Organic heterojunction phototransistor

被引：49

作者：

Zukawa, T ^{[1
]}

Naka, S ^{[1
]}

Okada, H ^{[1
]}

Onnagawa, H ^{[1
]}

机构：

[1] Toyama Univ, Dept Elect & Elect Engn, Toyama 9308555, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 03期

关键词：

D O I：

10.1063/1.1429767

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose an organic heterojunction phototransistor stacked with organic layers of electron and hole transport materials. The materials used in this study are perylene derivative (td-PTC) as the ultrathin base layer and triphenylamine derivative (TPD) as the emitter and collector layers. The current versus voltage characteristics as a function of incident optical intensity are typical of a phototransistor with current saturation. The bipolar transistor operation is confirmed by a comparison with the diode structure of the TPD/td-PTC device and because of the base thickness dependence of the current. External quantum efficiency is 2.9% under blue light-emitting diode illumination. In the current response, the initial displacement current is superimposed. Obtained response times are 600 mus for both transient turn-on and turn-off currents. (C) 2002 American Institute of Physics.

引用

页码：1171 / 1174

页数：4

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