Array of ultraviolet luminescent ZnO nanodots fabricated by pulsed laser deposition using an anodic aluminium oxide template

Chang Hyun Bae; Seung Min Park; Sung Chan Park; Jeong Sook Ha

doi:10.1088/0957-4484/17/2/006

Array of ultraviolet luminescent ZnO nanodots fabricated by pulsed laser deposition using an anodic aluminium oxide template

Chang Hyun Bae, Seung Min Park, Sung Chan Park, Jeong Sook Ha

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

Ordered arrays of ZnO nanodots were fabricated by pulsed laser deposition (PLD) using an anodic aluminium oxide (AAO) nanopore membrane. Hexagonal-shaped ZnO nanodots with an average diameter of 60 nm and a periodicity of 100 nm were uniformly assembled into hexagonally ordered nanopores of the AAO membrane. Control of the oxygen pressure used in PLD resulted in a preferential photoluminescence (PL) at 380 nm from the ZnO nanodots: keeping the higher O₂ pressure gave a dominant PL peak in the UV range over the visible range, which is attributed to the reduction of the number of oxygen vacancies.

Original language	English
Pages (from-to)	381-384
Number of pages	4
Journal	Nanotechnology
Volume	17
Issue number	2
DOIs	https://doi.org/10.1088/0957-4484/17/2/006
Publication status	Published - 2006 Jan 28

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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abstract = "Ordered arrays of ZnO nanodots were fabricated by pulsed laser deposition (PLD) using an anodic aluminium oxide (AAO) nanopore membrane. Hexagonal-shaped ZnO nanodots with an average diameter of 60 nm and a periodicity of 100 nm were uniformly assembled into hexagonally ordered nanopores of the AAO membrane. Control of the oxygen pressure used in PLD resulted in a preferential photoluminescence (PL) at 380 nm from the ZnO nanodots: keeping the higher O2 pressure gave a dominant PL peak in the UV range over the visible range, which is attributed to the reduction of the number of oxygen vacancies.",

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AB - Ordered arrays of ZnO nanodots were fabricated by pulsed laser deposition (PLD) using an anodic aluminium oxide (AAO) nanopore membrane. Hexagonal-shaped ZnO nanodots with an average diameter of 60 nm and a periodicity of 100 nm were uniformly assembled into hexagonally ordered nanopores of the AAO membrane. Control of the oxygen pressure used in PLD resulted in a preferential photoluminescence (PL) at 380 nm from the ZnO nanodots: keeping the higher O2 pressure gave a dominant PL peak in the UV range over the visible range, which is attributed to the reduction of the number of oxygen vacancies.

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Array of ultraviolet luminescent ZnO nanodots fabricated by pulsed laser deposition using an anodic aluminium oxide template

Abstract

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