Simulation and optimization of dopant-free asymmetric heterojunction solar cells

Qiaoqiao Zheng , Yujie Yuan , Guofu Hou , Wei Li , Ke Tao , Zhuo Peng

Optoelectronics Letters ›› 2023, Vol. 19 ›› Issue (6) : 337 -346.

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Optoelectronics Letters ›› 2023, Vol. 19 ›› Issue (6) : 337 -346. DOI: 10.1007/s11801-023-2159-1
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Simulation and optimization of dopant-free asymmetric heterojunction solar cells

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Abstract

In order to further study doping-free asymmetric heterojunction (DASH) solar cells, we used AFORS-HET software to optimize the structure of Al/SnO2/a-Si:H (i)/c-Si (p)/a-Si:H (i)/NiOx/Ag. In a certain adjustment range, a series of simulations were carried out on the band gap, electron affinity, thickness and work function (WF) of NiOx, thickness and WF of SnO2, and the thickness of a-Si:H (i). After the above optimization, 21.08% efficiency was obtained at 300 K. This study shows that the solar cells with this structure have good light absorption properties in a very wide spectrum. The present simulation provides instructive suggestions for follow-up experiments of DASH solar cells.

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Qiaoqiao Zheng, Yujie Yuan, Guofu Hou, Wei Li, Ke Tao, Zhuo Peng. Simulation and optimization of dopant-free asymmetric heterojunction solar cells. Optoelectronics Letters, 2023, 19(6): 337-346 DOI:10.1007/s11801-023-2159-1

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