A highly planar fluorinated benzothiadiazole-based conjugated polymer for high-performance organic thin-film transistors

Benjamin Nketia-Yawson; Hyo-Sang Lee; Dongkyun Seo; Youngwoon Yoon; Won-Tae Park; Kyungwon Kwak; Hae Jung Son; BongSoo Kim; Yong-Young Noh

doi:10.1002/adma.201500233

A highly planar fluorinated benzothiadiazole-based conjugated polymer for high-performance organic thin-film transistors

Adv Mater. 2015 May 20;27(19):3045-52. doi: 10.1002/adma.201500233. Epub 2015 Apr 9.

Authors

Benjamin Nketia-Yawson¹, Hyo-Sang Lee^{2

3}, Dongkyun Seo⁴, Youngwoon Yoon², Won-Tae Park¹, Kyungwon Kwak⁴, Hae Jung Son^{2

3}, BongSoo Kim⁵, Yong-Young Noh¹

Affiliations

¹ Department of Energy and Materials Engineering, Dongguk University, 26 Pil-dong, 3 ga, Jung-gu, Seoul, 100-715, South Korea.
² Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Hwarangno14-gil 5, Seongbuk-gu, Seoul, 136-791, Republic of Korea.
³ Green School (School of Energy and Environment), Korea University, 1 Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea.
⁴ Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 156-756, Republic of Korea.
⁵ Department of Science Education, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Republic of Korea.

PMID: 25858049
DOI: 10.1002/adma.201500233

Abstract

High-mobility and low-voltage-operated organic field-effect transistors (OFETs) are demonstrated by the design of a new fluorinated benzothiadiazole-based conjugated polymer with fluorinated high-k polymer dielectrics. A record-breaking high hole mobility of 9.0 cm(2) V(-1) s(-1) for benzothiadiazole-based semiconducting polymers is achieved by the excellent planarity of the semiconducting polymer.

Keywords: benzothiadiazole; carrier mobility; charge transport; conjugated polymers; organic field-effect transistors; planar backbone.