| 光谱学与光谱分析 |
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| Spectral Characteristics of Optical Storage Material CaS∶Eu, Sm |
| JIANG Wei-wei1,XU Zheng1,ZHANG Xi-yan2 |
1. Institute of Optoelectronics Technology, Beijing Jiaotong University, Key Laboratory of Luminescence and Optical Information, Ministry of Education，Beijing 100044，China
2. Material and Chemistry Institute, Changchun University of Science and Technology, Changchun 130022, China |
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Abstract As a typical optical storage material, CaS∶Eu, Sm powders were prepared by wet method in a reduced atmosphere. XRD，emission spectrum, excitation spectrum, photostimulated spectrum, thermal spectrum, and decay curve were measured. The XRD indicates that the lattice of CaS∶Eu, Sm was formed at 1 050 ℃. Spectra analysis results show that UV can excite the sample as an information input source. When excited by ultraviolet lamp and then stimulated by 980 nm laser, the same luminescence with peaks at 635 nm. The photostimulated emission decayed rapidly at first and then slowly. The trap level is deep and can make electrons stable in the trap. The optical storage mechanism of CaS∶Eu, Sm is discussed.
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Received: 2006-06-16
Accepted: 2006-09-18
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Corresponding Authors:
JIANG Wei-wei
E-mail: rosejiangwei@126.com
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| Cite this article: |
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JIANG Wei-wei,XU Zheng,ZHANG Xi-yan. Spectral Characteristics of Optical Storage Material CaS∶Eu, Sm [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(12): 2389-2392.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I12/2389 |
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