Indium-less transparent metalized layers

摘要

Thin indium-less “optically porous” layers adapted to replace traditional ITO layers are provided herein. A thin metalized film adapted to carry an electrical charge can include a dense pattern of small openings to allow the transmission of light to or from an underlying semiconductor material. The pattern of openings can create a regular or irregular grid pattern of low aspect ratio fine-line metal conductors. Creation of this optically porous metalized film can include the printing of a catalytic precursor material, such as palladium in solution in a pattern on a substrate, drying or curing the catalytic precursor, and the deposition of a thin layer of metal, such as copper on the dried precursor to form the final conductive and optically porous film.

主权项

1. An optoelectronic device, comprising:
a substrate having a surface; and an optically-porous electrically-conductive layer on the surface of the substrate, wherein the optically-porous electrically-conductive layer has a pattern that defines a plurality of fine openings therethrough such that the optically-porous electrically-conductive layer has an optical transmissivity of at least 85%, the optically-porous electrically-conductive layer comprising elemental palladium monoatomically bound to the surface of the substrate and an electrically conductive layer disposed on the monoatomically-bound elemental palladium.