【摘要】：目前市場上最普遍的太陽能電池產(chǎn)品是硅基太陽能電池，但是它的生產(chǎn)成本比較高，且易造成環(huán)境的污染，很難被更大規(guī)模的使用。染料敏化太陽能電池(DSSC)是一種新型的光電化學電池，由于其價格便宜，制作工藝簡單、對環(huán)境友好且可制成大面積等優(yōu)點而成為當前可再生能源研究領(lǐng)域的一個熱點，，具有很好的應(yīng)用前景。 本文在詳細分析DSSC工作機理的基礎(chǔ)上，對DSSC的制備流程進行了有效優(yōu)化，制備了品質(zhì)較好的DSSC，并對DSSC的性能進行了測試與研究。首先，從DSSC的基礎(chǔ)工藝出發(fā)，對其制作工藝，尤其是光陽極的處理方法進行了優(yōu)化，研究包括光陽極的刮涂制備(厚度、光散射層)、熱處理溫度等，對其形貌與結(jié)構(gòu)性質(zhì)及器件性能的影響。接著對DSSC的短路電流(Isc)、開路電壓(Voc)、填充因子(FF)、光電轉(zhuǎn)換效率()等主要性能參數(shù)進行測試，采用Sunlyn film封裝方法，研究器件的長期穩(wěn)定性及相關(guān)參數(shù)的變化規(guī)律，初步得出影響器件壽命的關(guān)鍵因素。最后采用面積優(yōu)化、熱活化溫度優(yōu)化、表面氧化層處理(Ag+摻雜)等方法，實現(xiàn)了器件性能的提升，并初步研究了其性能改善的器件物理機制。從實驗中我們發(fā)現(xiàn)，DSSC的光電性能與TiO2薄膜面積密切相關(guān)，當TiO2薄膜超過一定面積時，電池各項性能參數(shù)都呈下降趨勢；當熱活化溫度為450℃，獲得的DSSC性能最佳；采用光催化置換法在TiO2電極鍍上薄層納米銀顆粒能有效提高DSSC性能。 這些研究成果為今后進一步優(yōu)化DSSC的制備流程、提高DSSC光電轉(zhuǎn)換效率、促進DSSC實用化進程打下了基礎(chǔ)。
[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

本文編號：2178471