Unraveling Unprecedented Charge Carrier Mobility through Structure Property Relationship of Four Isomers of Didodecyl[1]benzothieno[3,2-b][1]benzothiophene

Yusuke Tsutsui; Guillaume Schweicher; Basab Chattopadhyay; Tsuneaki Sakurai; Jean-Baptiste Arlin; Christian Ruzié; Almaz Aliev; Artur Ciesielski; Silvia Colella; Alan R Kennedy; Vincent Lemaur; Yoann Olivier; Rachid Hadji; Lionel Sanguinet; Frédéric Castet; Silvio Osella; Dmytro Dudenko; David Beljonne; Jérôme Cornil; Paolo Samorì; Shu Seki; Yves H Geerts

doi:10.1002/adma.201601285

Unraveling Unprecedented Charge Carrier Mobility through Structure Property Relationship of Four Isomers of Didodecyl[1]benzothieno[3,2-b][1]benzothiophene

Adv Mater. 2016 Sep;28(33):7106-14. doi: 10.1002/adma.201601285. Epub 2016 May 25.

Authors

Yusuke Tsutsui¹, Guillaume Schweicher², Basab Chattopadhyay², Tsuneaki Sakurai¹, Jean-Baptiste Arlin², Christian Ruzié², Almaz Aliev², Artur Ciesielski³, Silvia Colella³, Alan R Kennedy⁴, Vincent Lemaur⁵, Yoann Olivier⁵, Rachid Hadji⁶, Lionel Sanguinet⁶, Frédéric Castet⁷, Silvio Osella⁵, Dmytro Dudenko⁵, David Beljonne⁵, Jérôme Cornil⁵, Paolo Samorì³, Shu Seki¹, Yves H Geerts²

Affiliations

¹ Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
² Laboratoire de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), CP206/1, Boulevard du Triomphe, 1050, Brussels, Belgium.
³ ISIS & icFRC, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000, Strasbourg, France.
⁴ Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland.
⁵ Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, B-7000, Mons, Belgium.
⁶ MOLTECH-Anjou UMR CNRS 6200, L'Université Nantes Angers Le Mans (L'UNAM), Université d'Angers, 2 Bd Lavoisier, 49045, Angers Cedex, France.
⁷ Institut des Sciences Moléculaires, UMR CNRS 5255, Université de Bordeaux, Cours de la Libération 351, FR-33405, Talence, France.

PMID: 27226066
DOI: 10.1002/adma.201601285

Abstract

The structural and electronic properties of four isomers of didodecyl[1]-benzothieno[3,2-b][1]benzothiophene (C12-BTBT) have been investigated. Results show the strong impact of the molecular packing on charge carrier transport and electronic polarization properties. Field-induced time-resolved microwave conductivity measurements unravel an unprecedented high average interfacial mobility of 170 cm(2) V(-1) s(-1) for the 2,7-isomer, holding great promise for the field of organic electronics.

Keywords: high mobility; intrinsic charge carrier transport; organic semiconductors; structure-property relationship; time-resolved microwave conductivity.