Study of open circuit voltage loss mechanism in perovskite solar cells

Author(s)

He, Yulu ; Abdellaoui, Imane ; Abdel-Shakour, M. ; Chowdhury, Towhid Hossain ; Kamarudin, Muhammad Akmal ; Nogueira, Ana Flavia ; Shen, Qing ; Hayase, Shuzi ; Islam, Ashraful ; Sakurai, Takeaki

• Document type: Journal article
• Source: JAPANESE JOURNAL OF APPLIED PHYSICS; v. 60, n. SB, p. 6-pg., 2021-05-01.

Abstract

Open circuit voltage ( V-oc) loss within perovskite solar cells (PSCs) is undesirable as it reduces the power conversion efficiency of these devices. This report proposes a useful method to study V-oc loss mechanisms based on experimental samples. V-oc, in the radiative limit (V-oc(rad)) of devices is estimated by combining the detailed balance theory and the van Roosbroeck-Shockley relation. Furthermore, V-oc loss from bulk recombination can be quantified by introducing the bulk lifetime. Thus, the V-oc loss from bulk recombination of MAPbI(3) and FASnI(3) was estimated as 0.094 V and 0.061 V-oc respectively. The analysis helps distinguish and quantify the V-oc, loss of PSCs. (C) 2021 The Japan Society of Applied Physics (AU)

• FAPESP's process: 19/22419-0 - Japan-Brazil research collaboration for green electronics -Study of non-toxic halide perovskite thin-film solar cells-
• Grantee: Ana Flávia Nogueira
• Support Opportunities: Regular Research Grants