Effects of annealing atmosphere on photorefractive BaTiO3

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

研究成果: 雜誌貢獻會議論文同行評審


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.

頁(從 - 到)1-9
期刊Proceedings of SPIE - The International Society for Optical Engineering
出版狀態已出版 - 2001
事件Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applicationsn VII, and Optical Data Storage - San Diego, CA, United States
持續時間: 29 7月 200131 7月 2001


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