Global to push GA events into
skip to main content

Title: Optical enhancing durable anti-reflective coating

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:
OSTI Identifier:
1260250
Assignee:
Enki Technology, Inc. (San Jose, CA) DOEEE
Patent Number(s):
9,382,449
Application Number:
14/491,259
Contract Number:
EE0006040
Resource Relation:
Patent File Date: 2014 Sep 19
Research Org:
Enki Technology, Inc., San Jose, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

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

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

Low reflectance transparent material having antisoiling properties
patent, August 1987

Similar records in DOepatents and OSTI.GOV collections: