A small molecule composed of anthracene and thienothiophene devised for high-performance optoelectronic applications
- Authors
- Jang, Young Ju; Lim, Byung Tack; Yoon, Soon Byung; Choi, Ho Jun; Ha, Jae Un; Chung, Dae Sung; Lee, Sang-Gyeong
- Issue Date
- Sep-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Hole mobility; Solution processing; Organic thin-film transistor; Asymmetric compound and small molecule; Photoconductor; Anthracene
- Citation
- DYES AND PIGMENTS, v.120, pp 30 - 36
- Pages
- 7
- Journal Title
- DYES AND PIGMENTS
- Volume
- 120
- Start Page
- 30
- End Page
- 36
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/64483
- DOI
- 10.1016/j.dyepig.2015.04.004
- ISSN
- 0143-7208
1873-3743
- Abstract
- An asymmetric small molecule composed of anthracene and alkylated thienothiophene (2-(anthracen-2-yl)-5-hexylthieno[3,2-b]thiophene) was synthesized via the Suzuki coupling reaction. The thermal stability, photochemical properties, and morphological characteristics were investigated using thermogravimetric analysis, differential scanning calorimetry, cyclic voltammetry, UV-visible spectroscopy, and X-ray diffraction techniques. The compound demonstrated a good thermal stability of 5% at a decomposition temperature of 336 degrees C. The solution-processed single-crystal transistor, devised with 2-(anthracen-2-yl)-5-hexylthieno[3,2-b]thiophene, exhibited high performance with a hole mobility of 0.1 cm(2)/Vs. Furthermore, by utilizing the high mobility of 2-(anthracen-2-yl)-5-hexylthieno[3,2-b]thiophene, we demonstrated its unprecedented high photoresponsivity of 3370 A/W, a finding that can be attributed to the very efficient photoconductive behavior of a single crystal of 2-(anthracen-2-yl)-5-hexylthieno[3,2-b]thiophene. (C) 2015 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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