화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO))
권호 21권 2호
발표분야 에너지저장변환_포스터
제목 Fabrication of ZnO μ-rods and photovoltaic properties of solar cells with them
초록 ZnO microrods with a thickness of about 8 ~ 18 μm have been prepared by chemical bath deposition technique for applications to photoelectrodes of dye-sensitized solar cells (DSSCs). With increasing the thickness of ZnO microrods, the open circuit voltage (Voc) values of the DSSCs were increased, but a decrease in the short circuit current (Jsc) was observed in over 8hr of dipping time in zinc nitrate solution. By monitoring changes in dark current and electrochemical impedance, it was revealed that the increase in Voc was attributed to the suppression of the charge recombination between injected electrons and I3- ions, probably due to an reduction in the surface area of ZnO microrods. This reduction of the surface area would lead to a decrement of dye contents adsorbed on ZnO microrods, resulting in the decreased Jsc value.
저자 최근영1, 류경범1, 박성주1, 윤상훈1, 성혜경1, 조성일1, 김지영2, 한윤수1
소속 1대구가톨릭대, 2대구경북과학기술원
키워드 ZnO microrod; photoelectrode; dye-sensitized solar cell
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