Title
Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals
Publication Date
3-13-2018
Department
Ames Laboratory; Chemistry; Chemical and Biological Engineering
Campus Units
Chemical and Biological Engineering, Chemistry, Ames Laboratory
OSTI ID+
1556931
Report Number
IS-J 9654
DOI
10.1039/C7CC07223F
Journal Title
Chemical Communications
Volume Number
54
Issue Number
29
First Page
3640
Last Page
3643
Abstract
Perovskite-phase cesium bismuth halide (Cs3Bi2X9; X = Cl, Br, I) nanocrystals were synthesized using a hot-injection approach. These nanocrystals adopted ordered-vacancy perovskite crystal structures and demonstrated composition-tunable optical properties. Growth occurred by initial formation of Bi0 seeds, and morphology was controlled by precursor and seed concentration. The Cs3Bi2I9 nanocrystals demonstrated excellent stability under ambient conditions for several months. Contrary to previous reports, we find that photoluminescence originates from the precursor material as opposed to the Cs3Bi2X9 nanocrystals.
DOE Contract Number(s)
AC02-07CH11358
Language
en
Department of Energy Subject Categories
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Publisher
Iowa State University Digital Repository, Ames IA (United States)
