Issue 18, 2023

Engineering the intermediate adduct phase to control the crystallization of perovskites for efficient and stable perovskite solar cells

Abstract

Perovskite solar cells (PSCs), on account of their ever-increasing power conversion efficiency (PCE), are captivating industrialists. Despite this, the performance of perovskite solar cells, especially the long life span, is the main barrier to PSCs’ commercial deployment where the inefficient perovskite layer is always convicted as the key reason behind it. In reality, the perovskite layer suffers from different intermediate transformations where dimethyl sulfoxide (DMSO), forming PbI2·DMSO intermediates, plays an essential role in retarding the rapid crystallization of perovskite. Therefore, these intermediate phases govern the morphologies and crystallinities of the final perovskite films. In the comparison of FAPbI3 and MAPbI3, which are the two most studied single-cation perovskites, during intermediate phase conversions, the PbI2·MAI·DMSO adduct provides high-quality perovskite than the PbI2·FAI·DMSO adduct, which leads to the poor film quality of FA-based single cation and mixed cation perovskites. Herein, the intermolecular exchange of DMSO with FAI in the PbI2·MAI·DMSO adduct is performed to get MAxFA1−xPbI3 films where the grain size is dramatically enhanced, and a PCE of 20.79% is obtained with superior long term stability.

Graphical abstract: Engineering the intermediate adduct phase to control the crystallization of perovskites for efficient and stable perovskite solar cells

Supplementary files

Article information

Article type
Research Article
Submitted
10 Cax 2023
Accepted
19 Qas 2023
First published
20 Qas 2023

Mater. Chem. Front., 2023,7, 4080-4091

Engineering the intermediate adduct phase to control the crystallization of perovskites for efficient and stable perovskite solar cells

M. Mateen, Z. Li, H. Shi, H. Huang, D. Khan, R. A. Ashraaf Khan, M. Rafiq, J. A. S. Syed, A. Khaliq, G. A. Ashraf, J. M. Tsiba, Z. Lu, D. Chi and S. Huang, Mater. Chem. Front., 2023, 7, 4080 DOI: 10.1039/D3QM00537B

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