Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel

The-Long Phan, Seong-Cho Yu, Manh-Huong Phan, Thomas P. J. Han

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present, here, the results of a study of photoluminescence spectra of Cr3+-doped MgAl2O4 natural spinel in a given wavenumber range between 26,300 and 12,500 cm-1. By using several excitation sources, we observed a new broadband, namely K, with a peak at 15,547 cm-1 and the transition process of luminescence lines among the electronic levels of the Cr3+ ion, such as R, Ni (i = 1-4) lines. In terms of the experimental results and the configuration coordinates, we strongly propose that the K-band might originate from the electric dipole transition 2Eg 4A2g, in a strong crystal field with Dq/B 2.3. The decay-time and luminescence-rise-time curves on the zero-phonon lines and the K-band were also recorded.
LanguageEnglish
Pages63-66
Number of pages4
JournalJournal of the Korean Physical Society
Volume45
Issue number1
Publication statusPublished - Jul 2004

Fingerprint

extremely high frequencies
spinel
luminescence
photoluminescence
electronic levels
electric dipoles
crystal field theory
broadband
decay
curves
configurations
excitation
ions

Keywords

  • chromium
  • crystal field interactions
  • excited states
  • impurity absorption spectra
  • magnesium compounds
  • nonradiative transitions
  • optical materials
  • photoluminescence
  • time resolved spectra

Cite this

Phan, T-L., Yu, S-C., Phan, M-H., & Han, T. P. J. (2004). Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel. Journal of the Korean Physical Society, 45(1), 63-66.
Phan, The-Long ; Yu, Seong-Cho ; Phan, Manh-Huong ; Han, Thomas P. J. / Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel. In: Journal of the Korean Physical Society. 2004 ; Vol. 45, No. 1. pp. 63-66.
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abstract = "We present, here, the results of a study of photoluminescence spectra of Cr3+-doped MgAl2O4 natural spinel in a given wavenumber range between 26,300 and 12,500 cm-1. By using several excitation sources, we observed a new broadband, namely K, with a peak at 15,547 cm-1 and the transition process of luminescence lines among the electronic levels of the Cr3+ ion, such as R, Ni (i = 1-4) lines. In terms of the experimental results and the configuration coordinates, we strongly propose that the K-band might originate from the electric dipole transition 2Eg 4A2g, in a strong crystal field with Dq/B 2.3. The decay-time and luminescence-rise-time curves on the zero-phonon lines and the K-band were also recorded.",
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Phan, T-L, Yu, S-C, Phan, M-H & Han, TPJ 2004, 'Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel' Journal of the Korean Physical Society, vol. 45, no. 1, pp. 63-66.

Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel. / Phan, The-Long; Yu, Seong-Cho; Phan, Manh-Huong; Han, Thomas P. J.

In: Journal of the Korean Physical Society, Vol. 45, No. 1, 07.2004, p. 63-66.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photoluminescence properties of Cr3+-doped MgAl2O4 natural spinel

AU - Phan, The-Long

AU - Yu, Seong-Cho

AU - Phan, Manh-Huong

AU - Han, Thomas P. J.

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AB - We present, here, the results of a study of photoluminescence spectra of Cr3+-doped MgAl2O4 natural spinel in a given wavenumber range between 26,300 and 12,500 cm-1. By using several excitation sources, we observed a new broadband, namely K, with a peak at 15,547 cm-1 and the transition process of luminescence lines among the electronic levels of the Cr3+ ion, such as R, Ni (i = 1-4) lines. In terms of the experimental results and the configuration coordinates, we strongly propose that the K-band might originate from the electric dipole transition 2Eg 4A2g, in a strong crystal field with Dq/B 2.3. The decay-time and luminescence-rise-time curves on the zero-phonon lines and the K-band were also recorded.

KW - chromium

KW - crystal field interactions

KW - excited states

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KW - magnesium compounds

KW - nonradiative transitions

KW - optical materials

KW - photoluminescence

KW - time resolved spectra

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