skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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):
9,382,449
Application Number:
14/491,259
Assignee:
Enki Technology, Inc. (San Jose, CA)
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}
}

Patent:

Save / Share:

Works referenced in this record:

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

  • Aegerter, M. A.; Almeida, R.; Soutar, A.
  • Journal of Sol-Gel Science and Technology, Vol. 47, Issue 2
  • DOI: 10.1007/s10971-008-1761-9

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
  • DOI: 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

  • Kimber, A.; Mitchell, L.; Nogradi, S.
  • 2006 IEEE 4th World Conference on Photovoltaic Energy Conference
  • DOI: 10.1109/WCPEC.2006.279690

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)
  • DOI: 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

  • Xu, Yao; Zhang, Lei; Wu, Dong
  • Journal of the Optical Society of America B, Vol. 22, Issue 4
  • DOI: 10.1364/JOSAB.22.000905

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

  • Hacke, Peter; Terwilliger, Kent; Smith, Ryan
  • 2011 37th IEEE Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2011.6186079

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

  • Hacke, Peter; Terwilliger, Kent; Glick, Steven
  • 2010 35th IEEE Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2010.5614472

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

  • Pingel, S.; Frank, O.; Winkler, M.
  • 2010 35th IEEE Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2010.5616823

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

  • Rose, Doug; Koehler, Oliver; Kaminar, Neil
  • 2006 IEEE 4th World Conference on Photovoltaic Energy Conference
  • DOI: 10.1109/WCPEC.2006.279898

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

  • Schutze, M.; Junghanel, M.; Koentopp, M. B.
  • 2011 37th IEEE Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2011.6186080

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

  • Tatapudi, S.; Ebneali, F.; Kuitche, J.
  • 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2013.6744452