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采用磁控溅射系统在晶硅太阳能电池表面沉积了不同覆盖率的Cu纳米颗粒。以没有纳米颗粒覆盖的太阳能电池作为参考电池,研究了Cu纳米颗粒对太阳能电池电学特性的影响。结果表明:在覆盖率增加的过程中,纳米颗粒主要以单个纳米颗粒的形式出现,并且很少有纳米颗粒发生团聚现象。具有2%纳米颗粒覆盖率电池的外量子效率最好。电流-电压特性测量结果表明:具有2%纳米颗粒覆盖率电池的填充因子和转换效率最好。与参考电池相比,2%纳米颗粒覆盖率电池的填充因子相对提高了36.5%,转换效率相对提高了37%。
Magnetron Sputtering system deposited on the surface of crystalline silicon solar cells with different coverage of Cu nanoparticles. The solar cells covered with no nanoparticles were used as reference cells to study the influence of Cu nanoparticles on the electrical characteristics of solar cells. The results show that in the process of increasing coverage, nano-particles mainly appear as single nano-particles, and few nano-particles agglomerate. The external quantum efficiency of the cell with 2% nanoparticle coverage is best. Current-voltage characteristics measurements show that the cell with 2% nanoparticle coverage has the best fill factor and conversion efficiency. Compared to the reference cell, the fill factor of the 2% nanoparticle coverage cell is relatively increased by 36.5% and the conversion efficiency is relatively improved by 37%.