Influence of PEDOT:PSS crystallinity and composition on electrochemical transistor performance and long-term stability
- Authors
- Kim, Seong-Min; Kim, Chang-Hyun; Kim, Youngseok; Kim, Nara; Lee, Won-June; Lee, Eun-Hak; Kim, Dokyun; Park, Sungjun; Lee, Kwanghee; Rivnay, Jonathan; Yoon, Myung-Han
- Issue Date
- 21-Sep-2018
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE COMMUNICATIONS, v.9
- Journal Title
- NATURE COMMUNICATIONS
- Volume
- 9
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3335
- DOI
- 10.1038/s41467-018-06084-6
- ISSN
- 2041-1723
- Abstract
- Owing to the mixed electron/hole and ion transport in the aqueous environment, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)-based organic electrochemical transistor has been regarded as one of the most promising device platforms for bioelectronics. Nonetheless, there exist very few in-depth studies on how intrinsic channel material properties affect their performance and long-term stability in aqueous environments. Herein, we investigated the correlation among film microstructural crystallinity/composition, device performance, and aqueous stability in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) films. The highly organized anisotropic ordering in crystallized conducting polymer films led to remarkable device characteristics such as large transconductance (similar to 20 mS), extraordinary volumetric capacitance (113 F.cm(-3)), and unprecedentedly high [mu C*] value (similar to 490 F.cm(-1) V-1 s(-1)). Simultaneously, minimized poly(styrenesulfonate) residues in the crystallized film substantially afforded marginal film swelling and robust operational stability even after >20-day water immersion, >2000-time repeated on-off switching, or high-temperature/pressure sterilization. We expect that the present study will contribute to the development of long-term stable implantable bioelectronics for neural recording/stimulation.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - IT융합대학 > 전자공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3335)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.