S
Sheng-Yung Chang
Researcher at University of California, Los Angeles
Publications - 25
Citations - 2635
Sheng-Yung Chang is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Polymer solar cell & Perovskite (structure). The author has an hindex of 18, co-authored 25 publications receiving 1827 citations. Previous affiliations of Sheng-Yung Chang include National Taiwan University.
Papers
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Journal ArticleDOI
2D perovskite stabilized phase-pure formamidinium perovskite solar cells
Jin-Wook Lee,Zhenghong Dai,Tae Hee Han,Chungseok Choi,Sheng-Yung Chang,Sung-Joon Lee,Nicholas De Marco,Hongxiang Zhao,Pengyu Sun,Yu Huang,Yang Yang +10 more
TL;DR: The fabrication of phase-pure formamidinium-lead tri-iodide perovskite films with excellent optoelectronic quality and stability is reported with an order of magnitude enhanced photoluminescence lifetime.
Journal ArticleDOI
Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics
Jun Yuan,Tianyi Huang,Pei Cheng,Yingping Zou,Huotian Zhang,Jonathan Lee Yang,Sheng-Yung Chang,Zhenzhen Zhang,Wenchao Huang,Rui Wang,Dong Meng,Feng Gao,Yang Yang +12 more
TL;DR: A facile synthetic strategy is reported, where optoelectronic properties are delicately tuned by the introduction of electron-deficient-core-based fused structure into non-fullerene acceptors to achieve both low voltage loss and high current density, leading to a certified high efficiency.
Journal ArticleDOI
High-performance perovskite/Cu(In,Ga)Se2 monolithic tandem solar cells
Qifeng Han,Yao-Tsung Hsieh,Lei Meng,Jyh-Lih Wu,Pengyu Sun,En-Ping Yao,Sheng-Yung Chang,Sang-Hoon Bae,Takuya Kato,Veronica Bermudez,Yang Yang +10 more
TL;DR: Control of the roughness of the CIGS surface and the use of a heavily doped organic hole transport layer were crucial to achieve a 22.4% power conversion efficiency in a two-terminal tandem cell with hybrid perovskite/CIGS combination.
Journal ArticleDOI
Tailoring the Interfacial Chemical Interaction for High-Efficiency Perovskite Solar Cells.
Lijian Zuo,Qi Chen,Nicholas De Marco,Yao-Tsung Hsieh,Huajun Chen,Pengyu Sun,Sheng-Yung Chang,Hongxiang Zhao,Shiqi Dong,Yang Yang +9 more
TL;DR: It is demonstrated that interfacial chemical interactions are a critical factor in determining the optoelectronic properties of perovskite solar cells, and proper interfacial interactions can significantly reduce trap state density and facilitate the interfacial charge transfer.
Journal ArticleDOI
Transparent Polymer Photovoltaics for Solar Energy Harvesting and Beyond
TL;DR: In this paper, the authors proposed to shift the active-layer absorption spectrum to the infrared region by designing new lowbandgap donors and non-fullerene acceptors, and to reduce the invalid absorption by developing new transparent electrode materials.