减反膜对单晶硅太阳能电池性能的影响分析

在太阳能电池效率的评价中，电池材料、掺杂浓度、扩散长度等都是比较重要的参数，合理地改变相关参数可以优化太阳能电池的性能，提高电池效率。此外，在太阳能电池表面镀一层具有减反作用的光学薄膜（简称减反膜）也是提高电池效率的重要手段。以提高电池效率为目标，对单晶硅太阳能电池的掺杂浓度和扩散长度等微观参数进行计算优化，分析了掺杂浓度和扩散长度变化对电池效率的影响。并在此基础上分析了不同类型的减反膜对于电池效率的影响，给出了最佳减反膜材料及其膜系厚度，并且结合镀膜后电池量子效率的变化验证了其准确性。结果表明，在优化电池掺杂浓度和扩散长度的基础上，选择合适的减反膜，电池效率最高可达20.35%，相比于优化前提高了8.25%。

Effect of antireflection film on performance of monocrystalline silicon solar cell

In the evaluation of solar cell efficiency, the cell material, doping concentration, diffusion length and so on are important parameters. Reasonable change of relevant parameters can optimize the performance of solar cells and improve their efficiency. In addition, there is an important means to improve the efficiency of solar cells by coating a layer of antireflection optical film on the surface of solar cells. To improve the cell efficiency, the micro parameters such as doping concentration and diffusion length of monocrystalline silicon solar cells were calculated and optimized, and the changes of cell efficiency with doping concentration and diffusion length were analyzed. On this basis, the influence of different antireflection films on the efficiency of the battery is analyzed, and the influence of antireflection film thickness on the efficiency of the battery is given. The results show that after optimizing the doping concentration and diffusion length of the cell, and selecting suitable antireflection films, the cell efficiency can reach 20.35%, which is 8.25% higher than that without optimization.