Luminescent Properties of Thermoinduced Active Centers
in Quartz-Like Glass Activated by Bismuth

S. V. Firstov^a, M. A. Girsova^b, E. M. Dianov^a, and T. V. Antropova^b

^aScientific Center of Fiber Optics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119333 Russia

^bGrebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034
Russia

e-mail: antr2@yandex.ru, sergei_firstov@mail.ru, girsovamarina@rambler.ru

Received January 28, 2014

Abstracts—The spectral–luminescent properties of the synthesized bismuth-containing quartz-like glass
exposed to heat treatment have been studied. The appearance of the thermoinduced bismuth centers of lumines-
cence, which are the result of the reduction of Bi³⁺ ions, has been observed. It has been shown that the reduction
of Bi³⁺ ions into Bi²⁺ proceeds at 870C. It has been determined that the activation of bismuth centers of IR
luminescence in quartz-like glass appears at the temperatures above the glass transition temperature of quartz-
like glass T_g ~ 1400C.

Keywords: porous glass, quartz-like glass, bismuth, luminescence

DOI: 10.1134/S1087659614050046

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