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Micro-scale twistable organic field effect transistors and complementary inverters fabricated by orthogonal photolithography on flexible polyimide substrate

Authors :
Seunghun Hong
Seok-Heon Jung
Younggul Song
Daekyoung Yoo
Jingon Jang
Takhee Lee
Taeyoung Kim
Jin-Kyun Lee
Source :
Organic Electronics. 15:2822-2829
Publication Year :
2014
Publisher :
Elsevier BV, 2014.

Abstract

We fabricated micro-scale organic field effect transistors (OFETs) and complementary inverters on a twistable polyimide (PI) substrate by applying orthogonal photolithography. By applying a highly fluorinated photoresist and development solvent, it becomes possible to create organic electronic devices with a micro-scale channel length without damaging the underlying polymer films. The 3 μm-channel twistable pentacene OFET devices and complementary inverters created using p-type pentacene and n-type copper hexadecafluorophthalocyanine exhibited stable electrical characteristics from flat to twist configurations (angle of up to ∼50°). The realization of twistable micro-scale OFETs and inverter devices on a PI substrate may enable the production of functioning organic devices in practical, flexible configurations.

Details

ISSN :
15661199
Volume :
15
Database :
OpenAIRE
Journal :
Organic Electronics
Accession number :
edsair.doi...........7cec0ba9629ae5579946b22458dc0162
Full Text :
https://doi.org/10.1016/j.orgel.2014.08.025