Tuning the Photoresponse in Organic Field-Effect Transistors

被引：91

作者：

El Gemayel, Mirella ^{[1
]}

Treier, Matthias ^{[1
]}

Musumeci, Chiara ^{[1
]}

Li, Chen ^{[2
]}

Muellen, Klaus ^{[2
]}

Samori, Paolo ^{[1
]}

机构：

[1] Univ Strasbourg, ISIS CNRS 7006, Nanochem Lab, F-67000 Strasbourg, France

[2] Max Planck Inst Polymer Res, D-55124 Mainz, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 04期

关键词：

PERYLENE BISIMIDE DYES; THIN-FILM TRANSISTORS; SELF-ORGANIZATION; SOLAR-CELLS; SEMICONDUCTORS; PERFORMANCE; PHOTOTRANSISTORS; ARCHITECTURE; NANOSCALE; DIIMIDES;

D O I：

10.1021/ja211515b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the fabrication of solution-processed organic phototransistors (OPTs) based on perylenebis(dicarboximide)s (PDIs). We found that the responsivity to the photoillumination depends on the transistor's channel length and that it can be tuned by varying the device geometry. The analysis of different morphologies of the active semiconducting layer revealed. that single PDI fibers exhibit the higher photoresponse when compared to more poorly organized films. The highest responsivity value of 4.08 +/- 1.65 x 10(5) A/W was achieved on a multifiber-based OPT. These findings represent a step forward toward the use of organic based phototransistors as photosensors.

引用

页码：2429 / 2433

页数：5

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