Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals
- Iowa State Univ., Ames, IA (United States)
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
Cited by: 49 works
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