Choong, S. Choulis, and F. So, “General method to evaluate light extraction properties of organic electroluminescent devices”, J. Appl. Phys. 100, 054702-054710 (2006)
50. M. Mathai, Vi-En Choong, S. Choulis, B. Krummacher and F. So, “Highly efficient solution processed blue organic electrophosphorescence with 14 lm/W luminous efficacy”, Appl. Phys. Lett. 88, 243512-243514 (2006)
51. S. Choulis, V. Choong, M. Mathai and F. So, “The effect of interfacial layer on the performance of organic light emitting diodes”, Appl. Phys. Lett. 87, 113501-113505-11 (2005)
52. Dmitry Poplavskyy and Franky So, “Bipolar charge transport, injection, and trapping in a model green emitting polyfluorene copolymer”, J. App. Phys. 98, 14501-14501-11 (2005)
53. Vi-En Choong, Jay Curless and Franky So “Bipolar Transport Organic Light Emitting Diodes with Enhanced Reliability”, Appl. Phys. Lett. 76, 958-960 (2000).
54. J. Curless, Vi-En Choong and Franky So, “Efficient and Durable Organic Alloys for Electroluminescence Displays”, J. Phys. D, 33(7), 760-764 (2000)
55. J. Curless, Vi-En Choong and Franky So, “Reliability Comparison of BTEL and Bilayer Organic LEDs”, Synthetic Metals, 107, 53-57 (1999)
56. J. H. Xu, J. Shen, F. So, M. Kim and H.C. Lee, “Carrier transport mechanisms in organic electroluminescent devices, Compound Semiconductors, 156, 379-382 (1998)
57. Vi-En Choong, Jay Curless, Franky So, Jun Shen and Jie Yang, “Organic Light Emitting Diodes with a Bipolar Transport Layer”, Appl. Phys. Lett., 75, 172-174 (1999).
58. S.R. Forrest, P.E. Burrows, E.I. Haskel and F.F. So, “Ultra-high Vacuum Quasi-epitaxial Growth of Model van der Waals Thin Films”, Phys. Rev. B49, 11309-11314 (1994)
59. R. A. Norwood, D. R. Holcomb and F. So "Polymers for nonlinear optics: absorption, two-photon absorption and photodegradation," Nonlinear Optics 6, 193-196 (1993).
60. S. R. Forrest, P. E. Burrows, E. I. Haskal, and F. F. So “Ultrahigh-vacuum Quasi-Epitaxial Growth of Model van der Waals Thin Films: Experiments”, Phys. Rev. B 49, 11309-11314 (1994)
61. F.F. So and S.R. Forrest, “Electrical and Optical Properties of Crystalline Organic Thin Films by Organic Molecular Beam Deposition”, Mol. Cryst. Liq. Cryst. Sci. Technology B2, 205-209 (1992)
62. E.I. Haskel, F.F. So, P.E. Burrows and S. R. Forrest, “Evolution of Quasi-Epitaxial Growth of Crystalline Organic Semiconductors on Graphite”, Appl. Phys. Lett 60, 3223-3225 (1992)
63. F.F. So and S.R. Forrest, “Evidence for Exciton Confinement in Organic Multiple Quantum Wells”, Phys. Rev. Lett. 66, 2649-2653 (1991)
64. D.Y. Zang, F.F. So and S.R. Forrest, “Giant Anisotropies in Dielectric Properties of Quasi-Epitaxial Grown Crystalline Organic Semiconductor Thin Films”, Appl. Phys. Lett. 59, 823-825 (1991)
65. D.Y. Zang, Y.Q. Shi, F.F. So and S.R. Forrest, “Optical Waveguides in Crystalline Organic Thin Films”, Appl. Phys. Lett. 58, 562-564 (1991)
66. F.F. So, S.R. Forrest, Y.Q. Shi and W.H. Steier, “Quasi-Epitaxial Growth of Organic Multiple Quantum Well Structures by Organic Molecular Beam Deposition”, Appl. Phys. Lett. 56, 674-676 (1990)
67. F.F. So and S.R. Forrest, “Organic-on Inorganic Semiconductor Photodetector”, IEEE Trans. Electron Devices 36, 66-69 (1989)
68. S. R. Forrest, L.Y. Leu, F. F. So and W.Y. Yoon, “Optical and Electrical Properties of Isotype Crystalline Molecular Organic Heterojunctions”, J. Appl. Phys. 66, 5908-5912 (1989)
69. F.F. So and S.R. Forrest, “Organic-on-Inorganic Semiconductor Heterojunctions: Energy-Band Discontinuities, Quasi-Fermi Levels and Carrier Velocities”, J. Appl. Phys. 64, 399-405 (1988)
70. F.F. So and S.R. Forrest, “Dependence of the Electrical Characteristics of Organic-on-Inorganic Semiconductor Contact Barrier Diodes on Organic Thin Film Composition”, J. Appl. Phys. 63, 442-446 (1988)
