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Moire flat bands in twisted 2D hexagonal vdW material
Qiaoling Xu, Yuzheng Guo, Lede Xian
Moire superlattices in twisted bilayer graphene (TBG) and its derived structures can host exotic correlated quantum phenomena because the narrow moire flat minibands in those syste…
Design of Lead-Free Inorganic Halide Perovskites for Solar Cells via Cation-Transmutation
Xin-Gang Zhao, Ji-Hui Yang, Yuhao Fu +5
Hybrid organic-inorganic halide perovskites with the prototype material of CHNHPbI have recently attracted intense interest as low-cost and high-performance photo…
Functionality-directed Screening of Pb-free Hybrid Organic-inorganic Perovskites with Desired Intrinsic Photovoltaic Functionalities
Dongwen Yang, Jian Lv, Xingang Zhao +5
The material class of hybrid organic-inorganic perovskites has risen rapidly from a virtually unknown material in photovoltaic applications a short 7 years ago into a ~20% efficien…
Sn(II)-containing phosphates as optoelectronic materials
Qiaoling Xu, Yuwei Li, Lijun Zhang +3
We theoretically investigate Sn(II) phosphates as optoelectronic materials using first principles calculations. We focus on known prototype materials SnPO (n=2, 3,…
Design of ternary alkaline-earth metal Sn(II) oxides with potential good p-type conductivity
Yuwei Li, David J. Singh, Mao-Hua Du +4
Oxides with good p-type conductivity have been long sought after to achieve high performance all-oxide optoelectronic devices. Divalent Sn(II) based oxides are promising candidates…