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

Abstract

Perovskite-phase cesium bismuth halide (Cs 3Bi 2X 9; 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 Bi 0 seeds, and morphology was controlled by precursor and seed concentration. The Cs 3Bi 2I 9 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.

Authors:
 [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1556931
Alternate Identifier(s):
OSTI ID: 1434096
Report Number(s):
IS-J-9654
Journal ID: ISSN 1359-7345; CHCOFS
Grant/Contract Number:  
AC02-07CH11358; DGE1247194
Resource Type:
Accepted Manuscript
Journal Name:
ChemComm
Additional Journal Information:
Journal Volume: 54; Journal Issue: 29; Journal ID: ISSN 1359-7345
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Nelson, R. D., Santra, K., Wang, Y., Hadi, A., Petrich, J. W., and Panthani, M. G. Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals. United States: N. p., 2018. Web. doi:10.1039/c7cc07223f.
Nelson, R. D., Santra, K., Wang, Y., Hadi, A., Petrich, J. W., & Panthani, M. G. Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals. United States. doi:10.1039/c7cc07223f.
Nelson, R. D., Santra, K., Wang, Y., Hadi, A., Petrich, J. W., and Panthani, M. G. Tue . "Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals". United States. doi:10.1039/c7cc07223f. https://www.osti.gov/servlets/purl/1556931.
@article{osti_1556931,
title = {Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals},
author = {Nelson, R. D. and Santra, K. and Wang, Y. and Hadi, A. and Petrich, J. W. and Panthani, M. G.},
abstractNote = {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.},
doi = {10.1039/c7cc07223f},
journal = {ChemComm},
number = 29,
volume = 54,
place = {United States},
year = {2018},
month = {3}
}

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