화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX)
권호 15권 2호, p.2207
발표분야 재료
제목 Organic Photovoltaic Cell with New Oligothiophene : C60 active layer
초록 Organic solar cells hold promise for future low-cost electrical power generation. Organic small molecular and polymeric semiconducting materials based on conjugated thiophenes have been extensively investigated, because of their high chemical stability and high carrier mobility. In comparison with polythiophenes, oligo(thiophene)s have a great many advantages, such as excellence in well-defined conjugation lengths and structures, ease of purification and characterization, owing less deep electron traps in films.
In this study, linear π-conjugated molecules based on thiophene, benzothiadiazole have been synthesized using the palladium-catalyzed Suzuki coupling reaction. The oligomers were designed to have various conjugation lengths planarity and band gap. The optical and electrochemical properties of the oligomers were investigated by UV-vis absorption, photoluminescence (PL) emission spectroscopy, cyclic voltammetry(CV). The organic photovoltaic cells were fabricated using new oligomers as the active layer and their performance were explained by molecular structure and physical properties of oligomers.
저자 공진아1, 이성구1, 이경균1, 김성현2, 임은희1
소속 1한국생산기술(연), 2고려대
키워드 Photovoltaic cell; Oligothiophene; active layer
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