NDLI: Screen printable Ag-Al metal pastes for $p^{+}$ silicon application in solar cells

Content Provider	IEEE Xplore Digital Library
Author	Seyedmohammadi, S. Graddy, E. Shaikh, A.
Copyright Year	2010
Description	Author affiliation: Ferro Coproration Electronic, Color and Glass Materials (Electronic Material Systems), 1395 Aspen Way, Vista, CA. 92081, USA (Seyedmohammadi, S.; Graddy, E.; Shaikh, A.)
Abstract	In this work, we present the development of a new series of screen printable metal contact pastes for p+ doped Si surfaces in solar cells. The p-surface contact metallization is needed for new devices based on n-type wafers and for bifacial cells. The pastes discussed in this paper are lead-free and phthalate-free to address health and environmental concerns. The new series of pastes not only satisfy this expectation but also meet viscosity and printability requirements as well as performance related parameters such as contact resistance. A series of conductive pastes was formulated by varying metal components and glass chemistry. A sequence of analytical experiments was performed to identify the correlation between the paste chemistry and electrical characteristics including bulk resistivity and contact resistance. A cross section SEM study was conducted to identify a potential contact mechanism that reveals a correlation between the metal paste uniform shape spikes and contact resistance.
Starting Page	003600
Ending Page	003603
File Size	631355
Page Count	4
File Format	PDF
ISBN	9781424458905
ISSN	01608371
e-ISBN	9781424458929
DOI	10.1109/PVSC.2010.5614384
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Metals Photovoltaic cells Contact resistance Conductivity Correlation
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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