Effects of annealing atmosphere on photorefractive BaTiO3

J. Y. Chang; C. Y. Huang; C. C. Sun

doi:10.1117/12.453999

Effects of annealing atmosphere on photorefractive BaTiO₃

J. Y. Chang, C. Y. Huang, C. C. Sun

Research output: Contribution to journal › Conference article › peer-review

Abstract

Nominally undoped BaTiO₃ crystals, processed in atmospheres of various oxygen partial pressure at 900°C and 1000°C, respectively, were fabricated and systematically investigated. The photorefractive properties are sequentially controlled by the factor from dark decay, deep/shallow trap, deep/shallow trap with hole/electron competition to dark conductivity, as the oxygen partial pressure is reduced. The trend is similar for both of the processing temperature, however, the compensation point is shifted about three of oxygen partial pressure. This can be attributed to a higher oxygen vacancy concentration at higher processing temperature.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4459
DOIs	https://doi.org/10.1117/12.453999
State	Published - 2001
Event	Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applicationsn VII, and Optical Data Storage - San Diego, CA, United States Duration: 29 Jul 2001 → 31 Jul 2001

Keywords

Annealing
BaTiO
Oxidation/reduction
Photorefraction
Two beam coupling

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10.1117/12.453999

Cite this

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title = "Effects of annealing atmosphere on photorefractive BaTiO3",

abstract = "Nominally undoped BaTiO3 crystals, processed in atmospheres of various oxygen partial pressure at 900°C and 1000°C, respectively, were fabricated and systematically investigated. The photorefractive properties are sequentially controlled by the factor from dark decay, deep/shallow trap, deep/shallow trap with hole/electron competition to dark conductivity, as the oxygen partial pressure is reduced. The trend is similar for both of the processing temperature, however, the compensation point is shifted about three of oxygen partial pressure. This can be attributed to a higher oxygen vacancy concentration at higher processing temperature.",

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T1 - Effects of annealing atmosphere on photorefractive BaTiO3

AU - Chang, J. Y.

AU - Huang, C. Y.

AU - Sun, C. C.

PY - 2001

Y1 - 2001

N2 - Nominally undoped BaTiO3 crystals, processed in atmospheres of various oxygen partial pressure at 900°C and 1000°C, respectively, were fabricated and systematically investigated. The photorefractive properties are sequentially controlled by the factor from dark decay, deep/shallow trap, deep/shallow trap with hole/electron competition to dark conductivity, as the oxygen partial pressure is reduced. The trend is similar for both of the processing temperature, however, the compensation point is shifted about three of oxygen partial pressure. This can be attributed to a higher oxygen vacancy concentration at higher processing temperature.

AB - Nominally undoped BaTiO3 crystals, processed in atmospheres of various oxygen partial pressure at 900°C and 1000°C, respectively, were fabricated and systematically investigated. The photorefractive properties are sequentially controlled by the factor from dark decay, deep/shallow trap, deep/shallow trap with hole/electron competition to dark conductivity, as the oxygen partial pressure is reduced. The trend is similar for both of the processing temperature, however, the compensation point is shifted about three of oxygen partial pressure. This can be attributed to a higher oxygen vacancy concentration at higher processing temperature.

KW - Annealing

KW - BaTiO

KW - Oxidation/reduction

KW - Photorefraction

KW - Two beam coupling

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applicationsn VII, and Optical Data Storage

Y2 - 29 July 2001 through 31 July 2001