Self-Heating, Bistability, and Thermal Switching in Organic Semiconductors

被引：41

作者：

Fischer, A. ^{[1
]}

Pahner, P. ^{[1
]}

Luessem, B. ^{[1
]}

Leo, K. ^{[1
]}

Scholz, R. ^{[1
]}

Koprucki, T. ^{[2
]}

Gaertner, K. ^{[2
]}

Glitzky, A. ^{[2
]}

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01069 Dresden, Germany

[2] Karl Weierstrass Inst Math, D-10117 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 12期

关键词：

BREAKDOWN; DEVICES; FILMS; MODEL; AREA;

D O I：

10.1103/PhysRevLett.110.126601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate electric bistability induced by the positive feedback of self-heating onto the thermally activated conductivity in a two-terminal device based on the organic semiconductor C-60. The central undoped layer with a thickness of 300 nm is embedded between thinner n-doped layers adjacent to the contacts, minimizing injection barriers. The observed current-voltage characteristics follow the general theory for thermistors described by an Arrhenius-like conductivity law. Our findings include hysteresis phenomena and are of general relevance for the entire material class since most organic semiconductors can be described by a thermally activated conductivity. DOI: 10.1103/PhysRevLett.110.126601

引用

页数：5

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