Role of Oxide/Metal Bilayer Electrodes in Solution Processed Organic Field Effect Transistors.

ABSTRACT: High performance, air stable and solution-processed small molecule 2,7-dioctyl[1]benzothieno[3,2-b]benzothiophene (C₈-BTBT) based organic field-effect transistors (OFETs) with various electrode configurations were studied in detail. The contact resistance of OFET devices with Ag, Au, WO₃/Ag, MoO₃/Ag, WO₃/Au, and MoO₃/Au were compared. Reduced contact resistance and consequently improved performance were observed in OFET devices with oxide interlayers compared to the devices with bare metal electrodes. The best oxide/metal combination was determined. The possible mechanisms for enhanced electrical properties were explained by favorable morphological and electronic structure of organic/metal oxide/metal interfaces.

SUBMITTER: Ablat A 

PROVIDER: S-EPMC6491551 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature