J
Jiafeng Wu
Researcher at Beijing Institute of Technology
Publications - 7
Citations - 579
Jiafeng Wu is an academic researcher from Beijing Institute of Technology. The author has contributed to research in topics: Perovskite (structure) & Lithium. The author has an hindex of 5, co-authored 7 publications receiving 311 citations.
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Journal ArticleDOI
Grain‐Boundary “Patches” by In Situ Conversion to Enhance Perovskite Solar Cells Stability
Lang Liu,Sheng Huang,Yue Lu,Pengfei Liu,Yizhou Zhao,Congbo Shi,Siyu Zhang,Jiafeng Wu,Haizheng Zhong,Manling Sui,Huanping Zhou,Haibo Jin,Yujing Li,Qi Chen +13 more
TL;DR: MMI is employed for the first time to construct a surface "patch" by in situ converting residual PbI2 at GBs, which can effectively suppress ion migration and inhibit diffusion of the metal electrodes in a perovskite-based optoelectronics complex.
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Interfacial Residual Stress Relaxation in Perovskite Solar Cells with Improved Stability.
Hao Wang,Cheng Zhu,Lang Liu,Sai Ma,Pengfei Liu,Jiafeng Wu,Congbo Shi,Qin Du,Yanmin Hao,Sisi Xiang,Haining Chen,Pengwan Chen,Yang Bai,Huanping Zhou,Yujing Li,Qi Chen +15 more
TL;DR: A "bone-joint" configuration is constructed within the interface between the absorber and the carrier transport layer, which improves device performance substantially and exhibits an efficiency of 21.48% with good humidity stability and improved resistance against thermal cycling.
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1000 h Operational Lifetime Perovskite Solar Cells by Ambient Melting Encapsulation
Sai Ma,Yang Bai,Hao Wang,Huachao Zai,Jiafeng Wu,Liang Li,Sisi Xiang,Na Liu,Lang Liu,Cheng Zhu,Guilin Liu,Xiuxiu Niu,Haining Chen,Huanping Zhou,Yujing Li,Qi Chen +15 more
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Interface engineering in solid state Li metal batteries by quasi-2D hybrid perovskites
TL;DR: In this paper, the metal-halide perovskites (MHP) were used to modify the garnet solid electrolyte (Li6.75La3Zr1.75Ta0.25O12, LLZTO) through the solution process.
Journal ArticleDOI
Cation Diffusion Guides Hybrid Halide Perovskite Crystallization during the Gel Stage
Lang Liu,Yang Bai,Xiao Zhang,Yuequn Shang,Chenyue Wang,Hao Wang,Cheng Zhu,Chen Hu,Jiafeng Wu,Huanping Zhou,Yujing Li,Shihe Yang,Shihe Yang,Zhijun Ning,Qi Chen +14 more
TL;DR: This work systematically investigates the cation diffusion kinetics at the gel stage to develop a diffusion model obeying Fick's Second Law, and successfully fabricates a homogenous 2D perovskite thin film without significant phase segregation.