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Title: Assembly and Photocarrier Dynamics of Heterostructured Nanocomposite Photoanodes from Multicomponent Colloidal Nanocrystals

Journal Article · · Nano Letters
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  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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Multicomponent oxides and their heterostructures are rapidly emerging as promising light absorbers to drive oxidative chemistry. To fully exploit their functionality, precise tuning of their composition and structure is crucial. Here, we report a novel solution-based route to nanostructured bismuth vanadate (BiVO4) that facilitates the assembly of BiVO4/metal oxide (TiO2, WO3, and Al2O3) nanocomposites in which the morphology of the metal oxide building blocks is finely tailored. Here, the combination of transient absorption spectroscopy-spanning from picoseconds to second time scales-and photoelectrochemical measurements reveals that the achieved structural tunability is key to understanding and directing charge separation, transport, and efficiency in these complex oxide heterostructured films.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1532170
Journal Information:
Nano Letters, Vol. 15, Issue 11; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (4)

Assembly of β-Cu 2 V 2 O 7 /WO 3 heterostructured nanocomposites and the impact of their composition on structure and photoelectrochemical properties journal January 2018
Charge Transport in Two-Photon Semiconducting Structures for Solar Fuels journal September 2016
Solution phase synthesis of large-area ultra-thin two dimensional layered Bi 2 Se 3 : role of Cu-intercalation and substitution journal December 2019
WO 3 /BiVO 4 : impact of charge separation at the timescale of water oxidation journal January 2019

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Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
colloidal synthesis
ternary oxides
assembly
photoelectrochemistry
charge dynamics