期刊
NANO-MICRO LETTERS
卷 10, 期 3, 页码 -出版社
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-018-0205-5
关键词
Perovskite solar cells; Copper-doped nickel oxide; Zinc oxide; Simulation
资金
- National Natural Science Foundation of China [51772096, 51372082, 51402106, 11504107]
- Beijing Natural Science Foundation [17L20075]
- Joint Funds of the Equipment Pre-Research and Ministry of Education [6141A020225]
- National High-tech RAMP
- D Program of China (863 Program) [2015AA034601]
- Par-Eu Scholars Program, Beijing Municipal Science and Technology Project [Z161100002616039]
- Fundamental Research Funds for the Central Universities [2016JQ01, 2017ZZD02]
Although perovskite solar cells with power conversion efficiencies (PCEs) more than 22% have been realized with expensive organic charge-transporting materials, their stability and high cost remain to be addressed. In this work, the perovskite configuration of MAPbX (MA = CH3NH3, X = I-3, Br-3, or I2Br) integrated with stable and low-cost Cu:NiOx hole-transporting material, ZnO electron-transporting material, and Al counter electrode was modeled as a planar PSC and studied theoretically. A solar cell simulation program (wxAMPS), which served as an update of the popular solar cell simulation tool (AMPS: Analysis of Microelectronic and Photonic Structures), was used. The study yielded a detailed understanding of the role of each component in the solar cell and its effect on the photovoltaic parameters as a whole. The bandgap of active materials and operating temperature of the modeled solar cell were shown to influence the solar cell performance in a significant way. Further, the simulation results reveal a strong dependence of photovoltaic parameters on the thickness and defect density of the light-absorbing layers. Under moderate simulation conditions, the MAPbBr(3) and MAPbI(2)Br cells recorded the highest PCEs of 20.58 and 19.08%, respectively, while MAPbI(3) cell gave a value of 16.14%.
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