| 透射式负电子亲和势GaN光电阴极的光谱响应研究 |
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| 引用本文： | 王晓晖,常本康,钱芸生,高频,张益军,乔建良,杜晓晴.透射式负电子亲和势GaN光电阴极的光谱响应研究[J].物理学报,2011,60(5):57902-057902. |
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| 作者姓名： | 王晓晖 常本康 钱芸生 高频 张益军 乔建良 杜晓晴 |
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| 作者单位： | (1)南京理工大学电子工程与光电技术学院,南京 210094; (2)重庆大学光电工程学院,重庆 400030 |
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| 基金项目： | 国家自然科学基金 (批准号:60871012,60701013)资助的课题. |
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| 摘 要： | 利用金属有机化合物化学气相淀积(MOCVD)生长了发射层厚度为150 nm、掺杂浓度为1.6×1017 cm-3的透射式GaN光电阴极,并在超高真空激活系统中对其进行了激活.通过多信息量测试系统进行了测试,发现透射式负电子亲和势(NEA)GaN光电阴极的量子效率曲线成一个"门"的形状,在255—355 nm波段有较大且平坦的响应,在290 nm处取得最大值为13%,由于AlN缓冲层对短波段光的吸收系数较大,在小于255 nm的波段量子效率出现了下降,当波长大于3
关键词：
透射式
NEA GaN光电阴极
量子效率
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| 关 键 词： | 透射式 NEA GaN光电阴极 量子效率 |
| 收稿时间： | 2010-07-20 |
Study of spectral response for transmission-mode NEA GaN photocathodes |
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| Wang Xiao-Hui,Chang Ben-Kang,Qian Yun-Sheng,Gao Pin,Zhang Yi-Jun,Qiao Jian-Liang,Du Xiao-Qing.Study of spectral response for transmission-mode NEA GaN photocathodes[J].Acta Physica Sinica,2011,60(5):57902-057902. |
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| Authors: | Wang Xiao-Hui Chang Ben-Kang Qian Yun-Sheng Gao Pin Zhang Yi-Jun Qiao Jian-Liang Du Xiao-Qing |
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| Institution: | Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;Institute of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science & Technology,Nanjing 210094,China;College of Optoelectronic Engineering,Chongqing University,Chongqing 400030,China |
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| Abstract: | |
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| Keywords: | transmission-mode NEA GaN photocathodes quantum efficiency |
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