Electron paramagnetic resonance studies of photorefractive crystals II: Fe3+ doped Bi12SiO20 with copper vapour laser illumination in 10-100 K range

Porwal, N. K. ; Kadam, R. M. ; Babu, Y. ; Sastry, M. D. ; Aggarwal, M. D. ; Venkateswarlu, Putcha (1997) Electron paramagnetic resonance studies of photorefractive crystals II: Fe3+ doped Bi12SiO20 with copper vapour laser illumination in 10-100 K range Pramana - Journal of Physics, 48 (4). pp. 929-935. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/48/4/929-93...

Related URL: http://dx.doi.org/10.1007/BF02845596

Abstract

Photo-induced charge transfer and its kinetics were investigated in Bi12SiO20 in 10-300 K temperature range, using EPR of Fe3+ centre, underin situ illumination with copper vapour laser (CVL). The decay kinetics was found to follow double exponential behaviour. Relaxation of the photo-induced electron transfer to the preillumination condition occurred even at 10 K. Shallow traps were, therefore, associated with the electron trapping, leading to a better understanding of the fast photorefractive response of BSO.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Electron Paramagnetic Resonance; Bismuth Silicon Oxide; Photorefraction; Laser
ID Code:68628
Deposited On:08 Nov 2011 04:06
Last Modified:18 May 2016 15:22

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