Jump to main content
Jump to site search


Magnetic-field-induced energy bandgap reduction of perovskite KMnF3

Author affiliations

Abstract

Broad impact may be anticipated when an energy bandgap is varied substantially by a small change in the physical environment. Such possibility has now been discovered by the example of a perovskite structure of KMnF3 in this paper, where photoluminescence, X-ray diffraction, scanning electron microscope and conductivity measurements were conducted, and the bandgap reduced up to 20% when a small magnet was placed beneath the substrate. It was also found that the electrical conductivity increased in the meantime by more than 15 folds under the 0.6 Tesla field strength. Such reduction in perovskite bandgap and enhancement in the transport properties were also observed by us in other structures, such as CH3NH3PbI3 and CsPbBr3. These discoveries are expected to improve the device performance and accelerate the commercialization.

Graphical abstract: Magnetic-field-induced energy bandgap reduction of perovskite KMnF3

Back to tab navigation

Supplementary files

Article information


Submitted
07 Jan 2020
Accepted
13 Feb 2020
First published
13 Feb 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

Magnetic-field-induced energy bandgap reduction of perovskite KMnF3

R. T. Wang, A. F. Xu, L. W. Yang, J. Y. Chen, A. Kitai and G. Xu, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC00088D

Social activity

Search articles by author

Spotlight

Advertisements