Journal
ADVANCED MATERIALS
Volume 28, Issue 34, Pages 7466-7471Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201601502
Keywords
field-effect transistors; organic semiconductors; radicals; single crystals
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Funding
- MOST [2013CB933403, 2013CB933500, 2014CB643600]
- NSFC [61201105, 91222203, 91233205, 91433115, 51303185]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030300, XDB12010400]
- Beijing Local College Innovation Team Improve Plan [IDHT20140512]
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Singly linked and vinyl-linked dimers of dithienothiophenes exhibit different electronic behaviors. Single crystals of the singly linked dimer show a high conductivity of 0.265 S cm(-1), five orders of magnitude higher than that of the vinyl-linked dimer. The huge increase in the hole density of singly linked dimers results from the formation of radicals, which can be reversibly tuned by facile thermal de-doping.
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