Author： Skorikov V.M. Zakharov I.S. Volkov V.V. Spirin E.A.
Publisher： MAIK Nauka/Interperiodica
ISSN： 0020-1685
Source： Inorganic Materials, Vol.38, Iss.2, 2002-02, pp. : 172-178
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Abstract
The absorption and transmission spectra of Bi_12MO_20 (M = Ge, Si, Ti) sillenite crystals were studied in the range 300–900 nm. Doping and vacuum annealing were found to have a significant effect on the transmission spectra of the crystals both near the fundamental absorption edge and in the long-wavelength region. The spectral dependences of the photocurrent through Bi_12GeO_20 , Bi_12SiO_20 , and Bi_12TiO_20 are also discussed.
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