Structure and photoluminescence of metal oxide core-shell nanowire arrays

M. A. Thomas, J. B. Cui, F. Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Metal oxide core-shell nanowire arrays composed of electrodeposited ZnO nanowires and atomic layer deposited Al2O3, ZnO, and TiO2 shells were fabricated at low process temperatures. The structural and photoluminescence (PL) properties of the core-shell structures were investigated and distinctive features were induced by the shell coatings. Due in part to their low temperature deposition, the effects of annealing on the core-shell nanowires were also studied in detail. The room temperature and low temperature PL of the nanowire cores are affected by the annealing treatments and the shell layers, with diverse effects observed depending on the shell material. Evidence for solid state reactions between the ZnO core and metal-oxide shell at increased annealing temperatures was also observed, leading to further changes in their optical properties.

Original languageEnglish
Title of host publicationWide-Bandgap Semiconductor Materials and Devices 13
PublisherElectrochemical Society Inc.
Pages41-50
Number of pages10
Edition7
ISBN (Electronic)9781607683179
ISBN (Print)9781566779593
DOIs
StatePublished - 2012
Event13th Symposium on Wide Bandgap Semiconductor Materials and Devices - 221st ECS Meeting - Seattle, WA, United States
Duration: May 6 2012May 10 2012

Publication series

NameECS Transactions
Number7
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference13th Symposium on Wide Bandgap Semiconductor Materials and Devices - 221st ECS Meeting
Country/TerritoryUnited States
CitySeattle, WA
Period05/6/1205/10/12

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