Issue 78, 2019
From the journal:

Chemical Communications

Incorporation of γ-butyrolactone (GBL) dramatically lowers the phase transition temperature of formamidinium-based metal halide perovskites†

Shuai Ruan,a   Rong Fan,b   Narendra Pai, ORCID logo c   Jianfeng Lu, ORCID logo f   Nathan A. S. Webster,b   Yinlan Ruan,d   Yi-Bing Chengae  and  Christopher R. McNeill ORCID logo *a  

* Corresponding authors

a Department of Materials Science and Engineering, Monash University, Clayton, Victoria, Australia
E-mail: Christopher.McNeill@monash.edu

b CSIRO Mineral Resources, Private Bag 10, Clayton South, Victoria, Australia

c School of Chemistry, Monash University, Victoria 3800, Clayton, Australia

d ARC Centre of Excellence for Nanoscale BioPhotonics, Institute for Photonics and Advanced Sensing, the University of Adelaide, Adelaide, SA 5005, Australia

e State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

f Department of Chemical Engineering, Monash University, Victoria 3800, Australia

Abstract

We demonstrate that the δ to α phase transition temperature of formamidinium-based perovskites is reduced by ∼50 °C through the incorporation of ∼2 wt% γ-butyrolactone (GBL) into the crystal lattice. The intercalation of GBL is found to expand the unit cell of the δ-phase, reducing the energy barrier for thermal conversion.

Graphical abstract: Incorporation of γ-butyrolactone (GBL) dramatically lowers the phase transition temperature of formamidinium-based metal halide perovskites

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Article information

DOI
https://doi.org/10.1039/C9CC05753F
Article type
Communication
Submitted
25 Jul 2019
Accepted
02 Sep 2019
First published
02 Sep 2019

Chem. Commun., 2019,55, 11743-11746

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Incorporation of γ-butyrolactone (GBL) dramatically lowers the phase transition temperature of formamidinium-based metal halide perovskites

S. Ruan, R. Fan, N. Pai, J. Lu, N. A. S. Webster, Y. Ruan, Y. Cheng and C. R. McNeill, Chem. Commun., 2019, 55, 11743 DOI: 10.1039/C9CC05753F

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