Advanced screen printable Thin Film PV front side silver conductor compositions

Author

Dorfman, Jay R. ; Anderson, David K. ; Arancio, Vince

Author_Institution

DuPont Microcircuit Mater., Research Triangle Park, NC, USA

fYear

2009

fDate

7-12 June 2009

Abstract

A series of new Thin-Film PV front-side silver conductor compositions has been developed for CIGS and a-Si Thin-Film PV cells. These new conductors provide outstanding adhesion to various Transparent Conductive Oxides (TCO.´s) such as Indium Tin Oxide (ITO). Additionally, these front-side silvers exhibit very high conductivity and extremely low contact resistance to the TCO. They have been formulated for screen-printing manufacturing operations and are easily processed at 130Â°-180 C for 5-10 minutes in a manufacturing oven. Reliability studies on these conductors have shown very good stability out to 600 hours of storage at 85Â°C/85% RH. The details of the compositions and their properties as well as the typical construction of the Thin-Film cell using these front-side silvers will be discussed.

Keywords

adhesion; contact resistance; electrical conductivity; reliability; semiconductor industry; silver; solar cells; thin film devices; Ag; adhesion; conductivity; contact resistance; front-side silver conductor compositions; reliability; screen-printing; temperature 130 degC to 180 degC; thin-film PV solar cells; time 5 min to 10 min; time 600 h; transparent conductive oxides; Adhesives; Conductive films; Conductivity; Conductors; Contact resistance; Indium tin oxide; Manufacturing processes; Ovens; Silver; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE

Conference_Location

Philadelphia, PA

ISSN

0160-8371

Print_ISBN

978-1-4244-2949-3

Electronic_ISBN

0160-8371

Type

conf

DOI

10.1109/PVSC.2009.5411269

Filename

5411269