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材料工程  2013, Vol. 0 Issue (5): 1-5    DOI: 10.3969/j.issn.1001-4381.2013.05.001
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
ZnO白漆的质子辐照损伤与光学性能退化机理
王旭东1, 易忠2, 沈自才2, 顾鹏飞1
1. 北京科技大学 新材料技术研究院, 北京 100083;
2. 可靠性与环境工程技术重点实验室, 北京 100094
Proton Radiation Damage in ZnO-pigmented White Paints and Optical Degradation Mechanisms
WANG Xu-dong1, YI Zhong2, SHEN Zi-cai2, GU Peng-fei1
1. Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China;
2. Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing 100094, China
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摘要 为进一步阐明ZnO白漆的辐照损伤与光学性能退化机理,在模拟的空间环境下对S781白漆进行了150keV质子辐照实验。质子辐照后,在原位条件下测试了光谱反射系数和太阳吸收比的退化规律,并利用模拟仿真和光致荧光光谱研究了ZnO白漆与质子间的微观交互作用和辐照诱发缺陷。结果表明,质子辐照下ZnO颜料发生电离生成-1价锌空位,是S781白漆出现b带吸收和光学性能退化的主要原因。此外,本工作支持了ZnO绿带荧光源于锌空位的第一原理计算结果。
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关键词 空间环境氧化锌白漆质子辐照锌空位    
Abstract:S781 white paints were irradiated with 150-keV protons in a simulated space environment, in order to elucidate more definitely the irradiation damage and optical degradation mechanisms for ZnO-pigmented white paints. After proton irradiations, the degradation in spectral reflectance and solar absorptance was measured in situ. The interaction between the protons and S781 white paints, and the irradiation-induced defects, were also studied through simulations and photoluminescence. The results show that the zinc vacancies in the 1-charge state are due to the ionization of the ZnO pigments, and are responsible for the b band absorption and optical degradation. Furthermore, this work also supports the first-principles results of considering zinc vacancies as the defects responsible for the green luminescence band from ZnO.
Key wordsspace environment    ZnO-pigmented white paint    proton irradiation    zinc vacancy
收稿日期: 2012-11-01      出版日期: 2013-05-20
中图分类号: 

V524.3

 
  TB303

 
基金资助:

可靠性与环境工程技术重点实验室开放基金(2011);国家自然科学基金资助项目(50502006);北京市科技新星计划资助项目(2008A029);北京市腐蚀、磨蚀与表面技术重点实验室和北京市教委共建项目(SYS100080419)

作者简介: 王旭东(1974-),男,工学博士,副教授,主要从事空间材料的辐照损伤和腐蚀与防护研究,联系地址:北京市海淀区学院路30号北京科技大学腐蚀与防护中心(100083),E-mail:xdwang@ustb.edu.cn
引用本文:   
王旭东, 易忠, 沈自才, 顾鹏飞. ZnO白漆的质子辐照损伤与光学性能退化机理[J]. 材料工程, 2013, 0(5): 1-5.
WANG Xu-dong, YI Zhong, SHEN Zi-cai, GU Peng-fei. Proton Radiation Damage in ZnO-pigmented White Paints and Optical Degradation Mechanisms. Journal of Materials Engineering, 2013, 0(5): 1-5.
链接本文:  
http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2013.05.001      或      http://jme.biam.ac.cn/CN/Y2013/V0/I5/1
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