Optical properties of ZnO-based core-shell nanostructures

F. Fang; X. Y. Chen; A. M.C. Ng; A. B. Djurišić; Kok Wai CHEAH; W. K. Chan

doi:10.1016/j.tsf.2010.11.015

Optical properties of ZnO-based core-shell nanostructures

F. Fang, X. Y. Chen, A. M.C. Ng, A. B. Djurišić, Kok Wai CHEAH, W. K. Chan

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

4 Citations (Scopus)

Abstract

ZnO nanorods were prepared by electrodeposition, and the effect of different shells (MgO and TiO_x) on their optical properties has been studied. Shells have also been prepared using a simple solution based method. The two types of shells exhibited different effects on the optical properties of ZnO nanorods, mainly due to different annealing temperature required for synthesis process. The improvement in the emission intensity from the samples under optical excitation did not result in changes in the emission spectra or increase in emission intensity under electrical excitation for the same bias voltage. However, improved luminance for the same bias current was observed for most core-shell structures.

Original language	English
Pages (from-to)	2296-2301
Number of pages	6
Journal	Thin Solid Films
Volume	519
Issue number	7
DOIs	https://doi.org/10.1016/j.tsf.2010.11.015
Publication status	Published - 31 Jan 2011

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

User-Defined Keywords

Light-emitting diodes
Nanorods
Oxides

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10.1016/j.tsf.2010.11.015

Cite this

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title = "Optical properties of ZnO-based core-shell nanostructures",

abstract = "ZnO nanorods were prepared by electrodeposition, and the effect of different shells (MgO and TiOx) on their optical properties has been studied. Shells have also been prepared using a simple solution based method. The two types of shells exhibited different effects on the optical properties of ZnO nanorods, mainly due to different annealing temperature required for synthesis process. The improvement in the emission intensity from the samples under optical excitation did not result in changes in the emission spectra or increase in emission intensity under electrical excitation for the same bias voltage. However, improved luminance for the same bias current was observed for most core-shell structures.",

keywords = "Light-emitting diodes, Nanorods, Oxides",

author = "F. Fang and Chen, {X. Y.} and Ng, {A. M.C.} and Djuri{\v s}i{\'c}, {A. B.} and CHEAH, {Kok Wai} and Chan, {W. K.}",

note = "Funding Information: Financial support from the Strategic Research Theme, University Development Fund, Small Project Grant, and Innovation & Technology Fund grant ITS/129/08 is acknowledged.",

year = "2011",

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doi = "10.1016/j.tsf.2010.11.015",

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volume = "519",

pages = "2296--2301",

journal = "Thin Solid Films",

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TY - JOUR

T1 - Optical properties of ZnO-based core-shell nanostructures

AU - Fang, F.

AU - Chen, X. Y.

AU - Ng, A. M.C.

AU - Djurišić, A. B.

AU - CHEAH, Kok Wai

AU - Chan, W. K.

N1 - Funding Information: Financial support from the Strategic Research Theme, University Development Fund, Small Project Grant, and Innovation & Technology Fund grant ITS/129/08 is acknowledged.

PY - 2011/1/31

Y1 - 2011/1/31

N2 - ZnO nanorods were prepared by electrodeposition, and the effect of different shells (MgO and TiOx) on their optical properties has been studied. Shells have also been prepared using a simple solution based method. The two types of shells exhibited different effects on the optical properties of ZnO nanorods, mainly due to different annealing temperature required for synthesis process. The improvement in the emission intensity from the samples under optical excitation did not result in changes in the emission spectra or increase in emission intensity under electrical excitation for the same bias voltage. However, improved luminance for the same bias current was observed for most core-shell structures.

AB - ZnO nanorods were prepared by electrodeposition, and the effect of different shells (MgO and TiOx) on their optical properties has been studied. Shells have also been prepared using a simple solution based method. The two types of shells exhibited different effects on the optical properties of ZnO nanorods, mainly due to different annealing temperature required for synthesis process. The improvement in the emission intensity from the samples under optical excitation did not result in changes in the emission spectra or increase in emission intensity under electrical excitation for the same bias voltage. However, improved luminance for the same bias current was observed for most core-shell structures.

KW - Light-emitting diodes

KW - Nanorods

KW - Oxides

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U2 - 10.1016/j.tsf.2010.11.015

DO - 10.1016/j.tsf.2010.11.015

M3 - Journal article

AN - SCOPUS:78751646167

SN - 0040-6090

VL - 519

SP - 2296

EP - 2301

JO - Thin Solid Films

JF - Thin Solid Films

IS - 7

ER -

Optical properties of ZnO-based core-shell nanostructures

Abstract

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