表面处理对低成本多晶硅太阳电池性能的影响  

Effect of Surface Processing on The Performance of Low-cost Multi-crystalline Silicon Solar Cells

作　　者：张妹玉[1] 张宁[1] 翁铭华[1] 陈朝[2,3] 

机构地区：[1]闽江学院物理学与电子信息工程系,福州350108 [2]闽江学院物理学与电子信息物理系,福州350108 [3]能源学院,福建厦门361005

出　　处：《半导体光电》2014年第2期233-236,240,共5页Semiconductor Optoelectronics

基　　金：福建省自然科学基金项目(2012J05122);福建省教育厅B类项目(JB11147)

摘　　要：通过沉积SiNx薄膜和H2退火表面处理工艺对低成本多晶硅太阳电池进行了处理,对表面处理前后的电池效率进行了对比测试,详细地研究了这两种表面处理工艺对电池的短路电流、开路电压、填充因子和转换效率的影响。实验发现,沉积了SiNx薄膜的低成本多晶硅太阳电池的效率在原有基础上提高了1.8%左右;而经过H2退火后的电池效率则出现了效率衰减。与此同时,对成本相对高的太阳能级多晶硅电池也进行了H2退火,与低成本多晶硅电池相比,其效率增加明显,与低成本太阳电池呈现了相反的现象。最后分析了两种表面处理工艺对电池性能造成影响的原因。Two surface processing methods, which includes depositing SiNx thin him on the cells and annealing the cells in H2, were carried out on low-cost multi-crystalline silicon solar cells. The efficiency of the solar cells was tested before and after the surface processing. And the effects of the two surface processing methods on the short-circuit current, open-circuit voltage, fill factor and efficiency were carried out in this paper. The results show that the efficiency of the low-cost solar cells is improved by 1.8 % after depositing SiNx thin film on the cells, but after H2annealing, the efficiency is degraded. And high-cost solar-graded multi-crystalline silicon solar cells are also annealed in H2 atmosphere, but its efficiency increases, which shows different tendency compared to low-cost multi-crystalline silicon solar cells. Finally the factors resulting in different effects by the two methods are analyzed and discussed.

关 键 词：多晶硅电池 低成本 表面处理 

分 类 号：TM914.41[电气工程—电力电子与电力传动]