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Title: Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c7cc07223f· OSTI ID:1556931

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 perovskite nanocrystals.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358; DGE1247194
OSTI ID:
1556931
Alternate ID(s):
OSTI ID: 1434096
Report Number(s):
IS-J-9654; CHCOFS
Journal Information:
ChemComm, Vol. 54, Issue 29; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 49 works
Citation information provided by
Web of Science

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Bleifreie Halogenid‐Perowskit‐Nanokristalle: Kristallstrukturen, Synthese, Stabilitäten und optische Eigenschaften journal December 2019
Lead‐Free Halide Perovskite Nanocrystals: Crystal Structures, Synthesis, Stabilities, and Optical Properties journal January 2020
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