화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO))
권호 22권 1호
발표분야 에너지저장변환_포스터
제목 Composite paste based on PbSe nanoparticles and carbon black thin film counter electrode for cadmium selenide quantum dot-sensitized solar cells
초록 QDSSCs are designed based on the interfacial charge separation between a short band gap (donor) and a large band gap (acceptor) semiconductor. Polysulfide electrolyte and Pt counter electrode are the most commonly used in QDSSCs. However, the Pt-based counter electrode shows reduced activity in the polysulfide electrolyte due to poisoning effect. In this study, PbSe/Carbon Black (CB) composite electrode has been fabricated from pre-synthesized PbSe nanoparticles and Carbon Black with assist of PVDF as binder material by doctor-blading. Additionally, to enhance contact properties of composite film to FTO, post thermal treatment was done at Ar ambient. PbSe NPs/CB exhibited much higher catalytic property with polysulfide electrolyte than Pt. QDSSC with composite counter electrode achieved a power conversion efficiency 4.275% which is higher than Pt counter electrodes
저자 윤용한, Elayappan Vijayakumar, Vu Hong Vin Quy, 채지영, 이영훈, 안광순
소속 영남대
키워드 : Composite structure; Lead selenide; Quantum dot-sensitized solar cell; Carbon black; Counter electrode
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