화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 에너지저장·변환_포스터
제목 Mo-doped TiO2 Blocking Layer in the DSSC: Enhanced Electron Diffusion Length and Correcting Efficiency in the photoanode
초록 The power conversion efficiency of dye-sensitized solar cells has been limited because electron transport is not fully achieved, and the injected electrons always recombine with the acceptor species before the electrode can collect them. The conduction band of TiO2 shifts postively with increasing the concentration of the Mo content. The concept of introducing metal-doped TiO2 blocking layer into the mesoporous TiO2 network of DSSCs is proposed to enhance the power conversion efficiency. DSSCs based on Mo-TiO2 blocking layer show an advantage in increasing he charge transport. The charge transfer resistance in DSSC is significantly suppressed by the Mo-doping. As a result of the downward shifted conduction band and increased charge transport, the photocurrent density of the device is improved remarkably with an almost unchanged photovoltage.
저자 차하림1, 최정현1, Rajesh Cheruku1, Suresh Thogiti1, 이도경2, 김재홍1
소속 1영남대, 2대구카톨릭대
키워드 Dye sensitized solar cell; Mo-doped TiO2; blocking layer; conduction band
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