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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

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

Ablat Abduleziz A   Kyndiah Adrica A   Houin Geoffroy G   Alic Tugbahan Yilmaz TY   Hirsch Lionel L   Abbas Mamatimin M  

Scientific reports 20190430 1


High performance, air stable and solution-processed small molecule 2,7-dioctyl[1]benzothieno[3,2-b]benzothiophene (C<sub>8</sub>-BTBT) based organic field-effect transistors (OFETs) with various electrode configurations were studied in detail. The contact resistance of OFET devices with Ag, Au, WO<sub>3</sub>/Ag, MoO<sub>3</sub>/Ag, WO<sub>3</sub>/Au, and MoO<sub>3</sub>/Au were compared. Reduced contact resistance and consequently improved performance were observed in OFET devices with oxide in  ...[more]

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