Issue 25, 2019

Nuclei position-control and crystal growth-guidance on frozen substrates for high-performance perovskite solar cells

Abstract

Nucleation and crystal growth are key stages for high-quality perovskite films that dominate the performance of perovskite solar cells. However, the position of nuclei in the films and the orientation of the crystal growth have not yet been intendedly controlled during their fabrication. In this study, we developed a method of spin-coating perovskite films on frozen substrates to control the position of the nuclei and the direction of the crystal growth at the same time. In this way, the position of the crystal nuclei and the growth orientation of the perovskite crystals in the perovskite films can be simultaneously controlled. A high-quality perovskite film with grains spanning vertically the entire film thickness has been obtained using this new method. And an efficient inverted planar solar cell (ITO/PEDOT:PSS/CH3NH3PbI3/PC61BM/BCP/Ag) with the highest power conversion efficiency of 17.14% and open-circuit voltage of 1.14 V has been achieved by using this technique.

Graphical abstract: Nuclei position-control and crystal growth-guidance on frozen substrates for high-performance perovskite solar cells

Supplementary files

Article information

Article type
Paper
Submitted
01 Apr 2019
Accepted
14 May 2019
First published
15 May 2019

Nanoscale, 2019,11, 12108-12115

Nuclei position-control and crystal growth-guidance on frozen substrates for high-performance perovskite solar cells

G. Wang, L. Liao, L. Niu, L. Chen, W. Li, C. Xu, E. Mbeng, Y. Yao, D. Liu and Q. Song, Nanoscale, 2019, 11, 12108 DOI: 10.1039/C9NR02777G

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