Journal
CHINESE CHEMICAL LETTERS
Volume 30, Issue 4, Pages 903-905Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2019.02.012
Keywords
Organic field-effect transistors; Organic semiconductors; Thienoacene; Charge transport; Stability
Categories
Funding
- Ministry of Science and Technology of China [2015CB856502, 2016YFB0401100, 2017YFA0204503]
- National Natural Science Foundation of China [51733004, 51822308, 51725304, 51633006, 21661132006]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12000000]
- Youth Innovation Promotion Association of the Chinese Academy of Sciences
- Startup Foundation for Doctors of China West Normal University [15E007]
- Open Foundation of Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province [CSPC2015-1-1]
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A novel semiconductor, dihexyl-substituted pentathienoacene (C6-PTA) is designed and synthesized in five steps with the total yield up to 25.2%. The introduction of hexyl chains endow the thin film semiconductor with about threefold increase in carrier mobility and one to three orders of magnitude improvement in current on/off ratio. Furthermore, single crystal FETs based on C6-PTA exhibited mobility up to 0.64 cm(2) V-1 s(-1), which is over 50 times higher than the thin film counterpart. The results indicate clearly that C6-PTA is a promising organic semiconductor with high stability. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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