Evaluation of the intrinsic charge carrier transporting properties of linear- and bent-shaped π-extended benzo-fused thieno[3,2-b]thiophenes

Yusuke Tsutsui; Tsuneaki Sakurai; Sojiro Minami; Koji Hirano; Tetsuya Satoh; Wakana Matsuda; Kenichi Kato; Masaki Takata; Masahiro Miura; Shu Seki

doi:10.1039/c5cp00785b

Evaluation of the intrinsic charge carrier transporting properties of linear- and bent-shaped π-extended benzo-fused thieno[3,2-b]thiophenes

Yusuke Tsutsui, Tsuneaki Sakurai, Sojiro Minami, Koji Hirano, Tetsuya Satoh, Wakana Matsuda, Kenichi Kato, Masaki Takata, Masahiro Miura, Shu Seki

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

The intrinsic charge carrier transporting properties of two isomeric linear- and bent-shaped 7-ring benzo-fused thieno[3,2-b] thiophenes and their octyl-substituted analogues were newly investigated using flash-photolysis (FP-) and field-induced (FI-) time-resolved microwave conductivity (TRMC) techniques. FP-TRMC study in the solid state revealed that octyl-substitution potentially improved the photoconductivity due to the enhanced crystalline lamellar packing. After this screening process, local-scale hole mobilities at the thienoacene-poly(methylmethacrylate) insulator interfaces were precisely recorded using FI-TRMC, reaching up to 4.5 cm² V^-1 s^-1 for the linear-shaped non-alkylated thienoacene. The combination of FP- and FI-TRMC measurements provides a rapid and quantitative evaluation scheme even for a variety of compounds with some issues in the processing conditions, leading to the optimized structure of the compounds used as active (interfacial) layers in practical electronic devices. This journal is

Original language	English
Pages (from-to)	9624-9628
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	15
DOIs	https://doi.org/10.1039/c5cp00785b
Publication status	Published - 2015 Apr 21
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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Tsutsui, Y., Sakurai, T., Minami, S., Hirano, K., Satoh, T., Matsuda, W., Kato, K., Takata, M., Miura, M., & Seki, S. (2015). Evaluation of the intrinsic charge carrier transporting properties of linear- and bent-shaped π-extended benzo-fused thieno[3,2-b]thiophenes. Physical Chemistry Chemical Physics, 17(15), 9624-9628. https://doi.org/10.1039/c5cp00785b

Evaluation of the intrinsic charge carrier transporting properties of linear- and bent-shaped π-extended benzo-fused thieno[3,2-b]thiophenes. / Tsutsui, Yusuke; Sakurai, Tsuneaki; Minami, Sojiro; Hirano, Koji; Satoh, Tetsuya; Matsuda, Wakana; Kato, Kenichi; Takata, Masaki; Miura, Masahiro; Seki, Shu.

In: Physical Chemistry Chemical Physics, Vol. 17, No. 15, 21.04.2015, p. 9624-9628.

Research output: Contribution to journal › Article

Tsutsui, Yusuke ; Sakurai, Tsuneaki ; Minami, Sojiro ; Hirano, Koji ; Satoh, Tetsuya ; Matsuda, Wakana ; Kato, Kenichi ; Takata, Masaki ; Miura, Masahiro ; Seki, Shu. / Evaluation of the intrinsic charge carrier transporting properties of linear- and bent-shaped π-extended benzo-fused thieno[3,2-b]thiophenes. In: Physical Chemistry Chemical Physics. 2015 ; Vol. 17, No. 15. pp. 9624-9628.

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