Title: Deposition and post-processing techniques for transparent conductive films

Abstract

In one embodiment, a method is provided for fabrication of a semitransparent conductive mesh. A first solution having conductive nanowires suspended therein and a second solution having nanoparticles suspended therein are sprayed toward a substrate, the spraying forming a mist. The mist is processed, while on the substrate, to provide a semitransparent conductive material in the form of a mesh having the conductive nanowires and nanoparticles. The nanoparticles are configured and arranged to direct light passing through the mesh. Connections between the nanowires provide conductivity through the mesh.

Inventors:

Christoforo, Mark Greyson; Mehra, Saahil; Salleo, Alberto; Peumans, Peter

Issue Date:

2015-01-13

Research Org.:

Stanford Univ., CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1167212

Patent Number(s):

8932898

Application Number:

13/350,511

Assignee:

The Board of Trustees of the Leland Stanford Junior Univerity (Palo Alto, CA)

Patent Classifications (CPCs):

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E10/50 - Photovoltaic [PV] energy

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L51/447 - {Light trapping means}
H01L51/442 - {transparent electrodes, e.g. ITO, TCO}

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F3/24 - After-treatment of workpieces or articles {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E10/549 - organic PV cells

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G9/02 - Oxides

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F1/0025 - {Nanofibres or nanotubes}

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C32/0021 - {Matrix based on noble metals, Cu or alloys thereof}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L31/1884 - {Manufacture of transparent electrodes, e.g. TCO, ITO}
H01L51/5268 - {Scattering means}

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2003/248 - {Thermal after-treatment}

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C24/08 - by application of heat or pressure and heat

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F1/0044 - {Nanometer size structures}
B22F1/0059 - {Metallic powders mixed with a lubricating or binding agent or organic material}
B22F3/002 - {Manufacture of articles essentially made from metallic fibres}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L31/022483 - {composed of zinc oxide [ZnO]}

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F2301/255 - Silver or gold
B22F3/105 - by using electric current {other than for infra-red radiant energy}, laser radiation or plasma
B22F7/004 - {comprising at least one non-porous part}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L31/022466 - {made of transparent conductive layers, e.g. TCO, ITO layers}

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C24/00 - Coating starting from inorganic powder
C23C4/123 - Spraying molten metal

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DOE Contract Number:  

FG36-08GO18005

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Jan 13

Country of Publication:

United States

Language:

English

Subject:

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY