| 溴氧化镧的缺陷发光 |
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| 引用本文： | 张俊文,刘应亮,张静娴,袁定胜,容建华,黄浪欢.溴氧化镧的缺陷发光[J].广州化学,2005,30(4):1-3. |
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| 作者姓名： | 张俊文 刘应亮 张静娴 袁定胜 容建华 黄浪欢 |
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| 作者单位： | 暨南大学,化学系,广东,广州,510632;暨南大学,化学系,广东,广州,510632;暨南大学,化学系,广东,广州,510632;暨南大学,化学系,广东,广州,510632;暨南大学,化学系,广东,广州,510632;暨南大学,化学系,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金资助项目(20171018,50472077)，广东省自然科学基金资助项目(36706,013201) |
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| 摘 要： | 用高温固相法合成了具有缺陷发光的溴氧化镧基质。对样品进行了X-射线衍射、荧光光谱和热释光谱的测试。荧光光谱分析得出在1000℃合成溴氧化镧基质在350nm到500nm存在两个宽带发射,通过与LaOF、LaOCl的荧光光谱和热释光谱对比,得出溴氧化镧基质的发光归结于溴的缺陷,通过计算发现两种不同类型的缺陷能级分别为0.74eV,0.70eV。
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| 关 键 词： | 缺陷发光 溴氧化镧 热释光谱 |
| 文章编号： | 1009-220X(2005)04-0001-03 |
| 修稿时间： | 2005年3月7日 |
Defect Luminescence of Lanidide Oxybromide |
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| ZHANG Jun-wen,LIU Ying-liang,ZHANG Jing-xian,YUAN Ding-sheng,RONG Jian-hua,HUANG Lang-huan.Defect Luminescence of Lanidide Oxybromide[J].Guangzhou Chemistry,2005,30(4):1-3. |
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| Authors: | ZHANG Jun-wen LIU Ying-liang ZHANG Jing-xian YUAN Ding-sheng RONG Jian-hua HUANG Lang-huan |
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| Institution: | ZHANG Jun-wen,LIU Ying-liang*,ZHANG Jing-xian,YUAN Ding-sheng,RONG Jian-hua,HUANG Lang-huan |
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| Abstract: | The host of LaOBr,which has defect luminescence,was synthesized by high-temperature solid-state method.The XRD,photoluminescence and thermoluminescence were studied.Two band emission located in 400 nm and 450 nm were observed,and it was concluded that the band emissions were due to the defects of bromine comparing the fluoscence and thermally luminescence with LaFO,LaClO.The trap energies produced by bromine near(LaO)nn+ which have different structure,were calculated to be 0.74 eV,0.70 eV. |
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| Keywords: | luminescence of defect LaOBr thermoluminescence |
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