xSrO.yAl2O3:Eu的光致发光 |
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引用本文: | 廉世勋,李承志,吴振国,张华京,毛向辉.xSrO.yAl2O3:Eu的光致发光[J].湖南师范大学自然科学学报,2001,24(1). |
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作者姓名: | 廉世勋 李承志 吴振国 张华京 毛向辉 |
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作者单位: | 湖南师范大学化学系, |
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基金项目: | 国家自然科学基金,湖南省教育厅科研项目 |
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摘 要: | 研究了xSrO.yAl2O3:Eu体系的光致发光;发现当y/x<1.5时,产生余辉较短的红色发光,属于Eu3+离子4f→4f特征跃迁发射.当y/x>1.5时,产生具有超长余辉的绿色或蓝色发光,属于Eu2+离子5d→4f特征跃迁发射.
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关 键 词: | 光致发光 |
Photoluminescence of xSrO.yAl2O3:Eu |
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Abstract: | The photoluminescence of xSrO.yAl2O3 doped with europium ionswere studied.It was found that the luminescence is red-emitting and short afterglow which belong to the 4f→4f electron transition of Eu3+ when y/x<1.5; however, when y/x>1.5, the luminescence is blue or green emiting and long afterglow which belong to the 5d→4f electron transition of Eu2+. |
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Keywords: | xSrO yAl2O3 Eu |
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