正银浆料用无铅玻璃特征温度对晶体硅太阳能电池电性能的影响  

Impact of Characteristic Temperatures of Lead-free Glass Frits for Front-contact Silver Paste on Electric Properties of Crystalline Si Solar Cells

作　　者：程思国 付明[1,2] 周洪[1,2] 华锴玮[1,2] 范琳 陈栋 

机构地区：[1]华中科技大学光学与电子信息学院,武汉430074 [2]教育部信息功能材料重点实验室(B类),武汉430074 [3]武汉优乐光电科技有限公司,武汉430206

出　　处：《硅酸盐学报》2017年第10期1523-1529,共7页Journal of The Chinese Ceramic Society

基　　金：武汉市科技局应用基础研究项目(2014010101010022)

摘　　要：利用综合差热分析和扫描电子显微镜(SEM)对V玻璃、Ge玻璃和Te玻璃特性进行了表征,研究了不同体系的玻璃对电池性能的影响。通过配方的优化和稀土金属氧化物掺杂的Te玻璃,制备出的多晶电池转换效率达16.72%,与铅玻璃的16.94%相当。研究表明:Te玻璃的玻璃化转变温度(Tg)约390℃,电池的转换效率较高;在烧结时,Te玻璃正银浆料能形成均匀的银微晶,形成良好的Ag–Si间Ohm接触。The properties of different lead-free glass frits for front silver contact were characterized by scanning electron microscopy, thermogravimetric analysis and differential scanning calorimetry, respectively. The effects of V glass, Ge glass and Te glass on performance of the scrystalline Si solar cell were investigated. Te glass has a glass transformation temperature（Tg） of approximately 390 ℃, and the conversion efficiency of the cell is high. Te glass front silver contact paste can form a uniform silver micro-crystal during sintering, and produce a Ag–Si ohmic-contact. The formula of Te–Bi glass was designed optimally and the polycrystalline silicon solar cells were prepared via doping the rare-earth element metal oxides. The conversion efficiency of Te–Bi glass（16.72%） is similar to that of lead glass frits（16.94%）.

关 键 词：晶体硅太阳能电池 无铅玻璃 热特性 电池性能 

分 类 号：TQ174[化学工程—陶瓷工业]