Electrically conductive polymeric compositions, contacts, assemblies, and methods

摘要

Electrically conductive polymeric compositions adapted for use in forming electronic devices are disclosed. The compositions are thermally curable at temperatures less than about 250° C. Compositions are provided which may be solvent-free and so can be used in processing or manufacturing operations without solvent recovery concerns. The compositions utilize (i) fatty acid modified epoxy acrylate and/or methacrylate monomer(s) and/or oligomer(s), (ii) fatty acid modified polyester acrylate and/or methacrylate monomer(s) and/or oligomer(s), or combinations of (i) and (ii). Also described are electronic assemblies such as solar cells using the various compositions and related methods.

主权项

1. A photovoltaic device comprising a plurality of layers, and an electrically conductive member, the electrically conductive member formed from a composition comprising:
(a) from about 70% to about 90% by weight of electrically conductive silver particles; and (b) from about 0.1% to about 30% by weight of a selection from the group consisting of
(i) fatty acid modified epoxy acrylate and/or methacrylate monomer(s) or oligomer(s),(ii) fatty acid modified polyester acrylate and/or methacrylate monomer(s) or oligomer(s), and(iii) combination of (i) and (ii) wherein the composition is solvent-free and in the form of a paste that can be screen printed onto a substrate and thereafter cured at a temperature of less than 250° C. to form an electrically conductive contact, trace, circuit and/or other electrically conductive region.