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Investigation of ion migration in perovskite solar cells based on photovoltage/current transient

M. X. LI1, G. L. LIU1,2, X. Xi1,2,* , L. WANG1,3, Q. Y. SUN1, B. J. ZHU4, H. Q. ZHOU5,6

Affiliation

  1. School of Science, Jiangnan University, Wuxi, Jiangsu, 214122, China
  2. International Joint Research Center for photoresponse functional molecular materials, Wuxi, Jiangsu, 214122, China
  3. School of Internet of Things Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, China
  4. Wuxi Institution of Supervision & Testing on Product Quality, Wuxi, Jiangsu, 214101, China
  5. Zhejiang Beyondsu PV CO., LTD., Huzhou, Zhejiang, 313200, China
  6. Zhejiang Beyondsun Green Energy CO., LTD., Huzhou, Zhejiang, 313200, China

Abstract

The hysteresis effect due to ion migration has become an obstacle for the development of perovskite solar cells, which means the detection of carrier properties of ion migration in perovskite devices is an urgent mission. In this article, we have proposed a novel method based on the photovoltage/current transient to evaluate the differential capacitance of the perovskite devices and calculated the charge of ion migration, confirmed that light has a facilitating effect on ion migration. Dislike contact method, the light injection way has advantages of noncontact and fast in detection, which can be applied in the rapid characterization of perovskites.

Keywords

Perovskite Solar Cells, Ion migration, Photovoltage Transient, Photocurrent Transient.

Citation

M. X. LI, G. L. LIU, X. Xi, L. WANG, Q. Y. SUN, B. J. ZHU, H. Q. ZHOU, Investigation of ion migration in perovskite solar cells based on photovoltage/current transient, Optoelectronics and Advanced Materials - Rapid Communications, 16, 5-6, May-June 2022, pp.220-227 (2022).

Submitted at: Nov. 16, 2021

Accepted at: June 6, 2022