Improved Ag-Si interface performance for Si solar cells using a novel Te-based glass and recrystallization process of Ag  

作　　者：Xin-Xin Pi Xiu-Hua Cao Ji-Shi Chen Le Zhang Zhen-Xiao Fu Li-Xi Wang Qi-Tu Zhang 

机构地区：[1]College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China [2]Technology Center,Guangdong Fenghua Advanced Technology Company Limited,Zhaoqing 526000,China

出　　处：《Rare Metals》2021年第1期84-89,共6页稀有金属（英文版）

基　　金：financially supported by the Guangdong Province University-Industry Cooperation Projects(No.2011B090400238);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。

摘　　要：In order to prove that the Te-based glass frit could be applied to Ag pastes to fabricate Ag electrode and elucidate the reactions among Ag,the frit,and the Si wafer,the Te-based glass and Ag pastes with different contents of glass frit(0 wt%,1 wt%,3 wt%,5 wt%,and 7 wt%)were prepared.The microstructures of Ag electrodes and the phase analysis of interface between Ag electrodes and the Si wafer were investigated using scanning electron microscopy(SEM)coupled with energy-dispersive X-ray spectroscopy(EDX)and X-ray diffraction(XRD).When the content of glass frit is 3 wt%,the Ag electrode has good adhesion with Si wafer.What’s more,Ag crystallites and metallic Te could be found on the Si wafer.These results suggest that the TeO_(2) in the glass frit could react with SiNx anti-reflecting coating(ARC)and Si to serve as a medium for forming Ag crystallites.

关 键 词：Solar cells Ag electrode Silver paste Tellurite glass Ag crystallites 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TQ171.7[化学工程—玻璃工业]