Angle-sensitive and fast photovoltage of silver nanocluster embeded ZnO thin films induced by 1.064-μm pulsed laser  

作　　者：赵嵩卿 杨立敏 刘闻炜 赵昆 周岳亮 周庆莉 

机构地区：[1]Department of Mathematics and Physics,China University of Petroleum(Beijing) [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences [3]Beijing Key Laboratory for Terahertz Spectroscopy and Imaging,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,Department of Physics,Capital Normal University

出　　处：《Chinese Physics B》2010年第8期559-562,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.60877038,50672132,60778034 and 10804077);Program for New Century Excellent Talents in University,Research Fund for the Doctoral Program of the Higher Education of China(Grant No.200804250006);Key Project of the Chinese Ministry of Education(Grant No.107020);the Natural Science Foundation of Beijing(Grant No.4082026)

摘　　要：Silver nanocluster embedded ZnO composite thin film was observed to have an angle-sensitive and fast photovoltaic effect in the angle range from -90° to 90° , its peak value and the polarity varied regularly with the angle of incidence of the 1.064-μm pulsed Nd：YAG laser radiation onto the ZnO surface. Meanwhile, for each photovoltaic signal, its rising time reached -2 ns with an open-circuit photovoltage of -2 ns full width at half-maximum. This angle-sensitive fast photovoltaic effect is expected to put this composite film a candidate for angle-sensitive and fast photodetector.Silver nanocluster embedded ZnO composite thin film was observed to have an angle-sensitive and fast photovoltaic effect in the angle range from -90° to 90° , its peak value and the polarity varied regularly with the angle of incidence of the 1.064-μm pulsed Nd：YAG laser radiation onto the ZnO surface. Meanwhile, for each photovoltaic signal, its rising time reached -2 ns with an open-circuit photovoltage of -2 ns full width at half-maximum. This angle-sensitive fast photovoltaic effect is expected to put this composite film a candidate for angle-sensitive and fast photodetector.

关 键 词：angle-sensitive detector ZnO thin film silver nanocluster fast photovoltage 

分 类 号：O484.41[理学—固体物理]