Статья

Low Molecular Mass Organogelator Based Gel Electrolyte with Effective Charge Transport Property for Long-Term Stable Quasi-Solid-State Dye-Sensitized Solar Cells

Zhipeng HuoDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaSongyuan DaiDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaChangneng ZhangDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaFantai KongDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaXiaqin FangDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaLei GuoDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaWeiqing LiuDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaLinhua HuDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaXu PanDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. ChinaKongjia WangDivision of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei, 230031, P. R. China

2008en

ABI

Аннотация

Stable quasi-solid-state dye-sensitized solar cells (DSC) were fabricated using 12-hydroxystearic acid as a low molecular mass organogelator (LMOG) to form gel electrolyte. TEM image of the gel exhibited the self-assembled network constructed by the LMOG, which hindered flow and volatilization of the liquid. The formation of less-mobile polyiodide ions such as I 3 (-) and I 5 (-) confirmed by Raman spectroscopy increased the conductivity of the gel electrolytes by electronic conduction process, which should be rationalized by the Grotthuss-type electron exchange mechanism caused by rather packed polyiodide species in the electrolytes. The results of the accelerated aging tests showed that the gel electrolyte based dye-sensitized solar cell could retain over 97% of its initial photoelectric conversion efficiency value after successive heating at 60 degrees C for 1000 h and device degradation was also negligible after one sun light soaking with UV cutoff filter for 1000 h.

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Идентификаторы

DOI: 10.1021/jp8052168

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar