Solid-state homojunction electrochemical transistors and logic gates on plastic
발표자
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초록
내용
Organic electrochemical transistors (OECTs) have attracted significant attention due to their unique ionic–electronic charge coupling, which holds promise for use in a variety of bioelectronics. However, the typical electronic components of OECTs, such as the rigid metal electrodes and aqueous electrolytes, have limited their application in solid-state bioelectronics that requires design flexibility and a variety of form factors. Here, the fabrication of a solid-state homojunction OECT consisting of a pristine polymer semiconductor channel, doped polymer semiconductor electrodes, and a solid electrolyte is demonstrated. This structure combines the photo-crosslinking of all of the electronic OECT components with the selective doping of the polymer semiconductor. The AuCl3-doped polymer semiconductor with an electrical conductivity of ≈100 S/cm is successfully employed as the source, drain, and gate electrodes for the OECT, which exhibited a high carrier mobility and excellent mechanical stability.