화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 분자전자 부문위원회 Ⅰ,Ⅱ
제목 High-EQE photomultiplication-type organic photodiode with advanced stability via introduction of perfluorinated azide
초록 Here we show that fluorinated azide which is employed as a functional additive of photomultiplication-type organic photodiode (PM-OPD) can not only enhance an operational stability by freezing the morphology consisting of matrix polymer/localized acceptor but also stabilize trapped electron state so that photomultiplication mechanism can be further accelerated. The resulting OPD rendered maximum EQE over 500,000% and 370,000% for bottom and top illumination, respectively. Moreover, the OPD shows stable performances of continuous operation and minimized performance degradation even after damp heat test. To fully visualize advantages of the suggested semi-transparent, high EQE and top-illuminated OPD, reflection-type fingerprint platform consisting of 1 OPD-1 oxide field effect transistor CMOS backplane (300 ppi) is designed. Successful recognition of one of the author’s fingerprint is demonstrated, showing the feasibility of the suggested PM-OPD for sensing weak light intensity.
저자 김주희, 정대성
소속 포항공과대
키워드 photomultiplication-type organic photodiode; high-EQE; stability
E-Mail