期刊
ADVANCED MATERIALS
卷 32, 期 33, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201908120
关键词
accumulation mode; conjugated polyelectrolytes; organic electrochemical transistors; self doping
类别
资金
- MRSEC Funding Source: Medline
- National Science Foundation [DMR-1121053, DMR-1922042] Funding Source: Medline
PCPDTBT-SO3K (CPE-K), a conjugated polyelectrolyte, is presented as a mixed conductor material that can be used to fabricate high transconductance accumulation mode organic electrochemical transistors (OECTs). OECTs are utilized in a wide range of applications such as analyte detection, neural interfacing, impedance sensing, and neuromorphic computing. The use of interdigitated contacts to enable high transconductance in a relatively small device area in comparison to standard contacts is demonstrated. Such characteristics are highly desired in applications such as neural-activity sensing, where the device area must be minimized to reduce invasiveness. The physical and electrical properties of CPE-K are fully characterized to allow a direct comparison to other top performing OECT materials. CPE-K demonstrates an electrical performance that is among the best reported in the literature for OECT materials. In addition, CPE-K OECTs operate in the accumulation mode, which allows for much lower energy consumption in comparison to commonly used depletion mode devices.
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