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

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 barrie...

Full description

Saved in:
Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-09, Vol.55 (78), p.11743-11746
Main Authors: Ruan, Shuai, Fan, Rong, Pai, Narendra, Lu, Jianfeng, Webster, Nathan A. S, Ruan, Yinlan, Cheng, Yi-Bing, McNeill, Christopher R
Format: Article
Language:English
Subjects:
Butyrolactone
Crystal lattices
Crystals
Metal halides
Perovskites
Phase transitions
Transition temperature
Unit cell
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. The phase transition temperature of formamidinium-based perovskites can be dramatically reduced through the incorporation of γ-butyrolactone (GBL).
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc05753f