Excited state absorption in chromium doped Li2B4O7 glass

Cz. Koepke, K. Wisniewski, M. Grinberg, A. Majchrowski, T.P.J. Han

Research output: Contribution to journalArticle

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Abstract

Excited state absorption (ESA) measurements of the Cr:Li2B4O7 glass (Cr:LBO-glass) along with preliminary interpretation are presented. The presence of chromium in its tri- (d3) and hexa-(d0) valence states is observed. Both Cr3+ and Cr6+ ions appear to contribute in the de-excitation processes and can be attributed in the ESA spectra under excitation wavelengths at 308 nm, 488 nm, 515 nm and 610 nm. The ESA spectra detected with UV excitation have been interpreted in terms of transitions in the framework of the Cr5+O- centre, which forms after charge-transfer-type absorption in the [CrO4]2- group. Assumption of the double-electron state of the 3d22p4 electronic configuration together with crystal-field-split states of the 3d12p5 configuration allowed us to reproduce the obtained ESA spectra. The ESA spectra of the Cr3+ ions have different characteristics and are related to transitions to the conduction band.
LanguageEnglish
Pages2701-2716
Number of pages16
JournalJournal of Physics: Condensed Matter
Volume13
Issue number11
DOIs
Publication statusPublished - 19 Mar 2001

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Chromium
Excited states
chromium
Absorption spectra
Glass
glass
excitation
absorption spectra
Ions
Electron transitions
Conduction bands
Electron energy levels
Charge transfer
electron states
configurations
Wavelength
Crystals
crystal field theory
conduction bands
ions

Keywords

  • excited state absorption
  • chromium doped Li2B4O7 glass
  • nanoscience

Cite this

Koepke, C., Wisniewski, K., Grinberg, M., Majchrowski, A., & Han, T. P. J. (2001). Excited state absorption in chromium doped Li2B4O7 glass. Journal of Physics: Condensed Matter, 13(11), 2701-2716. https://doi.org/10.1088/0953-8984/13/11/324
Koepke, Cz. ; Wisniewski, K. ; Grinberg, M. ; Majchrowski, A. ; Han, T.P.J. / Excited state absorption in chromium doped Li2B4O7 glass. In: Journal of Physics: Condensed Matter. 2001 ; Vol. 13, No. 11. pp. 2701-2716.
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Koepke, C, Wisniewski, K, Grinberg, M, Majchrowski, A & Han, TPJ 2001, 'Excited state absorption in chromium doped Li2B4O7 glass' Journal of Physics: Condensed Matter, vol. 13, no. 11, pp. 2701-2716. https://doi.org/10.1088/0953-8984/13/11/324

Excited state absorption in chromium doped Li2B4O7 glass. / Koepke, Cz.; Wisniewski, K.; Grinberg, M.; Majchrowski, A.; Han, T.P.J.

In: Journal of Physics: Condensed Matter, Vol. 13, No. 11, 19.03.2001, p. 2701-2716.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Excited state absorption in chromium doped Li2B4O7 glass

AU - Koepke, Cz.

AU - Wisniewski, K.

AU - Grinberg, M.

AU - Majchrowski, A.

AU - Han, T.P.J.

PY - 2001/3/19

Y1 - 2001/3/19

N2 - Excited state absorption (ESA) measurements of the Cr:Li2B4O7 glass (Cr:LBO-glass) along with preliminary interpretation are presented. The presence of chromium in its tri- (d3) and hexa-(d0) valence states is observed. Both Cr3+ and Cr6+ ions appear to contribute in the de-excitation processes and can be attributed in the ESA spectra under excitation wavelengths at 308 nm, 488 nm, 515 nm and 610 nm. The ESA spectra detected with UV excitation have been interpreted in terms of transitions in the framework of the Cr5+O- centre, which forms after charge-transfer-type absorption in the [CrO4]2- group. Assumption of the double-electron state of the 3d22p4 electronic configuration together with crystal-field-split states of the 3d12p5 configuration allowed us to reproduce the obtained ESA spectra. The ESA spectra of the Cr3+ ions have different characteristics and are related to transitions to the conduction band.

AB - Excited state absorption (ESA) measurements of the Cr:Li2B4O7 glass (Cr:LBO-glass) along with preliminary interpretation are presented. The presence of chromium in its tri- (d3) and hexa-(d0) valence states is observed. Both Cr3+ and Cr6+ ions appear to contribute in the de-excitation processes and can be attributed in the ESA spectra under excitation wavelengths at 308 nm, 488 nm, 515 nm and 610 nm. The ESA spectra detected with UV excitation have been interpreted in terms of transitions in the framework of the Cr5+O- centre, which forms after charge-transfer-type absorption in the [CrO4]2- group. Assumption of the double-electron state of the 3d22p4 electronic configuration together with crystal-field-split states of the 3d12p5 configuration allowed us to reproduce the obtained ESA spectra. The ESA spectra of the Cr3+ ions have different characteristics and are related to transitions to the conduction band.

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Koepke C, Wisniewski K, Grinberg M, Majchrowski A, Han TPJ. Excited state absorption in chromium doped Li2B4O7 glass. Journal of Physics: Condensed Matter. 2001 Mar 19;13(11):2701-2716. https://doi.org/10.1088/0953-8984/13/11/324