Title: High gain durable anti-reflective coating

Abstract

Disclosed herein are polysilsesquioxane-based anti-reflective coating (ARC) compositions, methods of preparation, and methods of deposition on a substrate. In one embodiment, the polysilsesquioxane of this disclosure is prepared in a two-step process of acid catalyzed hydrolysis of organoalkoxysilane followed by addition of tetralkoxysilane that generates silicone polymers with >40 mol % silanol based on Si-NMR. These high silanol siloxane polymers are stable and have a long shelf-life in polar organic solvents at room temperature. Also disclosed are low refractive index ARC made from these compositions with and without additives such as porogens, templates, thermal radical initiator, photo radical initiators, crosslinkers, Si--OH condensation catalyst and nano-fillers. Also disclosed are methods and apparatus for applying coatings to flat substrates including substrate pre-treatment processes, coating processes and coating curing processes including skin-curing using hot-air knives. Also disclosed are coating compositions and formulations for highly tunable, durable, highly abrasion-resistant functionalized anti-reflective coatings.

Inventors:

Maghsoodi, Sina; Brophy, Brenor L.; Colson, Thomas E.; Gonsalves, Peter R.; Abrams, Ze'ev R.

Issue Date:

Tue Jun 27 00:00:00 EDT 2017

Research Org.:

Enki Technology, Inc. San Jose, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1366747

Patent Number(s):

9688863

Application Number:

15/182,729

Assignee:

Enki Technology, Inc.

Patent Classifications (CPCs):

C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

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C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS

C03C17/007 - {containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase}
C03C17/30 - with silicon-containing compounds
C03C2217/20 - Materials for coating a single layer on glass
C03C2217/425 - consisting of a porous layer
C03C2217/45 - Inorganic continuous phases
C03C2217/465 - having a specific shape
C03C2217/47 - consisting of a specific material
C03C2217/732 - made of a single layer

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

C08K3/36 - Silica

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D173/00 - Coating compositions based on macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C09D159/00 - C09D171/00
C09D183/04 - Polysiloxanes
C09D183/08 - containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
C09D5/006 - {Anti-reflective coatings}
C09D7/61 - inorganic

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B1/11 - Anti-reflection coatings
G02B1/111 - using layers comprising organic materials
G02B1/12 - by surface treatment, e.g. by irradiation
G02B1/14 - Protective coatings, e.g. hard coatings
G02B5/021 - {the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures}
G02B5/0215 - {the surface having a regular structure}
G02B5/0221 - {the surface having an irregular structure

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

H01L31/02168 - {the coatings being antireflective or having enhancing optical properties for the solar cells}
H01L31/18 - Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof
H01L33/005 - {Processes}
H01L33/44 - characterised by the coatings, e.g. passivation layer or anti-reflective coating

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P20/582 - of unreacted starting or intermediate materials

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DOE Contract Number:  

EE0006810

Resource Type:

Patent

Resource Relation:

Patent File Date: 2016 Jun 15

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY