Issue 48, 2018

Suppressed hysteresis and enhanced performance of triple cation perovskite solar cell with chlorine incorporation

Abstract

Cs/FA(CH(NH2)2+)/MA(CH3NH3+) triple cation composition engineering is considered as an effective strategy to achieve high performance devices due to the excellent bandgap, uniform film and highly thermal stability. However, hysteresis, as a common phenomenon in perovskite solar cells (PSCs), of the triple-cation perovskite based PSCs has become a complex issue to be solved on the road to the commercialization of PSCs. The introduction of Cs into small perovskite grains resulted in more grain boundaries for ions accumulation. Herein, we demonstrate a unique method to suppress JV hysteresis and enhance the photoelectric performance via Cl doping into a CsFAMA precursor. We found that the grain size, perovskite crystallinity, and charge carrier lifetime significantly improved with the Cl incorporation. By optimizing the molar ratio of MABr and PbCl2, we achieved the optimal Cl-doped concentration in the perovskite film. 19.14% efficiency for a small area cell and 15.11% efficiency for a 5 × 5 cm2 large area mini-module were achieved based on the mesoporous structured devices. These results suggest that Cl-incorporated triple-cation perovskite (labeled CsFAMAClx) is an attractive absorber for producing efficient large area PSCs.

Graphical abstract: Suppressed hysteresis and enhanced performance of triple cation perovskite solar cell with chlorine incorporation

Supplementary files

Article information

Article type
Paper
Submitted
31 10月 2018
Accepted
19 11月 2018
First published
20 11月 2018

J. Mater. Chem. C, 2018,6, 13157-13161

Suppressed hysteresis and enhanced performance of triple cation perovskite solar cell with chlorine incorporation

L. Li, P. Zhou, J. Li, Y. Mo, W. Huang, J. Xiao, W. Li, Z. Ku, J. Zhong, Y. Peng, Y. Cheng and F. Huang, J. Mater. Chem. C, 2018, 6, 13157 DOI: 10.1039/C8TC05484C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements