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Title: 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]; ORCiD logo [1]
  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}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1021/acsenergylett.6b00592

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Cited by: 16 works
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