通过硝酸锌与2-甲基咪唑反应制备沸石咪唑酯骨架结构材料（ZIF-8），利用钛酸正四丁酯在ZIF-8表面水解得到ZIF/TiO2复合材料。在空气气氛中于不同温度条件下对ZIF/TiO2复合材料进行热处理得到不同的ZnO/TiO2复合材料，并应用于DSSC的光阳极，测试电池的光电流-光电压特征曲线，对测试结果进行分析。结果表明：不同ZnO/TiO2复合材料为光阳极材料制备的DSSC，光电转换效率与直接热处理制备的ZnO单相材料相比有了显著提高，其中热处理温度为600℃时，材料具备最高的光电转换效率，为3.69%，比直接热处理制备的ZnO单相材料0.78%的光电转换效率提高了373%，说明加入TiO2制备复合材料可以大幅度提高ZnO基DSSC的光电性能。%The Zeolitic Lmidazolate Frameworks (ZIF) were synthesized by Zinc nitrate and 2-methyl imidazole. With ZIF and tetra-n-butyl titanate as reactant, the ZnO/TiO2 composite materials were prepared in different temperature and applied into dye sensitized solar cell (DSSC). Test the different DSSC I-V characteristic curve and analyze the test results. The research suggests that the DSSC based on ZnO/TiO2 composites have higher photoelectric conversion efficiency than DSSC based ZnO. The composites had a photoelectric efficiency of 3.69% (calcined at 600℃) with 373%increment compared with the ZnO particles (0.78%) which has no TiO2 added.
展开▼
