纳米银粉的制备及在太阳能背面银浆中的应用  

Preparation and Application in Solar Back Silver Paste of Nano Silver Powder

作　　者：张愿成 涂小平 刘玉杰 鲁业海 张雯君 刘祯 赵浩融 ZHANG Yuan-cheng;TU Xiao-ping;LIU Yu-jie;LU Ye-hai;ZHANG Wen-jun;LIU Wei;ZHAO Hao-rong(Shanghai Solar Engineering Technology Researchi Center Co.,Ltd.,Shanghai 200241,China;Guilin Electrical Equipment Scientific Research Institute Co.,Ltd.,Guangxi Guilin 541004,China)

机构地区：[1]上海太阳能工程技术研究中心有限公司,上海200241 [2]桂林电器科学研究院有限公司,广西桂林541004

出　　处：《电工材料》2019年第1期3-7,11,共6页Electrical Engineering Materials

基　　金：光伏电池用无铅环保型正面导电材料产业化技术研究;2016MH182

摘　　要：以葡萄糖为还原剂,银氨配合物为前驱体,加入PVP高分子保护剂,在碱性环境下制备出纳米级(50～200 nm)银粉。研究了反应介质PH值、保护剂量及反应温度在制备过程中对银粉的形貌、粒径和分散效果的影响。结果表明,将经过表面改性的纳米银粉应用到太阳能背面银浆中,能显著提高银浆的烧结活性,降低电阻率和加强焊接附着力。In this paper,using glucose as the reducing agent,silver-ammonium complexes as precursor,and PVP polymer as the protective agent,nano-scale silver powder(50~200 nm)was prepared in alkali environment.The effects of PH value of the reaction medium,protective dose and reaction temperature on the morphology,particle size of silver powder were investigated.The results show that the surface modification of nano silver powder and the application of nano silver powder to the silver paste on the back side of the solar energy can significantly improve the sintering activity of the silver paste,reduce the electrical resistivity and enhance the welding adhesion.

关 键 词：纳米银粉 分散性 背面银浆 烧结活性 电阻率 

分 类 号：TG146.32[一般工业技术—材料科学与工程] TM615[金属学及工艺—金属材料]