Study on the properties of solar cell under bias condition by using impedance spectroscopy
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1. Key Laboratory of Nondestructive Test, Ministry of Education, Nanchang Hangkong University, Nanchang 330063, China;2. Science and Technology College, Nanchang Hangkong University, Gongqingcheng 332020, China;2. Science and Technology College, Nanchang Hangkong University, Gongqingcheng 332020, China;3. School of Engineering and Construction, Nanchang University, Nanchang 33003, China

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    Abstract:

    This paper investigates the properties of silicon cells (SI) and perovskite solar cells (PSC) under bias condition by using impedance spectroscopy. The parallel resistances Rpof SI and PSC are found to decrease with increasing bias, but the capacitance Cpshows the opposite trend. Comparing Rpwith Cp, bias has a greater impact on the Cp of both cells. However, the bias has little effect on the series resistance Rs of both cells. Compared with SI cell, the bias is seen to be a greater impact on the Rp and a smaller impact on Cp of PSC. The carrier lifetime τn in SI and PSC first increases and then decreases with bias, and the carrier diffusion length Ld increases almost linearly with bias. Compared to SI cell, the bias has a greater impact on PSC’s Ld.

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XIAO Wenbo, LI Ao, XIAO Bangzhi. Study on the properties of solar cell under bias condition by using impedance spectroscopy[J]. Optoelectronics Letters,2024,20(9):518-522

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History
  • Received:October 03,2023
  • Revised:April 03,2024
  • Online: August 14,2024
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