| 沉淀法合成纳米晶长余辉材料Y2O2S∶Eu3+，Ti |
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| 引用本文： | 贺干武,刘应亮,张俊文.沉淀法合成纳米晶长余辉材料Y2O2S∶Eu3+，Ti[J].无机化学学报,2007,23(2):315-318. |
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| 作者姓名： | 贺干武 刘应亮 张俊文 |
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| 作者单位： | 1. 暨南大学化学系,广州,510632;邵阳学院生物与化学工程系,邵阳,422000
2. 暨南大学化学系,广州,510632 |
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| 基金项目： | 国家自然科学基金;广东省自然科学基金;广东省广州市科技计划 |
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| 摘 要： | The long-lasting phosphorescent materials, yttrium oxysulfides doped by Eu and Ti, were systhesized by coprecipitation with their subsequent thermal decomposition in the presence of sulphur. The products were characterized by XRD, TEM, phosphorescent spectra, and thermoluminescence. The XRD results indicate that the lowest synthesis temperature is 700 ℃. From the TEM, the average diameter of particles was in the range of 60～120 nm, and augmented with the increase of temperature. The materials under UV excitation presented well afterglow from the transition of 5D0,1 → 7FJ of Eu3+, and the persistent time was about 2 h. The long-lasting afterglow mechanism was discussed, too.
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| 关 键 词： | 长余辉发光 共沉淀法 纳米晶 缺陷 |
| 文章编号： | 1001-4861(2007)02-0315-04 |
| 修稿时间： | 2006-08-22 |
Synthesis of Nanocrystalline Y2O2S:Eu3+,Ti Long-lasting Phosphorescen Material by Coprecipitation |
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| HE Gan-Wu,LIU Ying-Liang and ZHANG Jun-Wen.Synthesis of Nanocrystalline Y2O2S:Eu3+,Ti Long-lasting Phosphorescen Material by Coprecipitation[J].Chinese Journal of Inorganic Chemistry,2007,23(2):315-318. |
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| Authors: | HE Gan-Wu LIU Ying-Liang and ZHANG Jun-Wen |
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| Institution: | Department of Chemistry, Jinan University, Guangzhou 510632;Department of Biology and Chemical Engineering, Shaoyang College, Shaoyang, Hunan 422000,Department of Chemistry, Jinan University, Guangzhou 510632 and Department of Chemistry, Jinan University, Guangzhou 510632 |
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| Abstract: | |
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| Keywords: | long-lasting phosphorescence coprecipitation method nanocrystalline trap |
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