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Proceedings Paper

Time-resolved exciton-emission spectroscopy of anatase
Author(s): Ilmo Sildos; V. Kiisk; S. Lange; J. Aarik
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Paper Abstract

At low temperatures, time-resolved polarized photoluminescence of anatase single crystals and nanocrystalline thin films was studied in a nanosecond time scale. In both kinds of samples, the emission spectra showed two relatively broad shifted bands peaking at about 2.35 eV and 2.75 eV and possessing decay times of above 1 μs and below 50 ns, respectively. The bands have been interpreted as those originating from the singlet and triplet states of the self-trapped exciton of anatase.

Paper Details

Date Published: 8 August 2003
PDF: 5 pages
Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); doi: 10.1117/12.515702
Show Author Affiliations
Ilmo Sildos, Univ. of Tartu (Estonia)
V. Kiisk, Univ. of Tartu (Estonia)
S. Lange, Univ. of Tartu (Estonia)
J. Aarik, Univ. of Tartu (Estonia)

Published in SPIE Proceedings Vol. 5122:
Advanced Organic and Inorganic Optical Materials
Andris Krumins; Donats Millers; Inta Muzikante; Andris Sternbergs; Vismants Zauls, Editor(s)

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