Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
80052 | Solar Energy Materials and Solar Cells | 2008 | 5 Pages |
Abstract
The interface structure of screen-printed silver contacts on a crystalline silicon solar cell has been studied by transmission electron microscopy (TEM). TEM results confirmed that the glassy-phase plays an important role in contact properties. There are at least three different microstructures present in optimal fired contacts. The location where silver-bulk directly contacts silicon is observed through SEM, and this is actually a very thin glass layer in between. In addition, high-density silver embryos on silicon were found for samples fired optimally. The results presented in this study suggest that Ag-bulk/thin-glass-layer/Si contact is the most decisive path for current transportation.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Ching-Hsi Lin, Song-Yeu Tsai, Shih-Peng Hsu, Ming-Hsun Hsieh,