화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 분자전자 부문위원회 I
제목 Novel triblock copolymer/TiO2 composite gel electrolytes for high-performance dye-sensitized solar cells
초록 Two types of triblock copolymers were prepared using the RAFT-polymerization, which have the structure of PEG-b-(P(AN-co-BMAAm))2 (SGT-602) and PEG-b-(P(AN-co-DMAAm))2 (SGT-604). The gel electrolyte including SGT-604 or SGT-602 was electrochemically investigated by the symmetrical cell test and introduced to dye-sensitized solar cells (DSSCs). TiO2 nanoparticle was employed to the gel electrolytes in order to improve the cell performance. The optimized composition of TiO2 nano-filler was 10 wt% to total weight of the polymer gel electrolyte. The resulting TiO2 composite gel electrolytes showed efficiencies of 9.30% and 9.39% for TiO2 composite gel with SGT-602 and SGT-604, which is comparable to that of the liquid electrolyte (η: 9.86 %). Electrochemical impedance spectra (EIS) were analyzed to explain the photovoltaic parameters. Finally, Evolution of normalized efficiencies was traced under 1 sun illumination at 50 ˚C.
저자 서승모, 김경민, 김환규
소속 고려대
키워드 Dye-sensitized solar cell; electrolyte; polymer gel electrolyte; metal oxide composite; triblock copolymer
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