| 用吸收差谱研究电子俘获材料的光激励发光 |
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| 引用本文： | 孙力,王永生,何志毅,孟宪国.用吸收差谱研究电子俘获材料的光激励发光[J].光谱学与光谱分析,2005,25(11):1749-1752. |
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| 作者姓名： | 孙力 王永生 何志毅 孟宪国 |
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| 作者单位： | 北京交通大学光电子技术研究所，信息存储、显示与材料开放实验室，北京 100044 |
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| 基金项目： | 国家自然科学基金（10274001）和北京交通大学论文基金资助项目 |
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| 摘 要： | 以SrS:Eu, Sm为例说明可以利用电子俘获材料在光激发前后的吸收谱的差别来获取电子俘获材料光激励发光的信息。电子俘获材料在激发后的吸收光谱同时包含了不同陷阱(杂质)对光激励的吸收情况。因此激发前后的吸收光谱差(吸收差谱)除了能给出与光激励谱相同的信息外，还包含空穴陷阱的激励，光存储总量等信息，因此有助于更全面地了解材料的光激励发光过程。
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| 关 键 词： | 电子俘获材料 吸收光谱 光激励发光 |
| 文章编号： | 1000-0593（2005）11-1749-04 |
| 收稿时间： | 2004-06-06 |
| 修稿时间： | 2005-01-28 |
Study of OSL Property of Electron Trapping Material with Differential Absorption Spectra |
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| SUN Li,WANG Yong-sheng,HE Zhi-yi,MENG Xian-guo.Study of OSL Property of Electron Trapping Material with Differential Absorption Spectra[J].Spectroscopy and Spectral Analysis,2005,25(11):1749-1752. |
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| Authors: | SUN Li WANG Yong-sheng HE Zhi-yi MENG Xian-guo |
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| Institution: | Institute of Optoelectronic Technology, Key Lab of Materials for Information Storage and Display, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | A method,which makes use of difference of absorption in different stages of excitation process,is introduced to get more(information) about optical stimulated luminescence(OSL) properties of electron trapping materials(ETM).Absorption spectra of(excited) ETM contain all absorption of various traps(defects) together.So,the difference between absorption spectra before and after excitation(differential absorption) not only acts as the same as stimulation spectra,but also provides more information,such as holes(stimulation,) total volume of optical storage,etc.This method is helpful in studying OSL properties. |
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| Keywords: | Electron trapping materials Absorption spectrum Optical stimulated luminescence |
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