| The fluorescence and thermoluminescence characteristics of α-Al2O3:C ceramics |
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| 引用本文： | 张斌,陆神洲,张浩佳,杨秋红.The fluorescence and thermoluminescence characteristics of α-Al2O3:C ceramics[J].中国物理 B,2010,19(7):77805-077805. |
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| 作者姓名： | 张斌 陆神洲 张浩佳 杨秋红 |
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| 作者单位： | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 60578041), the Sciences and Technology Commission Foundation of Shanghai, China (Grant No. 08520707300) and the Key Basic Research Project of Science and Technology of Shanghai (Grant No. 09JC1406500). |
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| 摘 要： | This paper reports that polycrystalline α-Al2O3:C ceramics are fabricated by conventional ceramics process. The excitation, emission spectra, thermoluminescence (TL) and optical stimulated luminescence (OSL) of α-Al2O3:C polycrystalline ceramics are investigated. There exists 410nm maximum emission peak which is caused by recombination of an electron with F+ centre to produce an excited F centre. The samples show three clear TL glow peaks at 405, 493 and 610K. The attenuation constant of exponentially decaying fast component (τ1) and slow component(τ2) of OSL curve are 8.43s and 41.73s, respectively. Those fluorescence and thermoluminescence characteristics are similar with α-Al2O3:C crystal.
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| 关 键 词： | α-Al2O3:C ceramics thermoluminescence optical stimulated luminescence |
The fluorescence and thermoluminescence characteristics of $\alpha$-Al2O3:C ceramics |
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| Zhang Bin,Lu Shen-Zhou,Zhang Hao-Jia and Yang Qiu-Hong.The fluorescence and thermoluminescence characteristics of $\alpha$-Al2O3:C ceramics[J].Chinese Physics B,2010,19(7):77805-077805. |
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| Authors: | Zhang Bin Lu Shen-Zhou Zhang Hao-Jia and Yang Qiu-Hong |
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| Affiliation: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | This paper reports that polycrystalline α-Al2O3:C ceramics are fabricated by conventional ceramics process. The excitation, emission spectra, thermoluminescence (TL) and optical stimulated luminescence (OSL) of α-Al2O3:C polycrystalline ceramics are investigated. There exists 410nm maximum emission peak which is caused by recombination of an electron with F+ centre to produce an excited F centre. The samples show three clear TL glow peaks at 405, 493 and 610K. The attenuation constant of exponentially decaying fast component (τ1) and slow component(τ2) of OSL curve are 8.43s and 41.73s, respectively. Those fluorescence and thermoluminescence characteristics are similar with α-Al2O3:C crystal. |
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| Keywords: | α-Al2O3:C ceramics thermoluminescence optical stimulated luminescence |
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