US 10,396,218 B2 · Self-assembly pattering for fabricating thin-film devices

Abstract

A method (200) for fabricating patterns on the surface of a layer of a device (100), the method comprising: providing at least one layer (130, 230); adding at least one alkali metal (235); controlling the temperature (2300) of the at least one layer, thereby forming a plurality of self-assembled, regularly spaced, parallel lines of alkali compound embossings (1300, 1305) at the surface of the layer. The method further comprises forming cavities (236, 1300) by dissolving the alkali compound embossings. The method (200) is advantageous for nanopatterning of devices (100) without using templates and for the production of high efficiency optoelectronic thin-film devices (100).

Claims24

Dependent claims

A method for fabricating patterns on a surface of a layer of a solar cell, an optoelectronic, or a photovoltaic device formed on a substrate, comprising:

adding at least one alkali metal to at least one layer that is disposed on the substrate;
and
processing the at least one layer to form a plurality of embossings at the surface of the at least one layer by a method comprising:
forming a plurality of alkali crystals on the surface of the at least one layer, wherein the plurality of alkali crystals comprise at least one alkali metal;
and
forming the alkali crystals so that the formed alkali crystals are disposed within a portion of the at least one layer, and thereby forming at least a first line of regularly spaced embossings that are adjacent to at least a second line of regularly spaced embossings within at least one region of the at least one layer.

3 more elements

Dependencies are inferred from the claim text.

Self-assembly pattering for fabricating thin-film devices

Life of this patent

Self-assembly pattering for fabricating thin-film devices

Life of this patent

Abstract

Claims24