B
Bright Walker
Researcher at Kyung Hee University
Publications - 109
Citations - 9953
Bright Walker is an academic researcher from Kyung Hee University. The author has contributed to research in topics: Polymer solar cell & Organic solar cell. The author has an hindex of 37, co-authored 98 publications receiving 7895 citations. Previous affiliations of Bright Walker include Ulsan National Institute of Science and Technology & University of California, Santa Barbara.
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Journal ArticleDOI
Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells.
Jaeki Jeong,Jaeki Jeong,Minjin Kim,Jongdeuk Seo,Haizhou Lu,Paramvir Ahlawat,Aditya Mishra,Yingguo Yang,Michael A. Hope,Felix 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,Anders Hagfeldt,Dong Suk Kim,Michael Grätzel,Jin Young Kim +25 more
TL;DR: In this paper, the pseudo-halide anion formate (HCOO−) was used to suppress anion-vacancy defects that are present at grain boundaries and at the surface of the perovskite films.
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Small Molecule Solution-Processed Bulk Heterojunction Solar Cells†
TL;DR: The major classes of molecular donors have been reported in the literature in the past several years and highlights some of key considerations in molecular heterojunction design compared to polymer-based bulk heterojunctions as mentioned in this paper.
Journal ArticleDOI
Nanoscale 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,Thuc-Quyen Nguyen +7 more
TL;DR: In this article, a non-polymeric, diketopyrrolopyrrole-based donor material that can be solution processed with a fullerene acceptor to produce good quality films is reported.
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Semi-crystalline photovoltaic polymers with efficiency exceeding 9% in a ∼300 nm thick conventional single-cell device
Thanh Luan Nguyen,Hyosung Choi,Seo-Jin Ko,Mohammad Afsar Uddin,Bright Walker,Seungjib Yum,Ji Eun Jeong,Myoung Hee Yun,Tae Joo Shin,Seongyeon Hwang,Jin Young Kim,Han Young Woo +11 more
TL;DR: In this paper, a series of semi-crystalline, low band gap (LBG) polymers and demonstrate the fabrication of highly efficient polymer solar cells (PSCs) in a thick single-cell architecture.
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Endohedral fullerenes for organic photovoltaic devices
Russel Ross,Claudia M. Cardona,Dirk M. Guldi,Shankara G. Sankaranarayanan,Matthew O. Reese,Nikos Kopidakis,Jeff Peet,Bright Walker,Guillermo C. Bazan,Edward Van Keuren,Brian C. Holloway,Martin Drees +11 more
TL;DR: This work clears a path towards higher PCEs in OPV devices by demonstrating that high-yield charge separation can occur with OPV systems that have a reduced donor/acceptor lowest unoccupied molecular orbital energy offset.