Kinetics of enhanced photogeneration of E′ centers in oxygen-deficient silica

Hiroyuki Nishikawa; Eiki Watanabe; Daisuke Ito; Yoshimichi Ohki

doi:10.1016/0022-3093(94)90695-5

Kinetics of enhanced photogeneration of E′ centers in oxygen-deficient silica

Hiroyuki Nishikawa, Eiki Watanabe, Daisuke Ito, Yoshimichi Ohki

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The kinetics of the generation of E′ centers induced by a 6.4 eV excimer laser were investigated. Enhanced defect generation was observed in OH-containing oxygen-deficient silicas. The increased E′ centers were found to be correlated with an absorption band at 5.7 eV. The intensity of the 5.7 eV band α, as a function of the laser fluence, F, follows a simple formula of α(F) = α_s[1 - exp(- DF)], where the values of α_s and the decay coefficient, D, depend on the concentrations of SiH and SiOH bonds.

Original language	English
Pages (from-to)	179-184
Number of pages	6
Journal	Journal of Non-Crystalline Solids
Volume	179
Issue number	C
DOIs	https://doi.org/10.1016/0022-3093(94)90695-5
Publication status	Published - 1994 Nov 4
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(94)90695-5

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title = "Kinetics of enhanced photogeneration of E′ centers in oxygen-deficient silica",

abstract = "The kinetics of the generation of E′ centers induced by a 6.4 eV excimer laser were investigated. Enhanced defect generation was observed in OH-containing oxygen-deficient silicas. The increased E′ centers were found to be correlated with an absorption band at 5.7 eV. The intensity of the 5.7 eV band α, as a function of the laser fluence, F, follows a simple formula of α(F) = αs[1 - exp(- DF)], where the values of αs and the decay coefficient, D, depend on the concentrations of SiH and SiOH bonds.",

author = "Hiroyuki Nishikawa and Eiki Watanabe and Daisuke Ito and Yoshimichi Ohki",

note = "Funding Information: The authors acknowledge the technical support for VUV-absorption measurements from Dr Masami Fujisawa at SOR-RING of The Institute for Solid State Physics, the University of Tokyo. This work is partly supported by the Yazaki Memorial Foundation for Science and Technology and a Grant-in-Aid for Encouragement of Young Scientists (A) (No. 05750295) from the Ministry of Education, Science and Culture of Japan.",

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doi = "10.1016/0022-3093(94)90695-5",

language = "English",

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T1 - Kinetics of enhanced photogeneration of E′ centers in oxygen-deficient silica

AU - Nishikawa, Hiroyuki

AU - Watanabe, Eiki

AU - Ito, Daisuke

AU - Ohki, Yoshimichi

N1 - Funding Information: The authors acknowledge the technical support for VUV-absorption measurements from Dr Masami Fujisawa at SOR-RING of The Institute for Solid State Physics, the University of Tokyo. This work is partly supported by the Yazaki Memorial Foundation for Science and Technology and a Grant-in-Aid for Encouragement of Young Scientists (A) (No. 05750295) from the Ministry of Education, Science and Culture of Japan.

PY - 1994/11/4

Y1 - 1994/11/4

N2 - The kinetics of the generation of E′ centers induced by a 6.4 eV excimer laser were investigated. Enhanced defect generation was observed in OH-containing oxygen-deficient silicas. The increased E′ centers were found to be correlated with an absorption band at 5.7 eV. The intensity of the 5.7 eV band α, as a function of the laser fluence, F, follows a simple formula of α(F) = αs[1 - exp(- DF)], where the values of αs and the decay coefficient, D, depend on the concentrations of SiH and SiOH bonds.

AB - The kinetics of the generation of E′ centers induced by a 6.4 eV excimer laser were investigated. Enhanced defect generation was observed in OH-containing oxygen-deficient silicas. The increased E′ centers were found to be correlated with an absorption band at 5.7 eV. The intensity of the 5.7 eV band α, as a function of the laser fluence, F, follows a simple formula of α(F) = αs[1 - exp(- DF)], where the values of αs and the decay coefficient, D, depend on the concentrations of SiH and SiOH bonds.

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Kinetics of enhanced photogeneration of E′ centers in oxygen-deficient silica

Abstract

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