太阳能电池封装用光功能化EVA胶膜的制备研究

发布时间：2019-02-11 07:15

【摘要】：太阳能电池封装材料对太阳能电池的输出效率和服役寿命有重要影响。本文研究和制备了一种太阳能电池封装用光功能化EVA胶膜,它能将目前硅太阳能电池不能吸收利用的紫外光转换成可吸收利用的可见光或近红外光,进而有望提高硅太阳能电池的能量转换效率。首先,在实验室之前EVA封装胶膜研究的基础上,我们选用了丙烯酸(AA)、甲基丙烯酸甲酯(MMA)、g-甲基丙烯酰氧丙基三甲氧基硅烷(KH-570)作为接枝单体对EVA进行接枝,并通过交联性能、粘接性能、透光性能和耐湿热老化性能测试表征了接枝单体及稳定剂含量对EVA封装胶膜性能影响。结果表明,KH-570接枝的EVA胶膜综合性能最优。然后,我们以三水合乙酸铅、单硫代苯甲酸为原料合成制备了单硫代苯甲酸铅(Pb TB)前驱体,并通过其在油酸胺作用下的分解反应合成制备了硫化铅(PbS)量子点。X射线衍射(XRD)分析证实了所得产物为PbS;而透射电子显微镜(TEM)测试表明PbS粒径大小为10~20nm。最后,通过直接共混法、前驱体热分解法、原位反应法分别制备了EVA/PbS量子点复合胶膜,并对胶膜的透光性能和荧光性能进行了表征。研究表明,原位反应法制备的复合胶膜拥有较好的透光性能和荧光性能,与光功能化封装胶膜的性能要求相匹配。
[Abstract]:Solar cell packaging material has an important impact on the output efficiency and service life of solar cells. In this paper, we study and fabricate a photofunctionalized EVA film for solar cell packaging, which can convert the ultraviolet light which cannot be absorbed by silicon solar cells into visible light or near-infrared light. It is expected to improve the energy conversion efficiency of silicon solar cells. First of all, on the basis of the study of pre-laboratory EVA packaging film, we selected (AA), methacrylate (MMA),. EVA was grafted by g- methacryloxy propyl trimethoxy silane (KH-570) as graft monomer. The effects of graft monomer and stabilizer content on the properties of EVA packaging film were investigated. The results showed that the comprehensive properties of EVA films grafted with KH-570 were the best. Then, lead monothiobenzoate (Pb TB) precursor was synthesized from lead acetate trihydrate and monothiobenzoic acid. Lead sulphide (PbS) quantum dots were synthesized by the decomposition reaction of oleic acid amines. X-ray diffraction (XRD) analysis confirmed that the product was PbS;. Transmission electron microscopy (TEM) (TEM) showed that the size of PbS was 10 ~ 20 nm. Finally, EVA/PbS QDs composite films were prepared by direct blending method, precursor thermal decomposition method and in-situ reaction method. The transmittance and fluorescence properties of the films were characterized. The results show that the composite films prepared by in-situ reaction method have better transmittance and fluorescence properties, which are in line with the performance requirements of photofunctionalized packaging films.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM914.4

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