J
Jia Zhang
Researcher at University of Tennessee
Publications - 27
Citations - 509
Jia Zhang is an academic researcher from University of Tennessee. The author has contributed to research in topics: Perovskite (structure) & Photoexcitation. The author has an hindex of 9, co-authored 21 publications receiving 289 citations. Previous affiliations of Jia Zhang include Huazhong University of Science and Technology & Beijing Jiaotong University.
Papers
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Journal ArticleDOI
Uniform Permutation of Quasi-2D Perovskites by Vacuum Poling for Efficient, High-Fill-Factor Solar Cells
Jia Zhang,Jiajun Qin,Miaosheng Wang,Yujie Bai,Han Zou,Jong K. Keum,Runming Tao,Hengxing Xu,Haomiao Yu,Stefan Haacke,Bin Hu +10 more
TL;DR: In this paper, a different strategy of uniformly arranging different n-value nanoplates (PEA2MAn-1PbnI3n+1) by introducing vacuum poling treatment to enforce nucleation during crystallization is reported.
Journal ArticleDOI
Establishing charge-transfer excitons in 2D perovskite heterostructures.
TL;DR: It is reported that CTEs can be effectively formed in heterostructured 2D perovskites prepared by mixing PEA 2 PbI 4 :PEA 2 SnI 4 , functioning as host and guest components.
Journal ArticleDOI
Photoinduced Bulk Polarization and Its Effects on Photovoltaic Actions in Perovskite Solar Cells
Ting Wu,Liam Collins,Jia Zhang,Pei Ying Lin,Pei Ying Lin,Mahshid Ahmadi,Stephen Jesse,Bin Hu +7 more
TL;DR: A Kelvin probe force microscopy study shows that chlorine incorporation can suppress the density of charged defects and thus enhances photoinduced bulk polarization due to the reduced screening effect from charged defects, and a bias-dependent photoluminescence study indicates that increasing bulk polarization can suppress carrier recombination by decreasing charge capture probability through the Coulombic screening effect.
Journal ArticleDOI
Exploring Anomalous Polarization Dynamics in Organometallic Halide Perovskites.
Mahshid Ahmadi,Liam Collins,Alexander A. Puretzky,Jia Zhang,Jong K. Keum,Wei Lu,Ilia N. Ivanov,Sergei V. Kalinin,Bin Hu +8 more
TL;DR: These OMHPs present the limit of ferroelectric materials with spontaneous polarization dynamically screened by ionic and electronic carriers, which is suppressed by fast ion dynamics.
Journal ArticleDOI
Exploring spin-orbital coupling effects on photovoltaic actions in Sn and Pb based perovskite solar cells
Jia Zhang,Jia Zhang,Ting Wu,Jiashun Duan,Mahshid Ahmadi,Fangyuan Jiang,Yinhua Zhou,Bin Hu,Bin Hu,Bin Hu +9 more
TL;DR: In this paper, the spin-dependent photocurrent (Jsc) becomes much more prominent upon replacing Pb with Sn, increasing the spin dependence from 025% to 125% by switching the photoexcitation from linear to circular polarization.