G
Guanhaojie Zheng
Researcher at Linköping University
Publications - 40
Citations - 2856
Guanhaojie Zheng is an academic researcher from Linköping University. The author has contributed to research in topics: Perovskite (structure) & Chemistry. The author has an hindex of 17, co-authored 29 publications receiving 1718 citations. Previous affiliations of Guanhaojie Zheng include Chinese Academy of Sciences & Peking University.
Papers
More filters
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
Journal ArticleDOI
Chemical Reduction of Intrinsic Defects in Thicker Heterojunction Planar Perovskite Solar Cells
Zonghao Liu,Zonghao Liu,Junnan Hu,Haoyang Jiao,Liang Li,Guanhaojie Zheng,Yihua Chen,Yuan Huang,Qing Zhang,Chao Shen,Qi Chen,Huanping Zhou +11 more
TL;DR: A simple methylamine solution-based additive is reported to improve film quality with nearly an order of magnitude reduction in intrinsic defect concentration, and an increase in carrier lifetime as a result of a decrease in shallow electronic disorder is observed.
Journal ArticleDOI
Exploration of Crystallization Kinetics in Quasi Two-Dimensional Perovskite and High Performance Solar Cells.
TL;DR: It is revealed that appropriate FA+ incorporation can effectively control the perovskite crystallization kinetics, which reduces nonradiative recombination centers to acquire high-quality films with a limited nonorientated phase.
Journal ArticleDOI
Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes.
Max J. Karlsson,Ziyue Yi,Ziyue Yi,Sebastian Reichert,Xiyu Luo,Xiyu Luo,Weihua Lin,Zeyu Zhang,Chunxiong Bao,Rui Zhang,Sai Bai,Guanhaojie Zheng,Pengpeng Teng,Lian Duan,Yue Lu,Kaibo Zheng,Kaibo Zheng,Tõnu Pullerits,Carsten Deibel,Weidong Xu,Richard H. Friend,Feng Gao +21 more
TL;DR: In this paper, the authors demonstrate spectrally stable blue perovskite light-emitting diodes over a wide range of emission wavelengths from 490 to 451 nanometres.
Journal ArticleDOI
Manipulation of facet orientation in hybrid perovskite polycrystalline films by cation cascade
Guanhaojie Zheng,Guanhaojie Zheng,Cheng Zhu,Jingyuan Ma,Xiao-Nan Zhang,Gang Tang,Runguang Li,Yihua Chen,Liang Li,Jin-Song Hu,Jiawang Hong,Qi Chen,Xingyu Gao,Huanping Zhou +13 more
TL;DR: Effective control of the crystal stacking mode by cation cascade doping, which promotes the charge transport in the photovoltaic device, is demonstrated.