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

See all articles by Abasifreke Ebong

Abasifreke Ebong

University of North Carolina (UNC) at Chapel Hill

Nirupama Bezawada

University of North Carolina (UNC) at Chapel Hill

Veysel Unsur

University of North Carolina (UNC) at Chapel Hill

Ren Keming

University of North Carolina (UNC) at Chapel Hill

Ahrar Chowdhury

University of North Carolina (UNC) at Chapel Hill

Date Written: April 15, 2018

Abstract

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

Ebong, Abasifreke and Bezawada, Nirupama and Unsur, Veysel and Keming, Ren and Chowdhury, Ahrar, Investigation of Tellurite Based Fire-Through Dielectric (FTD) Ag Paste Contacts for Si Solar Cell with High Sheet Resistance Emitter (April 15, 2018). 7th Workshop on Metallization and Interconnection for Crystalline Silicon Solar Cells, 2017. Available at SSRN: https://ssrn.com/abstract=3152251 or http://dx.doi.org/10.2139/ssrn.3152251

Abasifreke Ebong (Contact Author)

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

Nirupama Bezawada

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

Veysel Unsur

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

Ren Keming

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

Ahrar Chowdhury

University of North Carolina (UNC) at Chapel Hill ( email )

102 Ridge Road
Chapel Hill, NC NC 27514
United States

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