Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine (CuPc)

被引：1

作者：

Li Zhong-Liang

Wu Zhao-Xin ^{[1
]}

Jiao Bo

Mao Gui-Lin

Hou Xun

机构：

[1] Xi An Jiao Tong Univ, Key Lab Photon Technol Informat Shaanxi Prov, Xian 710049, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2010年 / 27卷 / 06期

关键词：

CHARGE INJECTION; SEMICONDUCTORS; DEVICES;

D O I：

10.1088/0256-307X/27/6/067204

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 C-Metal 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 C-j is expected to have little effect on the reverse capacitance of the organic Schottky diode, and the space-charge limited current capacitance C-S is considered to dominate the reverse capacitance, which limits the improvement of frequency characteristics of organic Schottky diodes.

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页数：4

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