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Weiwei Meng
Researcher at University of Toledo
Publications - 47
Citations - 5871
Weiwei Meng is an academic researcher from University of Toledo. The author has contributed to research in topics: Perovskite (structure) & Band gap. The author has an hindex of 27, co-authored 36 publications receiving 4286 citations. Previous affiliations of Weiwei Meng include Wuhan University.
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Journal ArticleDOI
Thin-film preparation and characterization of Cs3Sb2I9: A lead-free layered perovskite semiconductor
Bayrammurad Saparov,Feng Hong,Feng Hong,Jon-Paul Sun,Hsin Sheng Duan,Weiwei Meng,Samuel Cameron,Ian G. Hill,Yanfa Yan,David B. Mitzi +9 more
TL;DR: In this paper, a two-step deposition approach is described for the preparation of large grain (>1 μm) and continuous thin films of the lead-free layered perovskite derivative Cs3Sb2I9.
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Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22.
Wei-Qiang Liao,Wei-Qiang Liao,Dewei Zhao,Yue Yu,Corey R. Grice,Changlei Wang,Alexander J. Cimaroli,Philip Schulz,Weiwei Meng,Kai Zhu,Ren-Gen Xiong,Yanfa Yan +11 more
TL;DR: Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3 ) perovskite solar cells (PVSCs) are demonstrated and exhibit small photocurrent-voltage hysteresis and high reproducibility.
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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.