染料敏化太阳能电池的制备与测试研究
发布时间：2018-08-12 08:15
【摘要】：目前市场上最普遍的太阳能电池产品是硅基太阳能电池，但是它的生产成本比较高，且易造成环境的污染，很难被更大规模的使用。染料敏化太阳能电池(DSSC)是一种新型的光电化学电池，由于其价格便宜，制作工艺简单、对环境友好且可制成大面积等优点而成为当前可再生能源研究领域的一个热点，，具有很好的应用前景。 本文在详细分析DSSC工作机理的基础上，对DSSC的制备流程进行了有效优化，制备了品质较好的DSSC，并对DSSC的性能进行了测试与研究。首先，从DSSC的基础工艺出发，对其制作工艺，尤其是光阳极的处理方法进行了优化，研究包括光阳极的刮涂制备(厚度、光散射层)、热处理温度等，对其形貌与结构性质及器件性能的影响。接着对DSSC的短路电流(Isc)、开路电压(Voc)、填充因子(FF)、光电转换效率()等主要性能参数进行测试，采用Sunlyn film封装方法，研究器件的长期稳定性及相关参数的变化规律，初步得出影响器件寿命的关键因素。最后采用面积优化、热活化温度优化、表面氧化层处理(Ag+掺杂)等方法，实现了器件性能的提升，并初步研究了其性能改善的器件物理机制。从实验中我们发现，DSSC的光电性能与TiO2薄膜面积密切相关，当TiO2薄膜超过一定面积时，电池各项性能参数都呈下降趋势；当热活化温度为450℃，获得的DSSC性能最佳；采用光催化置换法在TiO2电极镀上薄层纳米银颗粒能有效提高DSSC性能。 这些研究成果为今后进一步优化DSSC的制备流程、提高DSSC光电转换效率、促进DSSC实用化进程打下了基础。
[Abstract]:At present, the most popular solar cell product in the market is silicon-based solar cell, but its production cost is high, and it is easy to cause environmental pollution, so it is difficult to be used on a larger scale. Dye-sensitized solar cell (DSSC) is a new type of photo-chemical cell. Because of its advantages of low price, simple fabrication process, friendly environment and large area, it has become a hot spot in the field of renewable energy research. It has a good application prospect. On the basis of detailed analysis of the working mechanism of DSSC, the preparation process of DSSC was optimized effectively, and the high quality DSSC was prepared, and the performance of DSSC was tested and studied. Firstly, based on the basic technology of DSSC, the fabrication process, especially the treatment method of photoanode, is optimized. The research includes the preparation of photoanode (thickness, light scattering layer), heat treatment temperature, etc. The effect on the morphology, structure and properties of the device. Then the main performance parameters such as the short-circuit current (Isc), open-circuit voltage (Voc), filling factor (FF), optoelectronic conversion efficiency (FF),) and so on are tested. The long-term stability of the device and the variation law of the related parameters are studied by using the Sunlyn film packaging method. The key factors affecting the device life are preliminarily obtained. Finally, the improvement of the device performance is realized by means of area optimization, thermal activation temperature optimization and surface oxidation treatment (Ag doping), and the physical mechanism of the device performance improvement is preliminarily studied. From the experiment, we found that the photoelectric properties of the TiO2 films are closely related to the area of the TiO2 films. When the TiO2 films exceed a certain area, all the performance parameters of the cells are decreasing, and the DSSC properties obtained are the best when the thermal activation temperature is 450 鈩
本文编号：2178471
[Abstract]:At present, the most popular solar cell product in the market is silicon-based solar cell, but its production cost is high, and it is easy to cause environmental pollution, so it is difficult to be used on a larger scale. Dye-sensitized solar cell (DSSC) is a new type of photo-chemical cell. Because of its advantages of low price, simple fabrication process, friendly environment and large area, it has become a hot spot in the field of renewable energy research. It has a good application prospect. On the basis of detailed analysis of the working mechanism of DSSC, the preparation process of DSSC was optimized effectively, and the high quality DSSC was prepared, and the performance of DSSC was tested and studied. Firstly, based on the basic technology of DSSC, the fabrication process, especially the treatment method of photoanode, is optimized. The research includes the preparation of photoanode (thickness, light scattering layer), heat treatment temperature, etc. The effect on the morphology, structure and properties of the device. Then the main performance parameters such as the short-circuit current (Isc), open-circuit voltage (Voc), filling factor (FF), optoelectronic conversion efficiency (FF),) and so on are tested. The long-term stability of the device and the variation law of the related parameters are studied by using the Sunlyn film packaging method. The key factors affecting the device life are preliminarily obtained. Finally, the improvement of the device performance is realized by means of area optimization, thermal activation temperature optimization and surface oxidation treatment (Ag doping), and the physical mechanism of the device performance improvement is preliminarily studied. From the experiment, we found that the photoelectric properties of the TiO2 films are closely related to the area of the TiO2 films. When the TiO2 films exceed a certain area, all the performance parameters of the cells are decreasing, and the DSSC properties obtained are the best when the thermal activation temperature is 450 鈩
本文编号：2178471
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