Embedded Files
Highlights:
Heekyung's battery paper featured on the cover of J. Mater. Chem. C. (Lithium / conjugated molecule hybrid redox-flow battery)
Jae Young's electronic nos paper published in Appl. Mater. Today (PVA membranes to vastly increase the selectivity of organic vapor sensors)
Dr. Khan's paper published in Nature Communications. (fluorescent organic nano-dots)
Prof. Walker included in Nature publication. (world efficiency record for perovskite solar cells)
Yohan's paper published in Advanced Functional Materials. (high efficiency solar cells using a copper polyelectrolyte charge transport layer, featured as a cover image)
All Publications:
1. “Photoelectron Spectroscopic Study of the Interfacial Electronic Structures of Metal-Ion Containing Polyelectrolytes on ITO Substrates” Jin Hee Lee, Yeasin Khan, Seunghwan Kim, Ae Jin Choi, Bright Walker, Soohyung Park and Jung Hwa Seo Adv. Funct. Mater. 2315074 (2024). https://doi.org/10.1002/adfm.202315074
2. “Ambipolar Charge Injection and Bright Light Emission in Hybrid Oxide/Polymer Transistors Doped with Poly (9‐Vinylcarbazole) Based Polyelectrolytes” Yu Jung Park, Hee Kyung Hwang, Yejoo Park, Ju‐Hyeon Lee, Jin Hee Lee, Bright Walker, Han‐Ki Kim and Jung Hwa Seo Adv. Mater. Technol. 2302207 (2024). https://doi.org/10.1002/admt.202302207
3. “Ag: PSS Polyelectrolyte/PTB7 Bilayers as Efficient Hole Transport Layers for Perovskite Solar Cells” Faiza Shoukat, Azmat Ali, Jin Hee Lee, Yeasin Khan, Bright Walker, Jung Hwa Seo Synth. Met. 117679 (2024). https://doi.org/10.1016/j.synthmet.2024.117679
4. “Driving Triplet State Population in Benzothioxanthene Imide Dyes: Let's twist!” Dario Javier Puchán Sánchez, Pierre Josse, Nathan Plassais, Geonwoo Park, Yeasin Khan, Yejoo Park, Mathilde Seinfeld, Antoine Guyard, Magali Allain, Frédéric Gohier, Lhoussain Khrouz, Dominik Lungerich, Hyun S Ahn, Bright Walker, Cyrille Monnereau, Tangi Le Bahers, Clement Cabanetos Chem. Eur. J. e202400191 (2024). https://doi.org/10.1002/chem.202400191
5. “Practical organic electronic noses using semi-permeable polymer membranes” Jae Young Kim, Farjana Haque, Jae Hyun Lee, Yu Jung Park, Jung Hwa Seo, Mallory Mativenga, Bright Walker Appl. Mater. Today 37, 102137 (2024). https://doi.org/10.1016/j.apmt.2024.102137
6. “Improved Hole Injection in Hybrid Light-Emitting Transistors Incorporating Lithium and Copper(II) Poly(Styrene Sulfonate)” Yu Jung Park, Subin Park, Jiwon Sim, Jin Hee Lee, Yejoo Park, Aeran Song, Kwun‐Bum Chung, Bright Walker, Jung Hwa Seo, Adv. Mater. Interfaces 10, 13, 2300261 (2023). https://doi.org/10.1002/admi.202300261
7. “Non-fullerene acceptor based photoelectric material for retinal prosthesis” Hyunsun Song, Hyeonhee Roh, Jae Young Kim, Byung Chul Lee, Bright Walker, Maesoon Im Micro Nano Syst. Lett. 11, 10 (2023). https://doi.org/10.1186/s40486-023-00177-8
8. “A new G-quadruplex-specific photosensitizer inducing genome instability in cancer cells by triggering oxidative DNA damage and impeding replication fork progression“ Marco Deiana, José María Andrés Castán, Pierre Josse, Abraha Kahsay, Darío Puchán Sánchez, Korentin Morice, Natacha Gillet, Ranjitha Ravindranath, Ankit Kumar Patel, Pallabi Sengupta, Ikenna Obi, Eva Rodriguez-Marquez, Lhoussain Khrouz, Elise Dumont, Laura Abad Galán, Magali Allain, Bright Walker, Hyun Seo Ahn, Olivier Maury, Philippe Blanchard, Tangui Le Bahers, Daniel Öhlund, Jonas von Hofsten, Cyrille Monnereau, Clément Cabanetos, Nasim Sabouri Nucleic Acids Res., 51, 6264-6285 (2023). https://doi.org/10.1093/nar/gkad365
9. “Solution‐Processed Metal Ion Polyelectrolytes as Hole Transport Materials for Efficient Inverted Perovskite Solar Cells” Faiza Shoukat, Ju Hwan Kang, Yeasin Khan, Yu Jung Park, Jin Hee Lee, Bright Walker, Jung Hwa Seo Adv. Mater. Interfaces 10, 2300043 (2023). https://doi.org/10.1002/admi.202300043
10. “N-Annulation of the BTI Rylene Imide Organic Building Block: Impact on the Optoelectronic Properties of π-Extended Molecular Structures” José María Andrés Castán, Sana Abidi, Tatiana Ghanem, Saad Touihri, Philippe Blanchard, Gregory C Welch, Yulian Zagranyarski, Julien Boixel, Bright Walker, Pierre Josse, Clément Cabanetos Colorants 2, 1, 22-30 (2022). https://doi.org/10.3390/colorants2010002
11. “Benzothioxanthene dicarboximide as a tuneable electrogenerated chemiluminescence dye” Alice L Dauphin, José María Andrés Castán, Jing Yu, Philippe Blanchard, Neso Sojic, Hyun S Ahn, Bright Walker, Clément Cabanetos, Laurent Bouffier ChemElectroChem 9, 24, e202200967 (2022). https://doi.org/10.1002/celc.202200967.
12. “Stable ZnS Electron Transport Layer for High-Performance Inverted Cadmium-Free Quantum Dot Light-Emitting Diodes” Nagarjuna Naik Mude, Yeasin Khan, Truong Thi Thuy, Bright Walker, Jang Hyuk Kwon ACS Appl. Mater. Interfaces, 14, 50, 55925-55932 (2022). https://doi.org/10.1021/acsami.2c14711.
13. “Manipulated interface for enhanced energy cascade in quasi-2D blue perovskite light-emitting diodes” Yun Seop Shin, Chan Beom Park, Aniruddha Adhikari, Yung Jin Yoon, Hye Won Cho, Jung Geon Son, Jongdeuk Seo, Taehee Song, Woojin Lee, Jiwoo Yeop, Jae Won Kim, Minsik Gong, Bright Walker, Oh-Hoon Kwon, Gi-Hwan Kim, Jin Young Kim ACS Energy Lett., 7, 10, 3345-3352 (2022). https://doi.org/10.1021/acsenergylett.2c01785.
14. “Understanding interfacial energy structures in organic solar cells using photoelectron spectroscopy: A review” Ju Hwan Kang, Jin Hee Lee, Bright Walker, Jung Hwa Seo, Gap Soo Chang J. Appl. Phys., 132, 5 (2022). https://doi.org/10.1063/5.0091960.
15. “Synthesis of fluorescent organic nano-dots and their application as efficient color conversion layers” Yeasin Khan, Soonjae Hwang, Ramanaskanda Braveenth, Young Hun Jung, Bright Walker* and Jang Hyuk Kwon* Nat. Commun., 13, 1801 (2022). https://doi.org/10.1038/s41467-022-29403-4.
16. “A copper-based 2D hybrid perovskite solar absorber as a potential eco-friendly alternative to lead halide perovskites” Intissar Hamdi, Yeasin Khan, Fatma Aouaini, Jung Hwa Seo, Hyun-Joo Koo, Mark M Turnbull, Bright Walker* and Houcine Naïli* J. Mater. Chem. C, 10, 3738-3745 (2022). doi: 10.1039/d1tc05047h.
17. “Organic cation–polystyrene sulfonate polyelectrolytes as hole transporting interfacial layers in perovskite solar cells” Yeasin Khan, Yohan Ahn, Ju Hwan Kang, Azmat Ali, Yu Jung Park, Bright Walker* and Jung Hwa Seo Appl. Surf. Sci., 588, 152826 (2022). https://doi.org/10.1016/j.apsusc.2022.152826.
18. “Influence of pH-Neutral Lithium Polystyrenesulfonate Polyelectrolyte on the Energy Band Structure and Performance of Organic Solar Cells” Merve Nur Ekmekci, Ju Hwan Kang, Yeasin Khan, Jung Hwa Seo and Bright Walker* Mater. Adv., 3, 2123-2130 (2022). doi: 10.1039/d1ma00913c.
19. “Highly efficient hybrid light-emitting transistors incorporating MoO x/Ag/MoO x semi-transparent electrodes “ Yu Jung Park, Ae Ran Song, Kwun-Bum Chung, Tae-Youb Kim, Bright Walker* and Jung Hwa Seo J. Mater. Chem. C, 10, 880-885 (2022). doi: 10.1039/d1tc04674h.
20. “A pH‐Neutral Polyelectrolyte Hole Transport Layer for Improved Energy Band Structure at the Anode/PTB7 Junction and Improved Solar Cell Performance” Ju Hwan Kang, Amit Kumar Harit, Ji-Eun Jeong, Han Young Woo, Jung Hwa Seo and Bright Walker* Sol. RRL, 5, 2100521 (2021). https://doi.org/10.1002/solr.202100521.
21. “Lithium Polystyrene Sulfonate as a Hole Transport Material in Inverted Perovskite Solar Cells” Kausar Ali Khawaja, Yeasin Khan, Yu Jung Park, Jin Hee Lee, Ju Hwan Kang, Kiwoong Kim, Yeonjin Yi, Jung Hwa Seo and Bright Walker* Chem. Asian J. 16, 3151 (2021). https://doi.org/10.1002/asia.202100803.
22. “A Simple Cu(II) Polyelectrolyte as a Method to Increase the Work Function of Electrodes and Form Effective p-Type Contacts in Perovskite Solar Cells” Azmat Ali, Yohan Ahn, Kausar Ali Khawaja, Ju Hwan Kang, Yu Jung Park, Jung Hwa Seo and Bright Walker* Adv. Funct. Mater. 31, 2009246 (2021) https://doi.org/10.1002/adfm.202009246.
23. “Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells” Jaeki Jeong, Minjin Kim, Jongdeuk Seo, Haizhou Lu, Paramvir Ahlawat, Aditya Mishra, Yingguo Yang, Michael A. Hope, Felix T. Eickemeyer, Maengsuk Kim, Yung Jin Yoon, In Woo Choi, Barbara Primera Darwich, Seung Ju Choi, Yimhyun Jo, Jun Hee Lee, Bright Walker, Shaik M. Zakeeruddin, Lyndon Emsley, Ursula Rothlisberger, Anders Hagfeldt, Dong Suk Kim, Michael Grätzel and Jin Young Kim Nature, 592, 381-385 (2021) https://doi.org/10.1038/s41586-021-03406-5.
24. “Exploiting Ternary Blends to Accurately Control the Coloration of Semitransparent, Non-Fullerene, Organic Solar Cells” Na Gyeong An, Taeho Lee, Jungwoo Heo, Jae Won Kim, Seyeong Song, Woojin Lee, Bright Walker*, Eunhee Lim and Jin Young Kim Sol. RRL, 5: 2000742 (2021) https://doi.org/10.1002/solr.202000742.
25. “Cu/graphene hybrid transparent conducting electrodes for organic photovoltaic devices” Ju Hwan Kang, Sukyung Choi, Yu Jung Park, Jin Sung Park, Nam Sung Cho, Shinuk Cho, Bright Walker*, Dong Soo Choi, Jin-Wook Shin and Jung Hwa Seo Carbon 171, 341-349 (2021) https://doi.org/10.1016/j.carbon.2020.08.055.
26. “Ionic Moieties in Organic and Hybrid Semiconducting Devices: Influence on Energy Band Structure and Function” Yeasin Khan, Yohan Ahn, Jung Hwa Seo and Bright Walker* J. Mater. Chem. C 8, 13953-13971 (2020) https://doi.org/10.1039/D0TC03398G.
27. “Dichroic Sb2O3/Ag/Sb2O3 Electrodes for Colorful Semitransparent Organic Solar Cells” Seyeong Song, Hye Won Cho, Jaeki Jeong, Yung Jin Yoon, Song Yi Park, Suhee Song, Byung Hoon Woo, Young Chul Jun, Bright Walker* and Jin Young Kim Solar RRL 4, 2000201 (2020) https://doi.org/10.1002/solr.202000201.
28. “Modeling and implementation of tandem polymer solar cells using wide‐bandgap front cells” Seo‐Jin Ko, Hyosung Choi, Quoc Viet Hoang, Chang Eun Song, Pierre‐Olivier Morin, Jungwoo Heo, Mario Leclerc, Sung Cheol Yoon, Han Young Woo, Won Suk Shin, Bright Walker* and Jin Young Kim Carbon Energy 2, 131– 142 (2020) https://doi.org/10.1002/cey2.20.
29. “Aesthetic and Colorful: Dichroic Polymer Solar Cells Using High-Performance Fabry-Pérot Etalon Electrodes with a Unique Sb2O3 Cavity” Hye Rim Yeom, Seyeong Song, Song Yi Park, Hwa Sook Ryu, Jae Won Kim, Jungwoo Heo, Hye Won Cho, Bright Walker, Seo-Jin Ko, Han Young Woo and Jin Young Kim Nano Energy 77, 105146 (2020) https://doi.org/https://doi.org/10.1016/j.nanoen.2020.105146.
30.
“Light-Emitting Transistors with High Color Purity Using Perovskite Quantum Dot Emitters” Yu Jung Park, Minseong Kim, Aeran Song, Jin Young Kim, Kwun-Bum Chung, Bright Walker, Jung Hwa Seo and Dong Hwan Wang ACS Appl. Mater. Interfaces 12, 35175−35180 (2020) https://doi.org/10.1021/acsami.0c05537.
31. “Cationic polyelectrolytes as convenient electron extraction layers in perovskite solar cells” Kang, Ju Hwan, Yu Jung Park, Yeasin Khan, Yohan Ahn, Jung Hwa Seo and Bright Walker Dyes and Pigments 182, 108634 (2020) https://doi.org/10.1016/j.dyepig.2020.108634.
32. “Influence of film thickness on the electronic band structure and optical properties of P-I-N CH3NH3PbI3-xClx perovskite solar cells” Azmat Ali, Myoung Joo Cha, Ju Hwan Kang, Yu Jung Park, Jung Hwa Seo, and Bright Walker Adv. Eng. Mater. 2000185 (2020) https://doi.org/10.1002/adem.202000185.
33. “Tungsten-Doped Zinc Oxide and Indium–Zinc Oxide Films as High-Performance Electron-Transport Layers in N–I–P Perovskite Solar Cells” Ju Hwan Kang, Yu Jung Park, Myung Joo Cha, Yeonjin Yi, Aeran Song, Kwun-Bum Chung, Jung Hwa Seo and Bright Walker Polymers 12, 737 (2020) https://doi.org/10.3390/polym12040737.
34. “Waterproof Perovskites: High Fluoresence Quantum Yield and Stability from a Methylammonium Lead Bromide / Formate Mixture in Water” Yeasin Khan, Yohan Ahn, Hyuna Lee, Jaeki Jeong, Yun Seop Shin, Je Seung Lee, Jang Hyuk Kwon, Jin Young Kim, Hoon Sik Kim, Jung Hwa Seo and Bright Walker J. Mater. Chem. C, 8, 5873-5881 (2020) https://doi.org/10.1039/D0TC00383B.
35. “Hybrid Lead-Halide Polyelectrolytes as Interfacial Electron Extraction Layers in Inverted Organic Solar Cells” Jin Hee Lee, Yu Jung Park, Jung Hwa Seo and Bright Walker, Polymers 12, 743 (2020) https://doi.org/10.3390/polym12040743.
36.
“Effect of Plasmonic Ag Nanoparticles on the Performance of Inverted Perovskite Solar Cells” Azmat Ali, Ju Hwan Kang, Jung Hwa Seo and Bright Walker Adv. Eng. Mater. 22, 1900976 (2019) https://doi.org/10.1002/adem.201900976.
37. “Pseudohalides in Lead‐Based Perovskite Semiconductors” Bright Walker, Gi‐Hwan Kim, Jin Young Kim Adv. Mater. 31 (2019) 1807029 https://doi.org/10.1002/adma.201807029.
38. “Hybrid ZnON–Organic Light Emitting Transistors with Low Threshold Voltage < 5 V” Yu Jung Park, AeRan Song, Bright Walker, Jung Hwa Seo, Kwun‐Bum Chung Adv. Optical Mater. 7, 1801290 (2019) https://doi.org/10.1002/adom.201801290.
39. “Selenite-Catalyzed Oxidative Carbonylation of Alcohols to Dialkyl Carbonates” Yeasin Khan, Cheong Il Chung, Jin Joo Oh, Thanh Tung Nguyen, Hye Jin Lee, Minserk Cheong, Bright Walker, Hoon Sik Kim, Yong Jin Kim Appl. Catal. B-Environ. 242, 460 (2019) https://doi.org/10.1016/j.apcatb.2018.10.026.
40. “Morphology-Dependent Hole Transfer Under Negligible HOMO Difference in Non-Fullerene Acceptor-Based Ternary Polymer Solar Cells” Taehyo Kim, Jungwoo Heo, Ji Young Lee, Yung Jin Yoon, Tack Ho Lee, Yun Seop Shin, In-Sik Kim, Hyojung Kim, Mun Seok Jeong, In-Wook Hwang, Bright Walker, Pil Sung Jo, Bogyu Lim, Jin Young Kim ACS Appl. Mater. Interfaces 11, 7208 (2019) https://doi.org/10.1021/acsami.8b20884.
41. “Effect of Counter-Ions on The Properties and Performance of Non-Conjugated Polyelectrolyte Interlayers in Solar Cell and Transistor Devices” Ju Hwan Kang, Yu Jung Park, Myung Joo Cha, Yeonjin Yi, Aeran Song, Kwun-Bum Chung, Jung Hwa Seo, Bright Walker RSC Adv. 9, 20670 (2019) https://doi.org/10.1039/C9RA04299G.
42. “Synergistic Combination of Amorphous Indium Oxide with Tantalum Pentoxide for Efficient Electron Transport in Low-Power Electronics” J. Mater. Chem. C (2019) 7, 4559 https://doi.org/10.1039/C9TC00054B.
43. “Depth-Dependent Electronic Band Structure at the Au/CH3NH3PbI3−xClx Junction” Myung Joo Cha, Yu Jung Park, Jung Hwa Seo, Bright Walker Phys. Chem. Chem. Phys. 21, 14541 (2019) https://doi.org/10.1039/C9CP00834A. Selected cover image.
44. “Non-Halogenated Diphenyl-Chalcogenide Solvent Processing Additives For High-Performance Polymer Bulk-Heterojunction Solar Cells” Song Yi Park, Seyeong Song, Yung Jin Yoon, Tack Ho Lee, Na Gyeong An, Bright Walker,* Jin Young Kim RSC Adv. 8, 39777-39783 (2018) https://doi.org/10.1039/C8RA08317G.
45. “Implementation of Low-Power Electronic Devices Using Solution-Processed Tantalum Pentoxide Dielectric” Jungwoo Heo, Song Yi Park, Jaewon Kim, Seyeong Song, Yung Jin Yoon, Jaeki Jung, Hyungsu Jang, Kang Taek Lee, Junghwa Seo, Bright Walker, Jin Young Kim Adv. Funct. Mater. 28, 1704215 (2018) https://doi.org/10.1002/adfm.201704215.
46. “Reversible, Full-Color Luminescence by Post-treatment of Perovskite Nanocrystals” Yung Jin Yoon, Kang Taek Lee, Tae Kyung Lee, Su Hwan Kim, Yun Seop Shin, Bright Walker, Song Yi Park, Jungwoo Heo, Junghoon Lee, Sang Kyu Kwak, Gi-Hwan Kim, Jin Young Kim Joule 2, 2105 (2018) https://doi.org/10.1016/j.joule.2018.07.012.
47. “Nanoparticle‐Enhanced Silver‐Nanowire Plasmonic Electrodes for High‐Performance Organic Optoelectronic Devices” Taehyo Kim, Saewon Kang, Jungwoo Heo, Seungse Cho, Jae Won Kim, Ayoung Choe, Bright Walker, Ravi Shanker, Hyunhyub Ko, Jin Young Kim Adv. Mater. 30, 1800659 (2018) https://doi.org/10.1002/adma.201800659.
48. “Formamidinium-Based Planar Heterojunction Perovskite Solar Cells with Alkali Carbonate-Doped Zinc Oxide Layer” Jaeki Jeong, Haeyeon Kim, Yung Jin Yoon, Bright Walker, Seyeong Song, Jungwoo Heo, Song Yi Park, Jae Won Kim, Gi-Hwan Kim, Jin Young Kim RSC Adv. 8, 24110 (2018) https://doi.org/10.1039/C8RA02637H.
49. “Alkoxybenzothiadiazole-based Fullerene and Nonfullerene Polymer Solar Cells with High Shunt Resistance for Indoor Photovoltaic Applications” Song Yi Park, Yuxiang Li, Jaewon Kim, Tack Ho Lee, Bright Walker, Han Young Woo, Jin Young Kim ACS Appl. Mater. Interfaces 10, 3885 (2018) https://doi.org/10.1021/acsami.7b18152.
50. “Peroptronic Devices: Perovskite-Based Light-Emitting Solar Cells” Hak-Beom Kim, Yung Jin Yoon, Jaeki Jeong, Jungwoo Heo, Hyungsu Jang, Jung Hwa Seo, Bright Walker, Jin Young Kim Energy Environ. Sci., 10, 1950 (2017) https://doi.org/10.1039/C7EE01666B.
51. “Improved Performance in n‐Type Organic Field‐Effect Transistors via Polyelectrolyte‐Mediated Interfacial Doping” Yu Jung Park, Myoung Joo Cha, Yung Jin Yoon, Shinuk Cho, Jin Young Kim, Jung Hwa Seo, Bright Walker Adv. Electronic Mater. 3, 1700184 (2017), https://doi.org/10.1002/aelm.201700184. Selected Cover Article
52. “Fluorine Functionalized Graphene Nano Platelets for Highly Stable Inverted Perovskite Solar Cells” Gi-Hwan Kim, Hyungsu Jang, Yung Jin Yoon, Jaeki Jeong, Song Yi Park, Bright Walker, In-Yup Jeon, Yimhyun Jo, Hyun Yoon, Minjin Kim, Jong-Beom Baek, Dong Suk Kim, Jin Young Kim Nano Lett., 17, 6385 (2017), https://doi.org/10.1021/acs.nanolett.7b03225.
53. “Efficiency Exceeding 11% in Tandem Polymer Solar Cells Employing High Open‐Circuit Voltage Wide‐Bandgap π‐Conjugated Polymers” Seyeong Song, Kakaraparthi Kranthiraja, Jungwoo Heo, Taehyo Kim, Bright Walker, Sung‐Ho Jin, Jin Young Kim Adv. Energy Mater. 7, 1700782 (2017), https://doi.org/10.1002/aenm.201700782.
54. “Optically Tunable Plasmonic 2-Dimensional Ag Quantum Dot Arrays for Optimal Light Absorption in Polymer Solar Cells” Seyeong Song, Jungwoo Heo, Tae Kyung Lee, Soojin Park, Bright Walker, Sang Kyu Kwak, Jin Young Kim J. Phys. Chem. C, 121, 17569 (2017), https://doi.org/10.1021/acs.jpcc.7b03763.
55. “Effect of Heterocyclic Anchoring Sequence on the Properties of Dithienogermole-Based Solar Cells” Bright Walker, Daehee Han, Mijin Moon, Song Yi Park, Ka-Hyun Kim, Jin Young Kim, Changduk Yang ACS Appl. Mater. Interfaces, 9, 7091 (2017), https://doi.org/10.1021/acsami.6b14804.
56. “A universal processing additive for high-performance polymer solar cells” Tack Ho Lee, Song Yi Park, Bright Walker, Seo-Jin Ko, Jungwoo Heo, Han Young Woo, Hyosung Choi, Jin Young Kim RSC Adv., 7, 7476 (2017), https://doi.org/10.1039/C6RA27944A.
57. “Interfacial engineering for highly efficient organic solar cells” Bright Walker, Hyosung Choi, Jin Young Kim, Curr. Appl. Phys. 17, 370 (2016), DOI 10.1016/j.cap.2016.12.007.
58. “High-efficiency, hybrid Si/C60 heterojunction solar cells” Myoung Hee Yun, Jae Won Kim, Song Yi Park, Dong Suk Kim, Bright Walker, Jin Young Kim, J. Mater. Chem. A. 4, 16410 (2016) https://doi.org/10.1039/C6TA02248K.
59. “Clean thermal decomposition of tertiary-alkyl metal thiolates to metal sulfides: environmentally-benign, non-polar inks for solution-processed chalcopyrite solar cells” Jungwoo Heo, Gi-Hwan Kim, Jaeki Jeong, Yung Jin Yoon, Jung Hwa Seo, Bright Walker, Jin Young Kim Sci. Rep. 6, 36608 (2016), https://doi.org/ 10.1038/srep36608.
60. “Photocurrent Extraction Efficiency Near Unity in a Thick Polymer Bulk Heterojunction” Bright Walker,║ Seo-Jin Ko,║ Thanh Luan Nguyen,║ Hyosng Choi, Jason Seifter, Mohammad A. Uddin, Taehyo Kim, Seongbum Kim, Jungwoo Heo, Gi-Hwan. Kim, Shinuk Cho, Alan J. Heeger, Han Young Woo and Jin Young Kim Adv. Funct. Mater. 26, 3324 (2016), https://doi.org/10.1002/adfm.201505556.
61. “Ternary Halide Perovskites for Highly Efficient Solution-Processed Hybrid Solar Cells” Jaeki Jeong, Hak-Beom Kim, Haeyeon Kim, Bright Walker, Seyeong Song, Jungwoo Heo, Yung Jin Yoon, Yimhyun Jo, Hyosung Choi, Gi-Hwan Kim, Dong Suk Kim, Jin Young Kim ACS Energy Lett. 1, 712 (2016), https://doi.org/10.1021/acsenergylett.6b00281.
62. “Effect of alkyl chain topology on the structure, optoelectronic properties and solar cell performance of thienopyrroledione-cored oligothiophene chromophores” Bright Walker, Seungjib Yum, Bomee Jang, Jihyeon Kim, Taehyo Kim, Jin Young Kim, Han Young Woo RSC Advances, 6, 77655 (2016), https://doi.org/10.1039/C6RA17096J.
63. “Investigation of Charge Carrier Behavior in High Performance Ternary Blend Polymer Solar Cells“ Tack Ho Lee, Mohammad Afsar Uddin, Chengmei Zhong, Seo‐Jin Ko, Bright Walker, Taehyo Kim, Yung Jin Yoon, Song Yi Park, Alan J Heeger, Han Young Woo, Jin Young Kim Adv. Energy Mater. 6, 1600637 (2016), https://doi.org/10.1002/aenm.201600637.
64. “Solution-processed, inverted organic solar cells with bilayered inorganic/organic electron extraction layers” Jung Suk Lee, Myoung Joo Cha, Yu Jung Park, Jin Young Kim, Jung Hwa Seo, Bright Walker RSC Advances 6, 36561-36567 (2016), https://doi.org/10.1039/C5RA27077D.
65. “Solution-processible organic-inorganic hybrid bipolar field-effect transistors” Gil Jo Chae, Kang Dae Kim, Shinuk Cho, Bright Walker, Jung Hwa Seo J. Kor. Phys. Soc. 68, 889-895 (2016), DOI:10.3938/jkps.68.889.
66. “Capillary Printing of Highly Aligned Silver Nanowire Transparent Electrodes for High-Performance Optoelectronic Devices” Saewon Kang, Taehyo Kim, Seungse Cho, Youngoh Lee, Ayoung Choe, Bright Walker, Seo-Jin Ko, Jin Young Kim, Hyunhyub Ko Nanoletters 15, 7933-7942 (2015), https://doi.org/10.1021/acs.nanolett.5b03019.
67. “Control of Charge Dynamics via Use of Nonionic Phosphonate Chains and Their Effectiveness for Inverted Structure Solar Cells” Gyoungsik Kim, Seyeong Song, Jungho Lee, Taehyo Kim, Tack Ho Lee, Bright Walker, Jin Young Kim, Changduk Yang Adv. Energy. Mater. 5, 1500844 (2015), https://doi.org/10.1002/aenm.201500844.
68. “Improved Performance in Flexible Organic Solar Cells via Optimization of Highly Transparent Silver Grid/Graphene Electrodes” Myoung Joo Cha, Sung Man Kim, Seong Jun Kang, Jung Hwa Seo, Bright Walker RSC Advances 5, 65646-65650 (2015), https://doi.org/10.1039/C5RA10838A.
69. “Enhanced Performance in Isoindigo Based Organic Small Molecule Field-Effect Transistors Through Solvent Additives” Yu Jung Park, Jung Hwa Seo, Walaa Elsawy, Bright Walker, Shinuk Cho, Jae-Suk Lee J. Mater. Chem. C 3, 9899 (2015), https://doi.org/10.1039/C5TC00605H.
70. “Small‐Bandgap Polymer Solar Cells with Unprecedented Short‐Circuit Current Density and High Fill Factor” Hyosung Choi, Seo‐Jin Ko, Taehyo Kim, Pierre‐Olivier Morin, Bright Walker, Byoung Hoon Lee, Mario Leclerc, Jin Young Kim, Alan J Heeger Adv. Mater. 27, 3318 (2015), https://doi.org/10.1002/adma.201501132.
71. “Synergistic Photocurrent Addition in Hybrid Quantum Dot: Bulk Heterojunction Solar Cells” Gi-Hwan Kim, Bright Walker, David Zhitomirsky, Jungwoo Heo, Seo-Jin Ko, Jongnam Park, Edward H. Sargent, Jin Young Kim Nano Energy 13, 491 (2015), doi:10.1016/j.nanoen.2015.03.025.
72. “Thienoisoindigo (TIIG)-Based Small Molecules for Understanding of Structure-Property-Device-Performance Correlations” Hyojin Kang, Suyeon An, Bright Walker, Seyeong Song, Taehyo Kim, Jin Young Kim, Changduk Yang J. Mater. Chem. A, 3, 5951 (2015), doi:10.1039/C5TA00016E.
73. “Dithienogermole‐Containing Small‐Molecule Solar Cells with 7.3% Efficiency: In‐Depth Study on the Effects of Heteroatom Substitution of Si with Ge” Bright Walker,║ Mijin Moon,║ Junghoon Lee, Song Yi Park, Hyungju Ahn, Taehyo Kim, Tack Ho Lee, Jungwoo Heo, Jung Hwa Seo, Tae Joo Shin, Jin Young Kim, Changduk Yang Adv. Energy Mater. 5, 1402044 (2015), https://doi.org/10.1002/aenm.201402044.
74. “Improved Performance in Polymer Solar Cells Using Mixed PC61BM/PC71BM Acceptors” Seo-Jin Ko, Wonho Lee, Hyosung Choi, Bright Walker, Seungjib Yum, Seongbeom Kim, Tae Joo Shin, Han Young Woo and Jin Young Kim Adv. Energy Mater. 5, 1401687 (2015), https://doi.org/10.1002/aenm.201401687.
75. “Optimal top electrodes for inverted organic solar cells” Hye Rim Yeom, Jungwoo Heo, Gi-Hwan Kim, Seo-Jin Ko, Seyeong Song, Yimhyun Jo, Dong Suk Kim, Bright Walker and Jin Young Kim Phys. Chem. Chem. Phys., 3, 2152-2159 (2014), https://doi.org/10.1039/C4CP04788E.
76. “High mobility solution-processed hybrid light emitting transistors” Bright Walker, Mujeeb Ullah, Gil Jo Chae, Paul L. Burn, Shinuk Cho, Jin Young Kim, Ebinazar B. Namdas and Jung Hwa Seo Appl. Phys. Lett. 18, 183302 (2014), https://doi.org/10.1063/1.4900933.
77. “Size tailoring of aqueous germanium nanoparticle dispersions” Seongbeom Kim, Bright Walker, Song Yi Park, Hyosung Choi, Seo-Jin Ko, Jaeki Jeong, Myoung Hee Yun, Jeong Chul Lee, Dong Suk Kim and Jin Young Kim Nanoscale, 6, 10156-10160 (2014), https://doi.org/10.1039/C4NR01596G.
78. “Cesium-doped methylammonium lead iodide perovskite light absorber for hybrid solar cells” Hyosung Choi, Jaeki Jeong, Hak-Beom Kim, Seongbeom Kim, Bright Walker, Gi-Hwan Kim, Jin Young Kim Nano Energy 7, 80-85 (2014), https://doi.org/10.1016/j.nanoen.2014.04.017.
79. “Semi-crystalline photovoltaic polymers with efficiency exceeding 9% in a ~ 300 nm thick conventional single-cell device” Thanh Luan Nguyen, Hyosung Choi, S-J Ko, Mohammad Afsar Uddin, Bright Walker, Seungjib Yum, J-E Jeong, Myoung Hee Yun, TJ Shin, Sungu Hwang, Jin Young Kim and Han Young Woo Energy Environ. Sci. 7 (9), 3040-3051 (2014), https://doi.org/10.1039/C4EE01529K.
80. “Mixed solvents for the optimization of morphology in solution-processed, inverted-type perovskite/fullerene hybrid solar cells” Hak-Beom Kim, Hyosung Choi, Jaeki Jeong, Seongbeom Kim, Bright Walker, Seyeong Song, Jin Young Kim Nanoscale 6, 12, 6679-6683 (2014), https://doi.org/10.1039/C4NR00130C.
81. “Inverted colloidal quantum dot solar cells” Gi-Hwan Kim, Bright Walker, Hak-Beom Kim, Jin Young Kim, Edward H. Sargent, Jongnam Park and Jin Young Kim Adv. Mater. 26 (20), 3321-3327 (2014), https://doi.org/10.1002/adma.201305583.
82. “Solution-processed CdS transistors with high electron mobility” Bright Walker, Gi-Hwan Kim, Jungwoo Heo, Gil Jo Chae, Jongnam Park, Jung Hwa Seo and Jin Young Kim RSC Adv. 4, 3153 (2014), https://doi.org/10.1039/C3RA44436H.
83. “Replacing metal oxide layer with polymer surface modifier for high-performance inverted polymer solar cells” Tack Ho Lee, Hyosung Choi, Bright Walker, Taehyo Kim, Hak-Beom Kim and Jin Young Kim RSC Adv. 4, 4791 (2014), https://doi.org/10.1039/C3RA46180G.
84. “Hybrid transparent conductive films of multilayer graphene and metal grid for organic photovoltaics” Sung Man Kim, Bright Walker, Jung Hwa Seo and Seong Jun Kang Jpn. J. Appl. Phys. 52, 125103 (2013), https://doi.org/10.7567/JJAP.52.125103
85. “Pendant group effects on the optical and electrical properties of carbazole-diketopyrrolopyrrole copolymers” Obum Kwon, Jang Jo, Bright Walker, Guillermo C Bazan and Jung Hwa Seo J. Mater. Chem. A 1, 7118 (2013), https://doi.org/10.1039/C3TA11058C.
86. “Controlling polarity of organic bulk heterojunction field effect transistors via solvent additives” Jin Kuen Park, Bright Walker and Jung Hwa Seo ACS Appl. Mater. Interfaces 5, 4575 (2013), https://doi.org/10.1021/am400546x.
87. “Improved performance in TIPS-pentacene field effect transistors using solvent additives” Gil Jo Chae, Seung-Hyeon Jeong, Jeong Hoon Baek, Bright Walker, Chung-Kun Song and Jung Hwa Seo J. Mater. Chem. C 1, 4216 (2013), https://doi.org/10.1039/C3TC30506F.
88. “Effects of stereoisomerism on the crystallization behavior and optoelectrical properties of conjugated molecules” Jianhua Liu, Yuan Zhang, Hung Phan, Alexander Sharenko, Preecha Moonsin, Bright Walker, Vinich Promarak and Thuc‐Quyen Nguyen Adv. Mater. 25, 3618 (2013), https://doi.org/10.1002/adma.201300255. Selected Cover Article
89. “Effects of ionic liquid Molecules in hybrid PbS quantum dot-organic solar cells” Gi-Hwan Kim, Hak-Beom Kim, Bright Walker, Hyosung Choi, Changjin Yang, Jongnam Park and Jin Young Kim ACS Appl. Mater. Interfaces 5, 1757 (2013), https://doi.org/10.1021/am3029766.
90. “Optimization of energy levels by molecular design: evaluation of bis-diketopyrrolopyrrole molecular donor materials for bulk heterojunction solar cells” Bright Walker, Jianhua Liu, Chunki Kim, Gregory C. Welch, Jin Keun Park, Jason Lin, Peter Zalar, Christopher M. Proctor, Jung Hwa Seo, Guillermo C. Bazan and Thuc-Quyen Nguyen, Energy Environ. Sci. 6, 952 (2013), https://doi.org/10.1039/C3EE24351F.
91. “Effects of heteroatom substitutions on the crystal structure, film formation and optoelectronic properties of diketopyrrolopyrrole-based materials” Bright Walker,║ Jianhua Liu,║ Arnold Tamayo, Yuan Zhang and Thuc-Quyen Nguyen, Adv. Funct. Mater. 23, 47 (2013), https://doi.org/10.1002/adfm.201201599. Selected Cover Article
92. “Influence of structural variation on the solid-state properties of diketopyrrolopyrrole-based oligophenylenethiophenes: single-crystal structures, thermal properties, optical bandgaps, energy levels, film morphology, and hole mobility” Chunki Kim, Jianhua Liu, Jason Lin, Arnold B. Tamayo, Bright Walker, Guang Wu, and Thuc-Quyen Nguyen, Chem. Mater. 24, 1699 (2012), https://doi.org/10.1021/cm202852f.
93. “Molecular solubility and Hansen solubility parameters for the analysis of phase separation in bulk heterojunctions” Duc T. Duong, Bright Walker, Jason Lin, Chunki Kim, Balaji Purushothaman, John Anthony and Thuc-Quyen Nguyen, J. Polym. Sci., Part B: Polym. Phys. 50, 1405 (2012), https://doi.org/10.1002/polb.23153.
94. “Morphology control of solution processable small molecule bulk heterojunction solar cells via solvent additives” Jin Kuen Park, Chunki Kim, Bright Walker, Thuc-Quyen Nguyen and Jung Hwa Seo, RSC Adv. 2, 2232 (2012), DOI:10.1039/C2RA01182D.
95. "Quantification of geminate and non-geminate recombination losses within a solution-processed small-molecule bulk heterojunction solar cell" Dan Credgington, Fiona C. Jamieson, Bright Walker, Thuc-Quyen Nguyen and James R. Durrant, Adv. Mater. 24, 2135 (2012), https://doi.org/10.1002/adma.201104738.
96. “Triisopropylsilylethynyl-functionalized dibenzo[def,mno]chrysene: a solution processed small molecule for bulk heterojunction solar cells” Lei Zhang, Bright Walker, Feng Liu, Nicholas S. Colella, Stefan C. B. Mannsfeld, James J. Watkins, Thuc-Quyen Nguyen and Alejandro L. Briseno, J. Mater. Chem. 22, 4266 (2012), https://doi.org/10.1039/C2JM14998B.
97. “Solution-processed organic solar cells from dye molecules: an investigation of diketopyrrolopyrrole:vinazene heterojunctions” Bright Walker, Xu Han, Chunki Kim, Alan Sellinger and Thuc-Quyen Nguyen, ACS Appl. Mater. Interfaces 1, 244 (2012), https://doi.org/10.1021/am201304e.
98. “Optical and charge transport properties of water/alcohol-soluble quinacridone derivatives for application in polymer light emitting diodes” Peter Zalar, Toan. V. Pho, Andres Garcia, Bright Walker, Wesley Walker, Fred Wudl and Thuc-Quyen Nguyen, J. Phys. Chem. C 115, 17533 (2011), https://doi.org/10.1021/jp202214g.
99. “A systematic approach to solvent selection based on cohesive energy densities in a molecular bulk heterojunction system” Bright Walker, Arnold Tamayo, Duc Duong, Xuan-Dung Dang, Chunki Kim, Jimmy Granstrom and Thuc-Quyen Nguyen, Adv. Energy Mater. 1, 221 (2011), https://doi.org/10.1002/aenm.201000054.
100. “Small molecule solution-processed bulk heterojunction solar cells” Bright Walker, Chunki Kim and Thuc-Quyen Nguyen, Chem. Mater. 23, 470 (2011), DOI:10.1021/cm102189g. – Invited Review Paper
101. “Nanostructure and optoelectronic characterization of small molecule bulk heterojunction solar cells by photoconductive atomic force microscopy” Xuan-Dung Dang, Arnold B. Tamayo, Junghwa Seo, Corey V. Hoven, Bright Walker and Thuc-Quyen Nguyen, Adv. Funct. Mater. 20, 3314 (2010), https://doi.org/10.1002/adfm.201000799.
102. “Self-assembly and charge-transport properties of a polythiophene–fullerene triblock copolymer” Mark Dante, Changduk Yang, Bright Walker, Fred Wudl and Thuc-Quyen Nguyen, Adv. Mater. 22, 1835 (2010), https://doi.org/10.1002/adma.200902696.
103. “Improved injection in n-type organic transistors with conjugated polyelectrolytes” Jung Hwa Seo, Andrea Gutacker, Bright Walker, Shinuk Cho, Andres Garcia, Renqiang Yang, Thuc-Quyen Nguyen, Alan J. Heeger and Guillermo C. Bazan, J. Am. Chem. Soc. 131, 18220 (2009), https://doi.org/10.1021/ja908441c.
104. “Nano-scale phase separation and high photovoltaic efficiency in solution-processed, small-molecule bulk heterojunction solar cells” Bright Walker, Arnold B. Tamayo, Xuan Dung-Dang, Peter Zalar, Jung Hwa Seo, Andres Garcia, Mananya Tantiwiwat and Thuc-Quyen Nguyen, Adv. Funct. Mater. 19, 3063 (2009), DOI:10.1002/adfm.200900832. – Selected Cover Article
105. “Exciton binding energies in conjugated polyelectrolyte films” Jung Hwa Seo, Youngeup Jin, Jacek Z. Brzezinski, Bright Walker and Thuc-Quyen Nguyen, ChemPhysChem 10, 1023 (2009), https://doi.org/10.1002/cphc.200800751.
106. “Endohedral fullerenes for organic photovoltaic Devices” Russel B. Ross, Claudia M. Cardona, Dirk M. Guldi, Shankara Gayathri Sankaranarayanan, Matthew O. Reese, Nikos Kopidakis, Jeff Peet, Bright Walker, Guillermo C. Bazan, Edward Van Keuren, Brian C. Holloway and Martin Drees, Nature Mater. 8, 208 (2009), https://doi.org/10.1038/nmat2379.
107. “A low band gap, solution processable oligothiophene with a dialkylated diketopyrrolopyrrole chromophore for use in bulk heterojunction solar cells” Arnold Bernarte Tamayo, Xuan-Dang Dang, Bright Walker, Junghwa Seo, Tyler Kent and Thuc-Quyen Nguyen, Appl. Phys. Lett. 94, 103301 (2009), https://doi.org/10.1063/1.2968189.
108. “Electronic properties at gold/conjugated-polyelectrolyte interfaces” Jung Hwa Seo, Renqiang Yang, Jacek Z. Brzezinski, Bright Walker, Guillermo C. Bazan and Thuc-Quyen Nguyen, Adv. Mater. 21, 1006 (2009), https://doi.org/10.1002/adma.200802420.
109. “Solution-processed small molecule-based blue light-emitting diodes using conjugated polyelectrolytes as electron injection layers” Bright Walker, Arnold Tamayo, Jihua Yang, Jacek Z. Brzezinski and Thuc-Quyen Nguyen, Appl. Phys. Lett. 93, 063302 (2008), https://doi.org/10.1063/1.2968189.
110. “Design, synthesis, and self-assembly of oligothiophene derivatives with a diketopyrrolopyrrole core” Arnold Tamayo, Mananya Tantiwiwat, Bright Walker and Thuc-Quyen Nguyen, J. Phys. Chem. C 112, 15543 (2008), https://doi.org/10.1021/jp804816c.
111. “A low band gap, solution processable oligothiophene with a diketopyrrolopyrrole core for use in organic solar cells” Arnold Tamayo, Bright Walker and Thuc-Quyen Nguyen, J. Phys. Chem. C 112, 11545 (2008), https://doi.org/10.1021/jp8031572.
112. “Structure-function relationships of conjugated polyelectrolyte electron injection layers in polymer light emitting diodes” Andres Garcia, Renqiang Yang, Youngeup Jin, Bright Walker and Thuc-Quyen Nguyen, Appl. Phys. Lett. 91, 153502 (2007), https://doi.org/10.1063/1.2794422.
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