期刊
ACS NANO
卷 12, 期 4, 页码 3938-3946出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b01460
关键词
organic field-effect transistors (OFETs); organic salts; doping; mobility; contact resistance; complementary circuits
类别
资金
- National Science Foundation (NSF-DMR) [1411349]
- National Science Foundation Graduate Research Fellowships Program [1650114]
- MRSEC Program, a member of the NSF [NSF DMR 1121053]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1411349] Funding Source: National Science Foundation
Solution-processed organic field-effect transistors (OFETs) were fabricated with the addition of an organic salt, trityl tetrakis(pentafluorophenyl)borate (TrTPFB), into thin films of donor-acceptor copolymer semiconductors. The performance of OFETs is significantly enhanced after the organic salt is incorporated. TrTPFB is confirmed to p-dope the organic semiconductors used in this study, and the doping efficiency as well as doping physics was investigated. In addition, systematic electrical and structural characterizations reveal how the doping enhances the performance of OFETs. Furthermore, it is shown that this organic salt doping method is feasible for both p- and n-doping by using different organic salts and, thus, can be utilized to achieve high-performance OFETs and organic complementary circuits.
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