Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites

S. S. Kurbanov, G. N. Panin, Y. S. Park, T. W. Kang, Taewhan Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The transmittance, reflectance, photo and cathodoluminescence spectra of a ZnO-filled opal nanocomposite, as well as the spectra of ZnO nanoparticles deposited on sapphire and glass substrates, were investigated. The ZnO nanoparticles have basically a (002) orientation and a regular cone form. They exhibit a strong exciton emission at 380 nm and relatively low green emission at 565 nm. In the ZnO-filled opal nanocomposite a "red shift" of the photonic band gap position in comparison with the bare artificial opal and its effect on the photoluminescence spectra are observed. Quenching of the excitonic emission of the ZnO nanoparticles grown in the opal voids is found and it is assigned to an energy transfer from the ZnO nanoparticles to opal matrix defect centers.

Original languageEnglish
Pages (from-to)617-621
Number of pages5
JournalJournal of the Korean Physical Society
Volume50
Issue number3
StatePublished - 2007 Mar 1

Fingerprint

cathodoluminescence
nanocomposites
nanoparticles
red shift
voids
transmittance
cones
sapphire
energy transfer
quenching
excitons
photonics
reflectance
photoluminescence
glass
defects
matrices

Keywords

  • Cathodoluminescence
  • Opal
  • Photoluminescence
  • Photonic band gap
  • ZnO

Cite this

Kurbanov, S. S., Panin, G. N., Park, Y. S., Kang, T. W., & Kim, T. (2007). Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites. Journal of the Korean Physical Society, 50(3), 617-621.
Kurbanov, S. S. ; Panin, G. N. ; Park, Y. S. ; Kang, T. W. ; Kim, Taewhan. / Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites. In: Journal of the Korean Physical Society. 2007 ; Vol. 50, No. 3. pp. 617-621.
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Kurbanov, SS, Panin, GN, Park, YS, Kang, TW & Kim, T 2007, 'Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites', Journal of the Korean Physical Society, vol. 50, no. 3, pp. 617-621.

Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites. / Kurbanov, S. S.; Panin, G. N.; Park, Y. S.; Kang, T. W.; Kim, Taewhan.

In: Journal of the Korean Physical Society, Vol. 50, No. 3, 01.03.2007, p. 617-621.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photo- and cathodoluminescence studies of ZnO-filled opal nanocomposites

AU - Kurbanov, S. S.

AU - Panin, G. N.

AU - Park, Y. S.

AU - Kang, T. W.

AU - Kim, Taewhan

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N2 - The transmittance, reflectance, photo and cathodoluminescence spectra of a ZnO-filled opal nanocomposite, as well as the spectra of ZnO nanoparticles deposited on sapphire and glass substrates, were investigated. The ZnO nanoparticles have basically a (002) orientation and a regular cone form. They exhibit a strong exciton emission at 380 nm and relatively low green emission at 565 nm. In the ZnO-filled opal nanocomposite a "red shift" of the photonic band gap position in comparison with the bare artificial opal and its effect on the photoluminescence spectra are observed. Quenching of the excitonic emission of the ZnO nanoparticles grown in the opal voids is found and it is assigned to an energy transfer from the ZnO nanoparticles to opal matrix defect centers.

AB - The transmittance, reflectance, photo and cathodoluminescence spectra of a ZnO-filled opal nanocomposite, as well as the spectra of ZnO nanoparticles deposited on sapphire and glass substrates, were investigated. The ZnO nanoparticles have basically a (002) orientation and a regular cone form. They exhibit a strong exciton emission at 380 nm and relatively low green emission at 565 nm. In the ZnO-filled opal nanocomposite a "red shift" of the photonic band gap position in comparison with the bare artificial opal and its effect on the photoluminescence spectra are observed. Quenching of the excitonic emission of the ZnO nanoparticles grown in the opal voids is found and it is assigned to an energy transfer from the ZnO nanoparticles to opal matrix defect centers.

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KW - Opal

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KW - Photonic band gap

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