Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 2, Pages 235-238Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06217k
Keywords
-
Categories
Funding
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-FC02-04ER15533]
- Division of Materials Sciences and Engineering Office of Basic Energy Sciences of the U.S. Department of Energy [DE-SC0014334]
Ask authors/readers for more resources
The role of chloride in improving the stability of mixed halide perovskites was investigated using spectroelectrochemistry. The study found that increasing the chloride content suppresses iodine mobility and enhances stability. Implications of iodine mobility induced by hole accumulation on overall stability were discussed.
The role of chloride in improving the stability of mixed halide perovskites (MAPbCl(x)Br(0.5(1-x))I(0.5(1-x)))(3) is probed using spectroelectrochemistry. The injection of holes into mixed halide perovskite films through applied anodic bias results in the selective migration of iodine with ultimate expulsion into the electrolyte. Increasing the Cl content (x = 0 to 0.1) in the mixed halide perovskite suppresses the iodine mobility and thus decreases the rate of its expulsion into the solution. Implications of iodine mobility induced by hole accumulation and its impact on overall stability is discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
