ZnO filled opal arrays: Photo and cathodoluminescence studies

Kurbanov, Saidislam S.; Panin, Gennady N.; Kim, Tae Whan; Kang, Taewon Wang

doi:10.1016/j.ssc.2007.12.032

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ZnO filled opal arrays: Photo and cathodoluminescence studies

Kurbanov, Saidislam S.;
Panin, Gennady N.;
Kim, Tae Whan;
Kang, Taewon Wang

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초록

The photo and cathodoluminescence of zinc oxide (ZnO) filled opal arrays, as well as ZnO nanocrystals prepared by a chemical deposition method were investigated. The photoluminescence (PL) from the arrays was studied using angular resolution. The PL spectra of the filled opal exhibited a dip corresponding to the array's photonic band gap. ZnO nanocrystals embedded in the opal matrix demonstrated quenched excitonic emission while the opal matrix showed enhanced emission. This effect is explained by an energy transfer from ZnO nanocrystals to the opal matrix.

키워드

artificial opal; ZnO; luminescence; SYNTHETIC OPAL; PARTICLE-SIZE; THIN-FILMS; BAND-GAP; PHOTOLUMINESCENCE; EMISSION; LUMINESCENCE; NANOPARTICLES; GROWTH; OXIDE

제목: ZnO filled opal arrays: Photo and cathodoluminescence studies

저자: Kurbanov, Saidislam S.; Panin, Gennady N.; Kim, Tae Whan; Kang, Taewon Wang

DOI: 10.1016/j.ssc.2007.12.032

발행일: 2008-03

유형: Article

저널명: Solid State Communications

권: 145

호: 11-12

페이지: 577 ~ 581