화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center))
권호 21권 1호
발표분야 고분자
제목 Photo-Responsive Transistors based on a Dual Acceptor-containing Low Bandgap Polymer
초록 Low bandgap pTTDPP–BT polymers consisting of electron−rich thienothiophene, electron−deficient diketopyrrolopyrrole, and benzothiadiazole units were synthesized. Phototransistors have been fabricated using ambipolar-behaving pTTDPP–BT polymers as active channel materials. The photo−responsive properties of the pTTDPP–BT phototransistors were investigated as a function of the annealing temperature. As−spun pTTDPP–BT phototransistors exhibited low hole and electron mobilities, which resulted in low photocurrent detection due to the limited transport of the photo−generated charge carriers. Thermal annealing of the polymer films resulted in a significant increase in the carrier mobilities and thus significantly improved photo−responsive properties.
저자 김민제1, 최신영2, 이명재3, 김세아2, 허효정4, 이연구4, 최종호3, 김명화2, 조정호1, 김봉수2
소속 1성균관대, 2이화여자대, 3고려대, 4경북대
키워드 Phototransistor; Low bandgap polymer; Carrier mobility; Photo-response; Photo-switching
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