The platinized FTO glass counter electrode was prepared by employing techniques of colloid preparation, Langmuir-Blodgett film and self-assembly. The present elec- trode had very low platinum loading, high catalytic a...The platinized FTO glass counter electrode was prepared by employing techniques of colloid preparation, Langmuir-Blodgett film and self-assembly. The present elec- trode had very low platinum loading, high catalytic activity for iodine/triiodide reduction reaction. Compared with the conventional counter electrodes used in nanocrystalline dye-sensitized solar cells, the present electrode had provided a much higher catalytic performance which was attributed to the structure of platinum nanoclusters distributed homoge- neously on the electrode.展开更多
The photoelectrochemical properties of the quasi-solid-state dye-sensitized solar cells based on polymer electrolytes consisting of polyethylene oxide (PEO) with the additions of nano-TiO2 and ionic liquid of MPII (1-...The photoelectrochemical properties of the quasi-solid-state dye-sensitized solar cells based on polymer electrolytes consisting of polyethylene oxide (PEO) with the additions of nano-TiO2 and ionic liquid of MPII (1-methyl-3-propylimidazolium iodide) were studied. By using a composite polymer electrolyte of PEO︰LiI︰TiO2︰ MPII︰I2 = 3︰3︰3︰7︰1 (in mol ratio), the solar energy conversion efficiency of 3.2% under 100 mW·cm?2 was ob- tained, which was 8 times higher than that of the cell using polymer electrolyte without any additives. The effect of the additives was attributed to the increase of ionic conductivity of the polymer electrolytes.展开更多
基金the National Key Basic Research Development Program of China(Grant No.G2000028205)the Knowledge Innovation Foundation of the Chinese Academy of Scicnces(Grant No.KGCX2-303)+1 种基金the National hightech Research Program(the"863"Program)(Grant No.2002AA302403)the National Natural Science Foundation of China/grant No.502212011.
文摘The platinized FTO glass counter electrode was prepared by employing techniques of colloid preparation, Langmuir-Blodgett film and self-assembly. The present elec- trode had very low platinum loading, high catalytic activity for iodine/triiodide reduction reaction. Compared with the conventional counter electrodes used in nanocrystalline dye-sensitized solar cells, the present electrode had provided a much higher catalytic performance which was attributed to the structure of platinum nanoclusters distributed homoge- neously on the electrode.
文摘The photoelectrochemical properties of the quasi-solid-state dye-sensitized solar cells based on polymer electrolytes consisting of polyethylene oxide (PEO) with the additions of nano-TiO2 and ionic liquid of MPII (1-methyl-3-propylimidazolium iodide) were studied. By using a composite polymer electrolyte of PEO︰LiI︰TiO2︰ MPII︰I2 = 3︰3︰3︰7︰1 (in mol ratio), the solar energy conversion efficiency of 3.2% under 100 mW·cm?2 was ob- tained, which was 8 times higher than that of the cell using polymer electrolyte without any additives. The effect of the additives was attributed to the increase of ionic conductivity of the polymer electrolytes.
