Light Soaking Phenomena in Organic-Inorganic Mixed Halide Perovskite Single Crystals

Authors

Hye Ryung Byun
Dae Young Park
Hye Min Oh
Gon Namkoong, Old Dominion UniversityFollow
Mun Seok Jeong

Document Type

Article

Publication Date

2017

DOI

10.1021/acsphotonics.7b00797

Publication Title

ACS Photonics

Volume

4

Issue

11

Pages

2813-2820

Abstract

Recently, organic inorganic mixed halide perovskite (MAPbX₃; MA = CH₃NH₃^+, X = Cl^-, Br^-, or I^-) single crystals with low defect densities have been highlighted as candidate materials for high-efficiency photovoltaics and optoelectronics. Here we report the optical and structural investigations of mixed halide perovskite (MAPbBr_3-xI_x) single crystals. Mixed halide perovskite single crystals showed strong light soaking phenomena with light illumination conditions that were correlated to the trapping and detrapping events from defect sites. By systematic investigation with optical analysis, we found that the pseudocubic phase of mixed halide perovskites generates light soaking phenomena. These results indicate that photoinduced changes are related to the existence of multiple phases or halide migrations.

Comments

This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.

Original Publication Citation

Byun, H. R., Park, D. Y., Oh, H. M., Namkoong, G., & Jeong, M. S. (2017). Light soaking phenomena in organic inorganic mixed halide perovskite single crystals. ACS Photonics, 4(11), 2813-2820. doi:10.1021/acsphotonics.7b00797

Repository Citation

Byun, Hye Ryung; Park, Dae Young; Oh, Hye Min; Namkoong, Gon; and Jeong, Mun Seok, "Light Soaking Phenomena in Organic-Inorganic Mixed Halide Perovskite Single Crystals" (2017). Electrical & Computer Engineering Faculty Publications. 139.
https://digitalcommons.odu.edu/ece_fac_pubs/139

ORCID

0000-0002-9795-8981 (Namkoong)