MgO修饰的染料敏化TiO2薄膜太阳能电池的制备与工艺研究论文.docxVIP

MgO修饰的染料敏化TiO2薄膜太阳能电池的制备与工艺研究摘要随着全球经济的发展，人们对能源的需求正在不断增长。太阳能清洁无任何污染，因而成为最具开发潜力的新能源之一。染料敏化太阳能电池(DSSC)是一种新型太阳能电池，与传统硅太阳能电池相比具有制作工艺简单、价格便宜、可制成大面积等优点，具有很好的应用前景。本论文采用水热法合成纳米级TiO2颗粒，向其中加入有机高分子分散剂PVA，通过手术刀法制备表面平整度较高的TiO2多孔膜光阳极，依据物理吸附原理制备MgO/TiO2复合光阳极。结构测试手段包括：X射线衍射分析、扫描电镜显微分析。光学性能测试手段包括：I-V曲线测试仪分析。通过上述测试手段对试样的颗粒粒径、晶体类型、表面形貌、掺杂性能及I-V性能进行测试，结果如下所示。水热法合成的TiO2溶胶为锐钛矿型，晶粒尺寸约为50nm。对TiO2多孔膜进行光电性能测试，开路电压为0.586V，短路电流为3.66mA/cm2。对复合薄膜光阳极进行光电性能测试，开路电压为0.644V，短路电流为6.07mA/cm2。关键词　染料敏化太阳能电池；TiO2；MgO；光电转化效率The Research of Preparation and Property of TiO2 Filmfor Dye-Sensitized Solar Cells Modified by MgOAbstractWiththe development of the global economy, the demands for energy are growing, and thedevelopment of new energy is imperative. The solar energy is one of the mostpotential because of its continuous irradiation, harmless and inexhaustibility.Dye-sensitized solar cell (DSSC) is a new type of solar cell, it is simple , cheap and can be made into a large area compared to traditional silicon solar cell，and has a good prospect of application. The structure characterizations were x-ray diffraction, Scanning electron microscopic,laser particle size analysis. The optical properties were tested by spectrophotometer and I-V curves tester.According to aforesaid tests, we can measure particle size, crystalline types, surface appearance, absorbance character, doping performance and I-V curves. The results were shown in below.The results were shown in below.The sol of TiO2 by hydrothermal method was an anatase structure and particle size is about 50 nm.These were results of photoelectric property: open-circuit voltage was 0.586V, short-circuit current was 3.66mA/cm2.These were results of MgO/TiO2core-shell filmphotoelectric property:open-circuit voltage was 0.644V, short-circuit current was 6.07mA/cm2.Keywords　 Dye-sensitized solar cells, TiO2, MgO,photoelectric conversion efficiency不要删除行尾的分节符，此行不会被打印千万不要删除行尾的分节符，此行不会被打印。在目录上点右键“更新域”，然后“更新整个目录”。打印前，不要忘记把上面“Abstract”这一行后加一空行绪论课题背景及研究的目的和意义课题背景随着世界人