| 학회 |
한국재료학회 |
| 학술대회 |
2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 |
23권 1호 |
| 발표분야 |
E. 환경/센서 재료 분과 |
| 제목 |
용매열처리에 따른 PEDOT:PSS 감지막의 암모니아 가스 센서 특성 |
| 초록 |
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been extensively studied as the active material in ammonia gas sensor because of its fast response time, high conductivity and environmental stability. It is well known that a post annealing process for organic devices based on PEDOT:PSS significantly increases the device performance. In this study, we propose the solvent annealing of PEDOT:PSS and investigated its effects. As a results, post solvent annealing on PEDOT:PSS lead to the surface chemical and physical properties change. These changes result in improved conductivity of the PEDOT:PSS. In additional, ammonia sensitivity of solvent annealed PEDOT:PSS become higher than pristine polymer film. The enhancement is mainly caused by the depletion of gas barrier PSS and structural re-forming PEDOT networks. We believe that the post solvent annealing is a promising method to achieve highly sensitivity PEDOT:PSS films for applications in efficient, low-cost and flexible ammonia gas sensor. |
| 저자 |
염세혁1, 노왕규2, 이왕훈1, 신한재1, 계지원1, 한동철1
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| 소속 |
1구미전자정보기술원, 2영남대 |
| 키워드 |
Gas sensors; Solvent annealing; PEDOT:PSS; Ammonia gas
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| E-Mail |
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