基于疏水固体电解质及多孔道TiO2光散色层染料敏化太阳能电池的分析-化学工程与技术专业论文.docxVIP

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基于疏水固体电解质及多孔道TiO2光散色层染料敏化太阳能电池的分析-化学工程与技术专业论文.docx

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Abstract Water-Resistant Solid-state and Salt Template Induced TiO2 Photoeletrode for DSSCs Water-Resistant Solid-State and Salt Template Induced TiO2 Photoelectrode with Channels for solid-state DSSCs Abstract Dye-sensitized solar cells (DSSCs) are attracting both academic and industrial interest over the past decades due to their relatively high energy conversion efficiency and potential low-cost. Eectrolytes and porous titanium dioxide play an important role in DSSC. Recently, a certified record power conversion efficiency has been achieved for liquid electrolyte DSSCs. However, there are still some scientific and technological difficulties: evaporation and leakage of the organic liquid electrolyte must be overcome before the application of DSSCs. In this work, hydrophobic ionic organic plastic crystals and hydrophobic redox couple were used as water-resistant solid-state DSSCs. And in order to improve the filling of the light-scattering TiO2 film with solid-state electrolyte, we report a facile and effective method for the preparation of light-scattering TiO2 film with porous channels (or pores) via a salt template method. Main contents and conclusions contained two parts as follows: Hydrophobic redox hybrid redox couple: 1- cetyl -3-methyl imidazole salt / ionic liquid functionalized TEMPO ([C16MImI] / [MeIm-TEMPO] [TFSI]) was synthesized and characterized by NMR, DSC, TGA. The hydrophobic organic ion plastic crystals N, N- methylethyl pyrrolidinium bis (trifluoromethylsulfonyl) imide salt (P12TFSI) was doped hydrophobic redox hybrid redox couple to prepare water-resistant solid-state elecctrolytes. And thermal, electrochemical properties, optical properties has been studied. Finally, the fabricated solid-state devices yielded an overall power conversion efficiency of about 5.16 % under AM 1.5 irradiance at 100 mW cm-2 at 65 oC, respectively. Furthermore, the unsealed DSSC showed good long-time stability at 100% relative humidity conditions at 50 oC. TiO2 pho