Investigation of Tellurite Based Fire-Through Dielectric (FTD) Ag Paste Contacts for Si Solar Cell with High Sheet Resistance Emitter
7 Pages Posted: 29 Mar 2018 Last revised: 20 Apr 2018
Date Written: April 15, 2018
This paper reports the importance of PbO/TeO2 ratio in the formation of Ag2Te, which is responsible for increasing the reformed glass conductivity after sintering. The presence of Ag2Te, a degenerate semiconductor, seen in the Raman Spectra, after HNO3 etching of the gridline and its absence in the HF etched counterpart, supports this assertion. Thus, the increase glass conductivity after sintering has the potential of enabling formation of high quality contacts to emitter with high sheet resistance.
Keywords: TeO2, AlBSF cell, Metallization, screen-printed cell.
Suggested Citation: Suggested Citation