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Xueyun Wang
Researcher at Beijing Institute of Technology
Publications - 128
Citations - 3183
Xueyun Wang is an academic researcher from Beijing Institute of Technology. The author has contributed to research in topics: Ferroelectricity & Perovskite (structure). The author has an hindex of 20, co-authored 94 publications receiving 1842 citations. Previous affiliations of Xueyun Wang include Rutgers University & University of Science and Technology Beijing.
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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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Giant piezoelectric d33 coefficient in ferroelectric vanadium doped ZnO films
TL;DR: In this paper, a giant electromechanical d33 coefficient 110pC∕N is obtained in ferroelectric V-doped ZnO films, which is nearly one order of magnitude higher than that of undoped samples.
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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.
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Topological defects as relics of emergent continuous symmetry and Higgs condensation of disorder in ferroelectrics
Shi-Zeng Lin,Xueyun Wang,Yoshitomo Kamiya,Gia-Wei Chern,Fei Fan,Fei Fan,David Fan,David Fan,Brian Casas,Brian Casas,Yue Liu,Yue Liu,Valery Kiryukhin,Wojciech H. Zurek,Cristian D. Batista,Sang-Wook Cheong +15 more
TL;DR: In this paper, an imaging study of vortex proliferation near a continuous phase transition in a ferroelectric reveals frozen-in vortices that follow the predictions of the Kibble-Zurek model for cosmological strings formed in the early Universe.
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An in situ cross-linked 1D/3D perovskite heterostructure improves the stability of hybrid perovskite solar cells for over 3000 h operation
Ning Yang,Cheng Zhu,Yihua Chen,Huachao Zai,Chenyue Wang,Xi Wang,Hao Wang,Sai Ma,Ziyan Gao,Xueyun Wang,Jiawang Hong,Yang Bai,Huanping Zhou,Bin-Bin Cui,Qi Chen +14 more
TL;DR: In this article, an in situ cross-linking polymerizable propargylammonium (PA+) was introduced to the 3D perovskite film at surfaces and grain boundaries to form a 1D/3D polygonal heterostructure.