文献类型：期刊文献

英文题名：Investigation on PbO-B2O3-SiO2-RxOyGlasses Applied in Noncontact Silver Paste for Crystalline Silicon Solar Cells

作者：Li, Hui[1];Tong, Hua[1];Zhang, Jiefeng[1];Li, Guoqing[1];Yang, Yunxia[1];Liu, Cui[1];Li, Hongbo[1];Yuan, Xiao[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2020

卷号：49

期号：9

起止页码：5422

外文期刊名：JOURNAL OF ELECTRONIC MATERIALS

收录：;EI(收录号：20202708900968);WOS:【SCI-EXPANDED(收录号:WOS:000544546600002)】；

基金：This study was supported by the National Key Research and Development Project (No. 2018YFB1500301).

语种：英文

外文关键词：Silver paste; solderability; glass; crystalline silicon solar cells; intermetallic compound

摘要：Attempts to improve the application performance of noncontact silver (Ag) screen-printing paste for crystalline silicon solar cells, especially in terms of solderability, depend heavily on controlling the properties of the glass additive therein. Taking PbO-B2O3-SiO2-R(x)O(y)glasses as an example, this work demonstrates an improvement in the Ag paste due to theR(x)O(y)(e.g., ZnO, Bi2O3, Al2O3, and MgO) component. TheR(x)O(y)components were found to help improve the sintering compactness of the Ag paste. The inclusion of the differentR(x)O(y)components resulted in obvious differences in the soldering state of the sintered Ag grid. Microscopic observations revealed that the soldering state was related to the covering of the solder on the Ag grid and the growth rate of the intermetallic compound Ag3Sn during soldering. Comparatively, the sintered Ag grid was soldered more firmly when the glass containing the Bi(2)O(3)or Al(2)O(3)component was used in the Ag paste. This is due to the higher coverage of solder on these Ag grids and the appropriate growth rate of Ag3Sn. Considering these findings, the functions of theR(x)O(y)components are discussed comprehensively.