High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)

Sureshraju Vegiraju; Deng-Yi Huang; Pragya Priyanka; Yo-Shan Li; Xian-Lun Luo; Shao-Huan Hong; Jen-Shyang Ni; Shih-Huang Tung; Chien-Lung Wang; Wei-Chieh Lien; Shueh Lin Yau; Cheng-Liang Liu; Ming-Chou Chen

doi:10.1039/C7CC02714A

High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)†

Sureshraju Vegiraju,‡^a Deng-Yi Huang,‡^b Pragya Priyanka,^a Yo-Shan Li,^a Xian-Lun Luo,^b Shao-Huan Hong,^b Jen-Shyang Ni,^c Shih-Huang Tung,

^d Chien-Lung Wang,

^e Wei-Chieh Lien,^a Shueh Lin Yau,^a Cheng-Liang Liu

*^b and Ming-Chou Chen

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, National Central University, Taoyuan, Taiwan
E-mail: mcchen@ncu.edu.tw

^b Department of Chemical and Materials Engineering, National Central University, Taoyuan, Taiwan
E-mail: clliu@ncu.edu.tw

^c Institute of Chemistry, Academia Sinica, Taipei, Taiwan

^d Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan

^e Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan

Abstract

Three new organic semiconductors with alkyl chain-substituted tetrathienoacene (TTAR) as the central core and both ends capped with thiophene (DT-TTAR), thienothiophene (DTT-TTAR) and dithienothiophene (DDTT-TTAR) have been synthesized and characterized for organic field effect transistor (OFET) applications. A hole mobility of 0.81 cm² V⁻¹ s⁻¹ was achieved for the DDTT-TTAR film, which represents the highest mobility yet found for a solution-processable p-type TTAR-based small molecular semiconductors.

Chemical Communications

High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)†

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