This paper describes some investigations aimed at understanding the transport processes of
excess carriers in bismuth germanium oxide (Bi12Ge02o). Spectral photoconductive …

D&a from measurements of optical absorption, photoconductivity, dark conductivity,
thermally stimulated conductivity (TSC), and thermoluminescence JTL) on samples of …

Temperature and intensity dependence of steady state photoconductivity is studied in
amorphous thin films of Ge22Se68Bi 10 prepared by vacuum evaporation …

Bismuth silicon oxide and bismuth germanium oxide were grown by the Czochralski method.
Crystals were typically 2 cm in diameter and 5-cm long. Materials were of 99.999% purity …

When subjected to measurements of temperature‐dependent dark conductivity and
thermally stimulated currents, undoped and lightly doped Bi12GeO20 (BGO) and Bi12SiO20 …

The absorption and transmission spectra of Bi 12 MO 20 (M= Ge, Si, Ti) sillenite crystals
were studied in the range 300–900 nm. Doping and vacuum annealing were found to have …

Temperature and intensity dependence of photoconductivity is studied in amorphous thin
films of Ge 22 Se 78− x Bi x with x= 0, 2 and 10. Transient photoconductivity measurements …

Abstract Absorption of Bi 12 GeO 20 and Bi 12 SiO 20 single crystals doped with Mn and Cr
were investigated before and after illumination with visible light. Pronounced photochromic …

The optical absorption and ESR spectra of Bi 12 GeO 20 and B 12 SiO 20 doped with Mn
have been measured before and after illumination with visible light. Uniaxial stress …

Because of their potential for use in electro-optic devices Bh2GeO. o and Bi,. Si02o have
attracted a great deal of attention. H Most of these studies were aimed at understanding their …