화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO))
권호 21권 2호
발표분야 에너지저장변환_포스터
제목 Dilution effects of zinc sulfate solution for surface modification of photoelectrodes on the performance of TiO2-based solar cells
초록 In our previous report, zinc sulfate (ZS) modification of the photoelectrode surface led to a reduction in the short circuit current (Jsc) value, thereby decreasing the overall power conversion efficiency (PCE) of the dye-sensitized solar cell (DSSC), compared to that of reference device. It was also revealed that the amount of adsorbed dyes was decreased by the presence of ZS on the photoelectrode. We believe that ZS incorporated on the surface of TiO2 would prevent the adsorption of dyes. Therefore, in order to minimize the reduction of light harvesting efficiency, it is necessary to reduce the amount of ZS on the TiO2 surface. We thus used a diluted ZS solution to modify the TiO2 surface, instead of 50mM solution. As a result, without loss of the Jsc value, an enhancement in PCE was achieved in the DSSC, due to an increase in the open circuit voltage.
저자 류경범1, 박성주1, 성혜경1, 최근영1, 윤상훈1, 김종태2, 한윤수1
소속 1대구가톨릭대, 2대구경북과학기술원
키워드 zinc sulfate; surface modification; dye-sensitized solar cells; photoelectrode
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