| NPB/Alq3 界面激子拆分研究 |
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| 引用本文： | 王爱芬,孙晓宇,李文彬,郑晓燕,游胤涛.NPB/Alq3 界面激子拆分研究[J].海洋学报,2010,32(9):6527-6531. |
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| 作者姓名： | 王爱芬 孙晓宇 李文彬 郑晓燕 游胤涛 |
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| 作者单位： | 杭州电子科技大学理学院,杭州 310012;复旦大学应用表面物理国家重点实验室,上海 200433;复旦大学应用表面物理国家重点实验室,上海 200433;复旦大学应用表面物理国家重点实验室,上海 200433;复旦大学应用表面物理国家重点实验室,上海 200433 |
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| 基金项目： | 国家自然科学基金(批准号:10574025)和上海市科委项目资助的课题. |
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| 摘 要： | 采用瞬态光电压技术研究了NPB和Alq3界面激子拆分过程和拆分机理.对NPB和Alq3组成双层结构的样品,在脉冲355nm激光照射下,测量样品的瞬态光电压信号,通过对不同结构的和有界面激子阻挡层的样品的瞬态光电压分析,并排除了ITO/有机外界面对激子拆分的影响,得出了NPB/ Alq3界面激子拆分机理是向Alq3 注入电子,向NPB注入空穴.
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| 关 键 词： | 激子拆分 界面 瞬态光电压 |
Study on the exciton dissociation at the NPB-Alq3 interface |
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| Wang Ai-Fen,Sun Xiao-Yu,Li Wen-Bin,Zheng Xiao-Yan and You Yin-Tao.Study on the exciton dissociation at the NPB-Alq3 interface[J].Acta Oceanologica Sinica (in Chinese),2010,32(9):6527-6531. |
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| Authors: | Wang Ai-Fen Sun Xiao-Yu Li Wen-Bin Zheng Xiao-Yan and You Yin-Tao |
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| Institution: | School of science , Hangzhou Dianzi University, Hangzhou 310012, China;Surface Physics Laboratory , National Key Laboratory, Fudan University, Shanghai 200433, China;Surface Physics Laboratory , National Key Laboratory, Fudan University, Shanghai 200433, China;Surface Physics Laboratory , National Key Laboratory, Fudan University, Shanghai 200433, China;Surface Physics Laboratory , National Key Laboratory, Fudan University, Shanghai 200433, China |
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| Abstract: | Exciton dissociation process and its mechanism at the NPB-Alq3 interface are studied by means of transient photovoltage techniques. For bilayer structured samples made from NPB and Alq3, the transient photovoltage upon 355 nm pulsed laser irradiation was measured. By analysis of the transient photovoltage of samples with different structures or with interface exciton blocking layer that climinates the effect of exciton dissociation at the external interface, it is concluded that the mechanism of exciton dissociation at the NPB-Alq3interface results in holes injected into NPB and electrons injected into Alq3. |
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| Keywords: | exciton dissociation interface transient photovoltage |
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