Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals
Abstract
A selective growth of gold (Au) nanoparticles on the corners of CsPbBr3 nanocrystals (NCs) is made possible with the treatment of Au(III) salts such as Au(III) bromide and Au(III) chloride in solution. The surface bound oleylamine ligands not only stabilize NCs but also facilitate reduction of the Au(III) salts followed by nucleation of the Au nanoparticles on the corners of the perovskite NCs. The luminescence quantum yield of NCs is decreased when Au nanoparticles are formed on the corners of CsPbBr3 NCs, suggesting interaction between the two systems. Formation of Au nanoparticles as well as an anion exchange is seen when Au(III) bromide was replaced with Au(III) chloride as a precursor. This simple strategy of designing perovskite-gold hybrid nanostructures with good colloidal stability offers new opportunities to explore their photocatalytic properties.
- Authors:
-
[1]
- Radiation Laboratory, Department of Chemistry &, Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Publication Date:
- Research Org.:
- Univ. of Notre Dame, IN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1335180
- Alternate Identifier(s):
- OSTI ID: 1426192
- Grant/Contract Number:
- FC02-04ER15533
- Resource Type:
- Published Article
- Journal Name:
- ACS Energy Letters
- Additional Journal Information:
- Journal Name: ACS Energy Letters Journal Volume: 2 Journal Issue: 1; Journal ID: ISSN 2380-8195
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Balakrishnan, Subila K., and Kamat, Prashant V. Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals. United States: N. p., 2016.
Web. doi:10.1021/acsenergylett.6b00592.
Balakrishnan, Subila K., & Kamat, Prashant V. Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals. United States. doi:10.1021/acsenergylett.6b00592.
Balakrishnan, Subila K., and Kamat, Prashant V. Fri .
"Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals". United States. doi:10.1021/acsenergylett.6b00592.
@article{osti_1335180,
title = {Au–CsPbBr 3 Hybrid Architecture: Anchoring Gold Nanoparticles on Cubic Perovskite Nanocrystals},
author = {Balakrishnan, Subila K. and Kamat, Prashant V.},
abstractNote = {A selective growth of gold (Au) nanoparticles on the corners of CsPbBr3 nanocrystals (NCs) is made possible with the treatment of Au(III) salts such as Au(III) bromide and Au(III) chloride in solution. The surface bound oleylamine ligands not only stabilize NCs but also facilitate reduction of the Au(III) salts followed by nucleation of the Au nanoparticles on the corners of the perovskite NCs. The luminescence quantum yield of NCs is decreased when Au nanoparticles are formed on the corners of CsPbBr3 NCs, suggesting interaction between the two systems. Formation of Au nanoparticles as well as an anion exchange is seen when Au(III) bromide was replaced with Au(III) chloride as a precursor. This simple strategy of designing perovskite-gold hybrid nanostructures with good colloidal stability offers new opportunities to explore their photocatalytic properties.},
doi = {10.1021/acsenergylett.6b00592},
journal = {ACS Energy Letters},
number = 1,
volume = 2,
place = {United States},
year = {2016},
month = {12}
}
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DOI: 10.1021/acsenergylett.6b00592
DOI: 10.1021/acsenergylett.6b00592
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