Research Triangle Park, NC, June 8, 2009
MCM delivers technical topic at IEEE Photovoltaic Specialists Conference
DuPont Microcircuit Materials representatives today delivered a technical presentation to the photovoltaic industry during the 34th IEEE Photovoltaic Specialists Conference in Philadelphia, PA.
Advanced Screen-Printable Thin-Film PV Front-Side Silver Conductor Compositions
By Jay R Dorfman, Vince Arancio, David K Anderson
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 130°-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 85°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.
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