Effects of yttrium codoping on photoluminescence of erbium-doped TiO 2 films

Chu Chi Ting; San-Yuan Chen; Wen Feng Hsieh; Hsin Yi Lee

doi:10.1063/1.1413490

Effects of yttrium codoping on photoluminescence of erbium-doped TiO ₂ films

Chu Chi Ting, San-Yuan Chen^*, Wen Feng Hsieh, Hsin Yi Lee

^*此作品的通信作者

材料科學與工程學系

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56 引文斯高帕斯（Scopus）

摘要

Er ³⁺-Y ³⁺ codoped TiO ² films were prepared on a fused silica substrate by the sol-gel process. The effect of Y ³⁺ codoping on the ∼1.54 μm photoluminescence (PL) properties of Er ³⁺-doped TiO ₂ films are investigated. Enhancement of PL properties due to Y ³⁺ codoping by a factor of 10 for intensity and of 1.5 for the full width at half maximum in comparison with the Er ³⁺-Al ³⁺ codoped SiO ₂ system has been observed in the film annealed at Er ³⁺:Y ³⁺:Ti ⁴⁺=5:30(∼50): 100. Extended x-ray absorption fine structure measurements show that the local chemical environment of Er ³⁺ ions in the Er ³⁺-Y ³⁺ codoped TiO ₂ films is similar to that in Er ₂O ₃. The average spatial distance between Er ³⁺ ions is enlarged due to the partial substitution of Y ³⁺ for Er ³⁺ ions in the Er ₂O ₃-like local structure. It is believed that the more intense PL emission of the Er ³⁺-Y ³⁺ codoped TiO ₂ films can be attributed to the better dispersion and distorted local structure of Er ³⁺ ions in the TiO ₂ host matrix by yttrium codoping.

原文	English
頁（從 - 到）	5564-5569
頁數	6
期刊	Journal of Applied Physics
卷	90
發行號	11
DOIs	https://doi.org/10.1063/1.1413490
出版狀態	Published - 1 12月 2001

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title = "Effects of yttrium codoping on photoluminescence of erbium-doped TiO 2 films",

abstract = "Er 3+-Y 3+ codoped TiO 2 films were prepared on a fused silica substrate by the sol-gel process. The effect of Y 3+ codoping on the ∼1.54 μm photoluminescence (PL) properties of Er 3+-doped TiO 2 films are investigated. Enhancement of PL properties due to Y 3+ codoping by a factor of 10 for intensity and of 1.5 for the full width at half maximum in comparison with the Er 3+-Al 3+ codoped SiO 2 system has been observed in the film annealed at Er 3+:Y 3+:Ti 4+=5:30(∼50): 100. Extended x-ray absorption fine structure measurements show that the local chemical environment of Er 3+ ions in the Er 3+-Y 3+ codoped TiO 2 films is similar to that in Er 2O 3. The average spatial distance between Er 3+ ions is enlarged due to the partial substitution of Y 3+ for Er 3+ ions in the Er 2O 3-like local structure. It is believed that the more intense PL emission of the Er 3+-Y 3+ codoped TiO 2 films can be attributed to the better dispersion and distorted local structure of Er 3+ ions in the TiO 2 host matrix by yttrium codoping.",

author = "Ting, {Chu Chi} and San-Yuan Chen and Hsieh, {Wen Feng} and Lee, {Hsin Yi}",

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AU - Ting, Chu Chi

AU - Chen, San-Yuan

AU - Hsieh, Wen Feng

AU - Lee, Hsin Yi

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Er 3+-Y 3+ codoped TiO 2 films were prepared on a fused silica substrate by the sol-gel process. The effect of Y 3+ codoping on the ∼1.54 μm photoluminescence (PL) properties of Er 3+-doped TiO 2 films are investigated. Enhancement of PL properties due to Y 3+ codoping by a factor of 10 for intensity and of 1.5 for the full width at half maximum in comparison with the Er 3+-Al 3+ codoped SiO 2 system has been observed in the film annealed at Er 3+:Y 3+:Ti 4+=5:30(∼50): 100. Extended x-ray absorption fine structure measurements show that the local chemical environment of Er 3+ ions in the Er 3+-Y 3+ codoped TiO 2 films is similar to that in Er 2O 3. The average spatial distance between Er 3+ ions is enlarged due to the partial substitution of Y 3+ for Er 3+ ions in the Er 2O 3-like local structure. It is believed that the more intense PL emission of the Er 3+-Y 3+ codoped TiO 2 films can be attributed to the better dispersion and distorted local structure of Er 3+ ions in the TiO 2 host matrix by yttrium codoping.

AB - Er 3+-Y 3+ codoped TiO 2 films were prepared on a fused silica substrate by the sol-gel process. The effect of Y 3+ codoping on the ∼1.54 μm photoluminescence (PL) properties of Er 3+-doped TiO 2 films are investigated. Enhancement of PL properties due to Y 3+ codoping by a factor of 10 for intensity and of 1.5 for the full width at half maximum in comparison with the Er 3+-Al 3+ codoped SiO 2 system has been observed in the film annealed at Er 3+:Y 3+:Ti 4+=5:30(∼50): 100. Extended x-ray absorption fine structure measurements show that the local chemical environment of Er 3+ ions in the Er 3+-Y 3+ codoped TiO 2 films is similar to that in Er 2O 3. The average spatial distance between Er 3+ ions is enlarged due to the partial substitution of Y 3+ for Er 3+ ions in the Er 2O 3-like local structure. It is believed that the more intense PL emission of the Er 3+-Y 3+ codoped TiO 2 films can be attributed to the better dispersion and distorted local structure of Er 3+ ions in the TiO 2 host matrix by yttrium codoping.

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Effects of yttrium codoping on photoluminescence of erbium-doped TiO 2 films

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Effects of yttrium codoping on photoluminescence of erbium-doped TiO ₂ films