Issue 43, 2022, Issue in Progress

Photo-enhanced growth of lead halide perovskite crystals and their electro-optical properties

Abstract

Organic–inorganic hybrid perovskites have attracted much attention for opto-electronic applications due to their low trap density, strong light absorption, and superior charge transport performance. Generally, the high efficiency of perovskite electro-optical thin films depends on their high-quality perovskite single crystals. In this work, the external illumination is applied on the perovskite single crystals growing in solution. It was shown that larger size CH3NH3PbI3 single crystals can be obtained under illumination conditions. In addition, CH3NH3PbI3 films are prepared by a one-step spin coating process under illumination, the crystal size and film quality of which have been obviously improved due to the effect of illumination in the film forming process. The efficiency of the average cells based on CH3NH3PbI3 films increased from 15.2% for the normal conditions to 17.7% for the illumination one, which is consistent with the light enhanced growth of CH3NH3PbI3 single crystals in their solution. The “photo-inhibition nucleation” mechanism is proposed to explain the light-induced enhancement of perovskite crystal growth.

Graphical abstract: Photo-enhanced growth of lead halide perovskite crystals and their electro-optical properties

Supplementary files

Article information

Article type
Paper
Submitted
08 Aug 2022
Accepted
17 Sep 2022
First published
29 Sep 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 27775-27780

Photo-enhanced growth of lead halide perovskite crystals and their electro-optical properties

S. Wang, Y. Wang, Q. Wei and J. Wang, RSC Adv., 2022, 12, 27775 DOI: 10.1039/D2RA04919H

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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