White-light emitting ZnO-SiO2 nanocomposite thin films prepared by sputtering method

Yu Yun Peng*, Tsung-Eong Hsien, Chia Hung Hsu

*Corresponding author for this work

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

Abstract

ZnO-SiO2 nanocomposite thin films were prepared using RF sputtering method without substrate heating. The photoluminance (PL) measurements showed that the ZnO-SiO2 nanocomposite thin films are able to emit white light consisting of violet, blue, and green-yellow band emissions. The blue emission was attributed to the large amount of ZnO/SiO 2 interfaces, which enlarges the depletion layer width and then enhances the related transition. Further analyses indicated that the defect structure of samples could be manipulated by the amount and distribution of ZnO nanoparticles in SiO2 matrix to yield distinct luminescence property.

Original languageEnglish
Title of host publicationProgress in Semiconductor Materials V - Novel Materials and Electronic and Optoelectronic Applications
Pages533-538
Number of pages6
StatePublished - 25 Aug 2006
Event2005 MRS Fall Meeting - Boston, MA, United States
Duration: 28 Nov 20052 Dec 2005

Publication series

NameMaterials Research Society Symposium Proceedings
Volume891
ISSN (Print)0272-9172

Conference

Conference2005 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period28/11/052/12/05

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