| Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine （CuPc） |
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| 作者姓名： | LI Zhong-Liang WU Zhao-Xin JIAO Bo MAO Gui-Lin HOU Xun |
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| 作者单位： | Key Laboratory of Photonics Technology for Information （Shaanxi Province）, and Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic and Information Engineering, Xi＇an Jiaotong University, Xi＇an 710049 |
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| 基金项目： | Supported by the National Basic Research Program of China under Grant No 2006CB921602, and the Program for New Century Excellent Talents of Ministry of Educations, and the Technology Program of Shaanxi Province （No 2006K04-c25）. |
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| 摘 要： | The capacitance of an organic Schottky diode based on copper phthalocyanine （CuPc） is investigated. Based on the organic small-signal equivalent model established, we calculate the reverse capacitance CMetal Of the organic Schottky diode with different kinds of metal cathodes （Mg, Al, Au）. It is found that the reverse capacitance of the organic Schottky diode shows behavior as CMg 〉 CAl 〉 CAu at the same frequency, and according to our analysis, the reverse Schottky junction capacitance Cj is expected to have little effect on the reverse capacitance of the organic Schottky diode, and the space-charge limited current capacitance Us is considered to dominate the reverse capacitance, which limits the improvement of frequency characteristics of organic Schottky diodes.
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| 关 键 词： | 肖特基二极管 CuPc 结电容 铜酞菁 空间电荷限制电流 金属阴极 频率特性 等效模型 |
| 收稿时间： | 2010-1-20 |
Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine (CuPc) |
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| LI,Zhong-Liang WU,Zhao-Xin JIAO,Bo MAO,Gui-Lin HOU,Xun.Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine (CuPc)[J].Chinese Physics Letters,2010,27(6):175-178. |
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| Authors: | LI Zhong-Liang WU Zhao-Xin JIAO Bo MAO Gui-Lin HOU Xun |
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| Institution: | Key Laboratory of Photonics Technology for Information (Shaanxi Province), and Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049 |
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| Abstract: | The capacitance of an organic Schottky diode based on copper phthalocyanine (CuPc) is investigated. Based on the organic small-signal equivalent model established, we calculate the reverse capacitance CMetal of the organic Schottky diode with different kinds of metal cathodes (Mg, Al, Au). It is found that the reverse capacitance of the organic Schottky diode shows behavior as C Mg >C Al >C Au at the same frequency, and according to our analysis, the reverse Schottky junction capacitance Cj is expected to have little effect on the reverse capacitance of the organic Schottky diode, and the space-charge limited current capacitance CS is considered to dominate the reverse capacitance, which limits the improvement of frequency characteristics of organic Schottky diodes. |
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| Keywords: | 72 80 Le 84 37 +q 85 30 De |
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