W
Wangen Zhao
Researcher at Shaanxi Normal University
Publications - 33
Citations - 1714
Wangen Zhao is an academic researcher from Shaanxi Normal University. The author has contributed to research in topics: Perovskite (structure) & Thin film. The author has an hindex of 17, co-authored 29 publications receiving 1222 citations. Previous affiliations of Wangen Zhao include Chinese Academy of Sciences.
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Journal ArticleDOI
Solution-Processed Nb:SnO2 Electron Transport Layer for Efficient Planar Perovskite Solar Cells
Xiaodong Ren,Dong Yang,Zhou Yang,Jiangshan Feng,Xuejie Zhu,Jinzhi Niu,Yucheng Liu,Wangen Zhao,Shengzhong Frank Liu,Shengzhong Frank Liu +9 more
TL;DR: Experimental analyses reveal that the Nb:SnO2 ETL significantly enhances the electron extraction and effectively suppresses charge recombination, leading to improved solar cell performance.
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Alkali Metal Doping for Improved CH3NH3PbI3 Perovskite Solar Cells.
TL;DR: It is found that the addition of the alkali metal ions clearly improves the quality of perovskite film: enlarges the grain sizes, reduces the defect state density, passivates the grain boundaries, increases the built‐in potential (V bi), resulting to the enhancement in the power conversion efficiency of pervskite thin film solar cell.
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Fabrication of a Cu2ZnSn(S,Se)(4) Photovoltaic Device by a Low-Toxicity Ethanol Solution Process
TL;DR: A thermally degradable metal butyldithiocarbamate-based solution approach to fabricate Cu2ZnSn(S,Se)4 solar cells to achieve power conversion efficiency of 6.03% on the basis of the active area.
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Versatile and Low-Toxic Solution Approach to Binary, Ternary, and Quaternary Metal Sulfide Thin Films and Its Application in Cu2ZnSn(S,Se)4 Solar Cells
TL;DR: In this paper, a solution approach for the fabrication of a variety of metal sulfide nanocrystal thin films was developed for solar cells with a power conversion efficiency of 6.83% by spincoating their corresponding metal precursor solutions.
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Solution-Processed Highly Efficient Cu2ZnSnSe4 Thin Film Solar Cells by Dissolution of Elemental Cu, Zn, Sn, and Se Powders
TL;DR: In this approach, low-cost elemental Cu, Zn, Sn, and Se powders were simultaneously dissolved in the solution of thioglycolic acid and ethanolamine, forming a homogeneous CTSe precursor solution to deposit CZTSe nanocrystal thin films.