Z
Zewen Xiao
Researcher at Huazhong University of Science and Technology
Publications - 104
Citations - 6858
Zewen Xiao is an academic researcher from Huazhong University of Science and Technology. The author has contributed to research in topics: Perovskite (structure) & Band gap. The author has an hindex of 33, co-authored 80 publications receiving 4375 citations. Previous affiliations of Zewen Xiao include Xi'an Jiaotong University & Tokyo Institute of Technology.
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Journal ArticleDOI
From Lead Halide Perovskites to Lead-Free Metal Halide Perovskites and Perovskite Derivatives
TL;DR: Reviews on the theoretical understanding of the electronic, optical, and defect properties of Pb and Pb-free halide perovskites andperovskite derivatives are provided, as well as the experimental results available in the literature.
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Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality
TL;DR: In this article, the authors show that perovskite-based solar cells should have a high electronic dimensionality, because of barriers to isotropic current flow, enhanced electron/hole effective masses and fundamentally deeper defect states.
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Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells.
Weijun Ke,Weijun Ke,Weijun Ke,Chuanxiao Xiao,Changlei Wang,Bayrammurad Saparov,Hsin-Sheng Duan,Dewei Zhao,Dewei Zhao,Zewen Xiao,Philip Schulz,Steven P. Harvey,Wei-Qiang Liao,Weiwei Meng,Yue Yu,Alexander J. Cimaroli,Chun-Sheng Jiang,Kai Zhu,Mowafak Al-Jassim,Guojia Fang,David B. Mitzi,Yanfa Yan +21 more
TL;DR: Lead thiocyanate in the perovskite precursor can increase the grain size of a perovSkite thin film and reduce the conductivity of the grain boundaries, leading to perovkite solar cells with reduced hysteresis and enhanced fill factor.
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Parity-Forbidden Transitions and Their Impact on the Optical Absorption Properties of Lead-Free Metal Halide Perovskites and Double Perovskites.
TL;DR: It is shown that if B2+ is not Sn or Ge, Pb-free metal halide perovskites exhibit poor optical absorptions because of their indirect band gap nature, making them not ideal for thin-film solar cell applications.
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Thin-Film Deposition and Characterization of a Sn-Deficient Perovskite Derivative Cs2SnI6
Bayrammurad Saparov,Jon-Paul Sun,Weiwei Meng,Zewen Xiao,Hsin-Sheng Duan,Oki Gunawan,Donghyeop Shin,Ian G. Hill,Yanfa Yan,David B. Mitzi +9 more
TL;DR: In this paper, a two-step deposition approach was proposed to obtain continuous and well-structured thin films of Cs2SnI6, which is a one-half Sn-deficient 0-D perovskite derivative (i.e., the compound can also be written as CsSn0.5I3, with a structure consisting of isolated SnI64- octahedra).