| 基于光谱响应测试的光电阴极性能评估 |
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| 引用本文： | 乔建良,高有堂,牛军,田思,常本康. 基于光谱响应测试的光电阴极性能评估[J]. 南阳理工学院学报, 2009, 1(1): 24-26 |
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| 作者姓名： | 乔建良 高有堂 牛军 田思 常本康 |
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| 作者单位： | 南阳理工学院电子与电气工程系,河南,南阳,473004;南京理工大学电子工程与光电技术学院,江苏,南京,210094;南阳理工学院电子与电气工程系,河南,南阳,473004;南京理工大学电子工程与光电技术学院,江苏,南京,210094 |
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| 摘 要： | NEA光电阴极性能评估的目的就是求出NEA光电阴极有关特性参数，从而进一步分析光电阴极性能优劣的原因。动态光谱响应测试技术为NEA光电阴极的制备及其性能评估提供了实时直观的参考，是获得高性能光电阴极的重要保证。本文通过对NEA光电阴极光谱响应的在线测试，采用曲线拟合方法，实现了电子表面逸出几率、扩散长度、后界面复合速率及积分灵敏度的评估。
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| 关 键 词： | NEA光电阴极 光谱响应 性能评估 曲线拟合 |
PERFORMANCE EVALUATION FOR PHOTOCATHODE BASED ON SPECTRAL RESPONSE MEASUREMENT |
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| QIAO Jian-liang,GAO You-tang,NIU Jun,TIAN Si,CHANG Ben-kang. PERFORMANCE EVALUATION FOR PHOTOCATHODE BASED ON SPECTRAL RESPONSE MEASUREMENT[J]. Journal of Nanyang Institute of Technology, 2009, 1(1): 24-26 |
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| Authors: | QIAO Jian-liang GAO You-tang NIU Jun TIAN Si CHANG Ben-kang |
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| Affiliation: | QIAO Jian-liang, GAO You-tang , NIU Jun , TIAN Si , CHANG Ben-kang( 1. Department of Electronic ＆ Electric Engineering, Nanyang Institute of Technology, Nanyang 473004, China ; 2. Institute of Electron＆ Eogineering and Optoelectronic Technology, Nanjing University of Science ＆ Technology, Nanjing 210094, China) |
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| Abstract: | The purpose of performance evaluation for NEA photoeathode is to get the relating performance parameters of NEA photocathode, and the reasons that the photoeathodes are good or not are analysed. Dynamic spectral response measurement can offer real time and intuitionistie referenees for NEA photoeathode preparation and it＇ s performanee evaluation, and it can offer importance ensurement for getting high performance photocathodes. By testing for spectral response of NEA photocathode and using the curve fitting methode, the escape probability, the diffusion length, the recombination rate of back interface and the integral sensitivity were eveluated out in this paper. |
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| Keywords: | NEA Photocathode Spectral Response Performance Evaluation Curve Fitting |
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