| 초록 |
Organic electrochemical transistors (OECTs) has recently attracted for its amplifying efficiency as transducers for bioelectronics. In terms of the bioelectronics, the transistor need high amplifying efficiency and long-term stability. In OECTs, as a polymer channel is in immediately contacted, further, directly exchange ions with electrolytes, the polymeric structures determine the device characteristics and stability. In this presentation, we reported high transconductance OECTs with long-term stability in physiological environment by controlling crystallinity of PEDOT:PSS thin film. Furthermore, we identified that the improvement of transconductance are dependent on increased volumetric capacitance of PEDOT:PSS channels. To our knowledge, this is first study to develop long-term stable organic based transistor directly interfacing with electrolytes. This results imply that the crystallinity controlled PEDOT:PSS can be the promising materials for developing future bioelectronics. |
