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Effect of electric field on one-quantum photodecay of oxygen-deficient centers in germanosilicate fibers

Effect of electric field on one-quantum photodecay of oxygen-deficient centers in germanosilicate fibers
Effect of electric field on one-quantum photodecay of oxygen-deficient centers in germanosilicate fibers
The effect of a strong electric field (up to 106 V/cm) on one-quantum UV photoexcitation and photodecomposition of germanium oxygen deficient centers (GODC) in twin-hole germanosilicate fibers with internal wire electrodes is reported. The fiber has been irradiated with the UV light of a deuterium lamp and triplet photoluminescence of GODC has been used to monitor the kinetics of its photodecay. Applying such an electric field did not affect the spectral characteristics of GODC but increased the rate of their one-quantum photodecomposition, while direct photoionization and charge separation did not take place. We have also shown that this effect is caused by the suppression of secondary photoinduced recombination processes of intermediates, rather than by acceleration of primary photodecomposition of GODC.
0003-6951
1578-1580
Rybaltovskii, A.O.
44dcfeb9-05d6-4603-b043-f0451236e13c
Zavorotny, Y.S.
cf581b7b-c516-4a1c-ba1a-a0722ca03bee
Chernov, P.V.
328936fd-34d4-4320-977a-b5beac2e0241
Bagratashvili, V.N.
aaee958a-7cc8-415e-ab28-1ef0cca4dbf3
Tsypina, S.I.
f9802189-0c7d-48d6-a023-ca053de5f82d
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Rybaltovskii, A.O.
44dcfeb9-05d6-4603-b043-f0451236e13c
Zavorotny, Y.S.
cf581b7b-c516-4a1c-ba1a-a0722ca03bee
Chernov, P.V.
328936fd-34d4-4320-977a-b5beac2e0241
Bagratashvili, V.N.
aaee958a-7cc8-415e-ab28-1ef0cca4dbf3
Tsypina, S.I.
f9802189-0c7d-48d6-a023-ca053de5f82d
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Rybaltovskii, A.O., Zavorotny, Y.S., Chernov, P.V., Bagratashvili, V.N., Tsypina, S.I. and Kazansky, P.G. (2000) Effect of electric field on one-quantum photodecay of oxygen-deficient centers in germanosilicate fibers. Applied Physics Letters, 77 (11), 1578-1580. (doi:10.1063/1.1308536).

Record type: Article

Abstract

The effect of a strong electric field (up to 106 V/cm) on one-quantum UV photoexcitation and photodecomposition of germanium oxygen deficient centers (GODC) in twin-hole germanosilicate fibers with internal wire electrodes is reported. The fiber has been irradiated with the UV light of a deuterium lamp and triplet photoluminescence of GODC has been used to monitor the kinetics of its photodecay. Applying such an electric field did not affect the spectral characteristics of GODC but increased the rate of their one-quantum photodecomposition, while direct photoionization and charge separation did not take place. We have also shown that this effect is caused by the suppression of secondary photoinduced recombination processes of intermediates, rather than by acceleration of primary photodecomposition of GODC.

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Published date: 2000

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Local EPrints ID: 13616
URI: http://eprints.soton.ac.uk/id/eprint/13616
ISSN: 0003-6951
PURE UUID: 5e70cb68-d8f2-442f-8d9c-b2a3a2e4bda2

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Date deposited: 01 Jan 2005
Last modified: 09 Dec 2019 19:14

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