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Title: Optical enhancing 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 embodiments, 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 the 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, Si--OH condensation catalyst and/or nanofillers. Also disclosed are methods and apparatus for applying coatings to flat substrates including substrate pre-treatment processes, coating processes including flow coating and roll coating, 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:
; ;
Issue Date:
Research Org.:
Enki Technology, Inc., San Jose, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1260250
Patent Number(s):
9382449
Application Number:
14/491,259
Assignee:
Enki Technology, Inc. (San Jose, CA)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
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
DOE Contract Number:  
EE0006040
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Sep 19
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Maghsoodi, Sina, Varadarajan, Aravamuthan, and Movassat, Meisam. Optical enhancing durable anti-reflective coating. United States: N. p., 2016. Web.
Maghsoodi, Sina, Varadarajan, Aravamuthan, & Movassat, Meisam. Optical enhancing durable anti-reflective coating. United States.
Maghsoodi, Sina, Varadarajan, Aravamuthan, and Movassat, Meisam. Tue . "Optical enhancing durable anti-reflective coating". United States. https://www.osti.gov/servlets/purl/1260250.
@article{osti_1260250,
title = {Optical enhancing durable anti-reflective coating},
author = {Maghsoodi, Sina and Varadarajan, Aravamuthan and Movassat, Meisam},
abstractNote = {Disclosed herein are polysilsesquioxane based anti-reflective coating (ARC) compositions, methods of preparation, and methods of deposition on a substrate. In embodiments, 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 the 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, Si--OH condensation catalyst and/or nanofillers. Also disclosed are methods and apparatus for applying coatings to flat substrates including substrate pre-treatment processes, coating processes including flow coating and roll coating, 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {7}
}

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Works referenced in this record:

Coatings made by sol–gel and chemical nanotechnology
journal, June 2008


Soiling and other optical losses in solar-tracking PV plants in navarra
journal, July 2010

  • García, Miguel; Marroyo, Luis; Lorenzo, Eduardo
  • Progress in Photovoltaics: Research and Applications, Vol. 19, Issue 2, p. 211-217
  • https://doi.org/10.1002/pip.1004

The Effect of Soiling on Large Grid-Connected Photovoltaic Systems in California and the Southwest Region of the United States
conference, May 2006


A highly abrasive-resistant, long-lasting anti-reflective coating for PV module glass
conference, June 2014

  • Pop, Sergiu C.; Abbaraju, Venkata; Brophy, Brenor
  • 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC), 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
  • https://doi.org/10.1109/PVSC.2014.6925490

Long-term durability of sol–gel porous coatings for solar glass covers
journal, March 2009


Surface modification of porous antireflective coatings for solar glass covers
journal, April 2011


Comparative study on hydrophobic anti-reflective films from three kinds of methyl-modified silica sols
journal, February 2005


Durable solgel antireflective films with high laser-induced damage thresholds for inertial confinement fusion
journal, January 2005


System voltage potential-induced degradation mechanisms in PV modules and methods for test
conference, June 2011


Test-to-Failure of crystalline silicon modules
conference, June 2010


Potential Induced Degradation of solar cells and panels
conference, June 2010


Mass Production of PV Modules with 18% Total-Area Efficiency and High Energy Delivery Per Peak Watt
conference, May 2006


Laboratory study of potential induced degradation of silicon photovoltaic modules
conference, June 2011


Potential induced degradation of pre-stressed photovoltaic modules: Effect of glass surface conductivity disruption
conference, June 2013