H
Haipeng Xie
Researcher at Central South University
Publications - 98
Citations - 3993
Haipeng Xie is an academic researcher from Central South University. The author has contributed to research in topics: Perovskite (structure) & Photoemission spectroscopy. The author has an hindex of 25, co-authored 82 publications receiving 2478 citations.
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Journal ArticleDOI
Cation and anion immobilization through chemical bonding enhancement with fluorides for stable halide perovskite solar cells
Nengxu Li,Shuxia Tao,Yihua Chen,Xiuxiu Niu,Chidozie Onwudinanti,Chen Hu,Zhiwen Qiu,Ziqi Xu,Guanhaojie Zheng,Ligang Wang,Yu Zhang,Liang Li,Huifen Liu,Yingzhuo Lun,Jiawang Hong,Xueyun Wang,Yuquan Liu,Haipeng Xie,Yongli Gao,Yongli Gao,Yang Bai,Shihe Yang,Shihe Yang,Geert Brocks,Geert Brocks,Qi Chen,Huanping Zhou +26 more
TL;DR: Li et al. as discussed by the authors employed fluoride to simultaneously passivate both anion and cation vacancies, by taking advantage of the extremely high electronegativity of fluoride, and obtained a power conversion efficiency of 21.46% (and a certified 21.3%-efficient cell) in a device based on the caesium, methylammonium (MA), and formamidinium (FA) triple-cation perovskite (Cs0.05FA0.41)Pb(I0.98Br0.02)3 treated with sodium
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Qualifying composition dependent p and n self-doping in CH3NH3PbI3
TL;DR: In this article, self-doping in perovskite was found to be either n- or p-doped by changing the ratio of methylammonium halide (MAI) and lead iodine (PbI2).
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2D MoS 2 Neuromorphic Devices for Brain-Like Computational Systems.
Jie Jiang,Junjie Guo,Xiang Wan,Xiang Wan,Yi Yang,Yi Yang,Haipeng Xie,Dongmei Niu,Junliang Yang,Jun He,Yongli Gao,Yongli Gao,Qing Wan,Qing Wan +13 more
TL;DR: Fundamental synaptic functions, such as an excitatory postsynaptic current, paired-pulse facilitation, and a dynamic filter for information transmission of biological synapse, are successfully emulated.
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Liquid medium annealing for fabricating durable perovskite solar cells with improved reproducibility.
Nengxu Li,Nengxu Li,Xiuxiu Niu,Xiuxiu Niu,Liang Li,Hao Wang,Zijian Huang,Yu Zhang,Yihua Chen,Xiao Zhang,Cheng Zhu,Huachao Zai,Yang Bai,Sai Ma,Huifen Liu,Xixia Liu,Zhenyu Guo,Guilin Liu,Rundong Fan,Hong Chen,Jianpu Wang,Yingzhuo Lun,Xueyun Wang,Jiawang Hong,Haipeng Xie,Devon S. Jakob,Xiaoji G. Xu,Qi Chen,Huanping Zhou +28 more
TL;DR: In this paper, a liquid medium annealing (LMA) technology is used to create a robust chemical environment and constant heating field to modulate crystal growth over the entire film, which produces films with high crystallinity, fewer defects, desired stoichiometry, and overall film homogeneity.
Journal ArticleDOI
Interfacial electronic structure at the CH3NH3PbI3/MoOx interface
Peng Liu,Xiaoliang Liu,Lu Lyu,Haipeng Xie,Hong Zhang,Dongmei Niu,Han Huang,Cheng Bi,Zhengguo Xiao,Jinsong Huang,Yongli Gao +10 more
TL;DR: In this paper, the authors investigated the interfacial electronic properties of the CH3NH3PbI3 (MAPBI3)/MoOx interface using ultraviolet and X-ray photoemission spectroscopy.