绒面结构对低成本多晶硅太阳电池性能的影响  

The effect of texturing on low-cost polycrystalline silicon solar cells

作　　者：张妹玉[1] 翁铭华[1] 周笔[1] 

机构地区：[1]闽江学院物理学与电子信息工程系,福建福州350121

出　　处：《闽江学院学报》2013年第5期38-42,共5页Journal of Minjiang University

基　　金：福建省自然科学基金项目(2012J05122);福建省教育厅科技项目(JB11147);国家自然科学基金项目(11247287)

摘　　要：采用化学腐蚀法在多晶硅材料的表面制备了绒面结构,腐蚀液包括富HF的HNO3-HF-H2O溶液,富HNO3的HNO3-HF-H2O溶液和3%的碱腐蚀液.通过表面形貌SEM、反射谱和少子寿命的测试,详细地研究了不同腐蚀液制备的绒面的形貌、光学特征和少子寿命.最后在绒面的基础上制备了低成本多晶硅太阳电池,分析了绒面结构对电池性能的影响.结果表明,经过富HF的HNO3:HF:H2O溶液腐蚀后制备的低成本多晶硅电池的效率高于经其他两种腐蚀后所制备的电池效率.Polycrystalline silicon wafers were textured by chemical treatments, which include HF- rich HNO3 - HF - H20 mixtures, HNO3 - rich HNO3 - HF - H20 mixtures and 3% alkali treatments. By using SEM, reflectance spectrum and carrier lifetime test, detailed studies of surface morphology, optical properties and carrier lifetime of different etched surfaces were carried out in this paper. Finally the low- cost polycrystalline silicon solar cells were prepared and the effect of texturing on the properties was ana- lyzed. The results show that, the efficiency of the low-cost solar cells with HF- rich HNO3 -HF- H20 mixtures treatment is higher than the other two treatments.

关 键 词：多晶硅电池 绒面结构 低成本 

分 类 号：TM914.41[电气工程—电力电子与电力传动] TM615