ZnO/Al2O3 core-shell nanorod arrays: Growth, structural characterization, and luminescent property

C. Y. Chen, C. A. Lin, M. J. Chen, G. R. Lin, J. H. He

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

Abstract

We reported the aqueous chemical method to fabricate the well-aligned ZnO/Al2O3 nanocrystal (NC) core-shell nanorod arrays (NRAs). Structural characterization showed that the shell layers are composed of α -Al2O3 nanocrystals. Photoluminescence measurements showed the enhancement of near-band-edge (NBE) emission of ZnO NRAs due to the presence of Al2O3 NC shells. The Al 2O3 NC shell layer resulting in flatband effect near ZnO surface leads to a stronger overlap of the wavefunctions of electrons and holes in the ZnO core, further enhancing the NBE emission. This approach should be very useful in designing many other core-shell NRAs for creating varieties of high-efficiency optoelectronic devices.

Original languageEnglish (US)
Title of host publicationINEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings
Pages1457-1458
Number of pages2
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 3rd International Nanoelectronics Conference, INEC 2010 - Hongkong, China
Duration: Jan 3 2010Jan 8 2010

Other

Other2010 3rd International Nanoelectronics Conference, INEC 2010
CountryChina
CityHongkong
Period01/3/1001/8/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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