Charge-Transfer Complexes in Organic Field-Effect Transistors: Superior Suitability for Surface Doping.

ABSTRACT: We demonstrate the key role of charge-transfer complexes in surface doping as a successful methodology for improving channel field-effect mobility and reducing the threshold voltage in organic field-effect transistors (OFETs), as well as raising the film conductivity. Demonstrated here for 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C₈-BTBT) doped with 2,2'-(perfluoronaphthalene-2,6-diylidene)dimalononitrile (F₆TCNNQ), channel doping by sequential deposition is consistently rationalized by the development of a cocrystalline structure that forms and evolves from the surface of the organic semiconductor film without trading the thin-film structure integrity. This scenario brings higher benefits for the device operation than doping by codeposition, where a

SUBMITTER: Babuji A 

PROVIDER: S-EPMC9542699 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature