摘要
有机光转换材料可以将太阳能电池不能吸收的紫外光区的波段的光转换为太阳能电池响应能力更强的可将光,从而提高了太阳能电池的光谱响应范围,进而提升了太阳能电池的光电转换效率。但这类材料普遍存在光稳定性差的问题,制约了其推广应用。本研究选择了一种有机稀土发光材料,与乙烯-醋酸乙烯(EVA)共聚物树脂混合,制备了具有光转换功能的EVA胶膜,可将紫外光转化为太阳能电池响应效果更好的红光,同时兼具优异的发光性能和透明性,为提高太阳能电池性能提供了一个解决方案。经实验表明,R-1的加入不会对EVA胶膜的性能产生明显影响,同时可将太阳能电池的光电转换效率(PCE)从13.79%提升至13.94%,提升幅度可达到1.08%。而紫外老化加速测试结果表明,光转换EVA膜在加速老化100 h以后,荧光强度仍能保持初始荧光强度的50%以上。因此,该材料具有提升太阳能电池光电转换效率的功能,同时还具有优秀的耐紫外老化性能,有望应用于高效太阳能电池组件。
Organic light conversion material could optimize the spectral mismatch between solar spectrum and bandgap of the silicon based material, and thus increased the power conversion efficiency(PCE) of solar cells. However, most organic light conversion materials were difficult to apply due to their poor photo stabilities. A highly stable and luminescent ethylene-vinyl acetate(EVA) copolymer film consisting of a new organic light conversion material was developed by mixing organic rare earth coordination compound R-1 with EVA copolymer. This light conversion film which has excellent luminescence ability and transparency,can provide a solution of improve the performance of solar cell because of the ability to convert ultraviolet light into the light that solar cells respond to better. The results show that the addition of R-1 has no obvious influence on the performance of EVA film. In the optimal case(0.3 % concentration of the organic luminescent material in the EVA matrix), the PCE of the polycrystalline silicon cells coated with the luminescent film is improved from 13.79 % to 13.94 %, which has increased 1.08 %. Also, the luminescent EVA film displays a great stability in 120 h light soaking measurement and the fluorescence intensity remains above 50 % after the test.Therefore, the light conversion EVA film can improve the photoelectric conversion efficiency of solar cells, and it has good UV aging resistance, which gives it the potential to be used in high efficiency solar cell modules.
作者
李岱远
路芳
史华红
李伟浩
Li Daiyuan;Lu Fang;Shi Huahong;Li Weihao(Institute of Chemical Engineering,Guangdong Academy of Sciences,Guangdong Key Laboratory of Industrial Surfactant,Guangzhou 510665;Foshan Huayoo Photoelectric Material Co.,Ltd.,Foshan 528000,China)
出处
《广东化工》
CAS
2023年第4期55-57,46,共4页
Guangdong Chemical Industry
基金
佛山市科技创新项目20181T100121
新兴战略产业集群前沿新材料关键技术与应用研究2022GDASZH-2022010109。
关键词
乙烯-醋酸乙烯共聚物
有机稀土配合物
太阳能电池
高效
稳定性
Ethylene-vinyl Acetate
organic rare earth coordination compound
solar cell
high efficiency
stability
