THE POLYMER SOCIETY OF KOREA

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세션명 Graduate Student Oral Session (I) (English)
발표장 제8회장 (104)
논문코드 1O8-15
발표일 2018-10-11
발표시간 17:20-17:35
논문제목 Flexible and Reliable Organic Field-Effect Transistors Using Low-Temperature Solution-Processed Polyimide Gate Dielectrics
발표자 박현진
발표자 소속 포항공과대학교
저자 박현진, 유성미1, 이미혜1, 김윤호1, 정성준
소속 포항공과대학교; 1한국화학연구원
논문초록 Polyimide (PI) has been widely used as a gate dielectric due to its remarkable thermal stability, chemical resistance and mechanical flexibility. However, the high processing temperature and high surface energy of the PI gate dielectrics hinder the realization of flexible and reliable electronic applications at low cost. Here, we demonstrate a low-temperature solution-processed organic field-effect transistor (OFET) using a fully imidized soluble PI gate dielectric. The low temperature processability of soluble PI gate dielectrics is confirmed by investigating the effect of annealing temperature on the dielectric properties and the electrical characteristics. By blending 6,13-Bis(triisopropylsilylethynyl)pentacene with polystyrene, the reliability of OFET has been considerably enhanced while maintaining high device performance. As a result, OFETs can be integrated with ultrathin parylene substrates and exhibit excellent flexibility without degrading device performance.