화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 기능성 고분자
제목 Near-infrared Quantum-dot Photodetectors via Improving Interfacial Contact Using Conjugated Polyelectrolytes
초록 The photodetecting properties of near-infrared quantum-dot photodetectors were enhanced by introducing three kinds of novel cationic conjugated polyelectrolytes. The on-current density of the NIR-QPDs was increased by the decreased work-function of ZnO/CCPs via forming a permanent dipole moment at the interface of ZnO and CCPs. In addition, the decreased bimolecular recombination and uniformly deposited QD layer assisted in the improvement of Jph and photo-responsivity value in NIR-QPDs. The off-current was significantly suppressed by the improved interfacial morphology and the reduced defect site of ZnO after CCP treatments.
저자 정문기, 정인환
소속 국민대
키워드 Quantum-dot; Photodetectors Polyelectrolyte
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