array(2) { ["lab"]=> string(3) "879" ["publication"]=> string(4) "6529" } Optical modulation of persistent photoconductivity in ZnO nanowires - 师文生 课题组 | LabXing

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简介 应用光电纳米材料与器件

大学 中国科学院理化技术研究所 / 光电信息材料与器件
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Optical modulation of persistent photoconductivity in ZnO nanowires

2011
期刊 Applied Physics Letters
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In this study, ZnO nanowires (ZNWs)-based optoelectric devices are found to exhibit strong persistent photoconductivity (PPC) effect. An optical modulation on the PPC effect of the ZNWs with 980 nm infrared (IR) laser has been investigated. It was found that the decay time for the PPC can be significantly shortened by IR irradiation. The modulation mechanism related with the oxygen vacancies and the subband gap excitation is proposed. Based on this mechanism, the modulation behavior of the IR can be well explained. The present optical modulation on the PPC is suggested to have potential applications in enhancing the performance of ZnO-based photodetectors.

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