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Changfeng Han
Researcher at Beijing Jiaotong University
Publications - 16
Citations - 258
Changfeng Han is an academic researcher from Beijing Jiaotong University. The author has contributed to research in topics: Perovskite (structure) & Polymer solar cell. The author has an hindex of 9, co-authored 16 publications receiving 186 citations. Previous affiliations of Changfeng Han include Henan University.
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Journal ArticleDOI
Enhanced Performance of Inverted Polymer Solar Cells by Combining ZnO Nanoparticles and Poly[(9,9-bis(3′-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctyfluorene)] as Electron Transport Layer
Changfeng Han,Cheng Yuanyuan,Ling Chen,Lei Qian,Ziyan Yang,Wei Xue,Zhang Ting,Yang Yixing,Cao Weiran +8 more
TL;DR: With the enhanced electron extraction induced by the ZnO/PFN bilayer structure and PTB7:ICBA:PC71BM ternary system, the corresponding inverted PSC device shows a high PCE of 9.3%, which is more than a 15% improvement compared to the ZNO- or PFN-only devices.
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Surface polarization and recombination in organic-inorganic hybrid perovskite solar cells based on photo- and electrically induced negative capacitance studies
Qin Yang,Kai Wang,Haomiao Yu,Xixiang Zhu,Changfeng Han,Liangliang Deng,Hanjun Yang,Fenggui Zhao,Xiaojuan Sun,Qi Zhang,Bin Hu +10 more
TL;DR: In this paper, a planar solar cell comprising ITO(glass)/PEDOT:PSS/CH3NH3PbI3-xClx/PC60BM/PEI/Ag with a maximum power conversion efficiency (PCE) of 15.4%.
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Multiple electron transporting layers and their excellent properties based on organic solar cell.
Ziyan Yang,Zhang Ting,Jingyu Li,Wei Xue,Changfeng Han,Cheng Yuanyuan,Lei Qian,Cao Weiran,Yang Yixing,Song Chen +9 more
TL;DR: To improve the performance of inverted polymer solar cells based on a ternary blend of polymerthieno thiophene/benzodithiophene, the interface dipole between the organic active layer and AZO is introduced and the PCE is enhanced.
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Surface Modification of SnO2 via MAPbI3 Nanowires for a Highly Efficient Non-Fullerene Acceptor-Based Organic Solar Cell.
Fenggui Zhao,Liangliang Deng,Kai Wang,Changfeng Han,Zhe Liu,Haomiao Yu,Jinpeng Li,Bin Hu,Bin Hu +8 more
TL;DR: Experimental results indicate that the electron-hole dissociation, charge extraction and photo-absorption ability of the organic solar cell can be improved significantly and the inside generation of photocurrent is explored by the magneto-photocurrent method.
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Unraveling surface and bulk trap states in lead halide perovskite solar cells using impedance spectroscopy
TL;DR: In this article, the authors reported CH3NH3PbI3−x Cl x -based planar solar cells with a power conversion efficiency (PCE) of 15.8%.