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Title: Broadband and omnidirectional polymer antireflection coatings

Abstract

A method for generating antireflective coatings for polymeric substrates using a deposition process and/or a dissolving process can provide a coating onto the outer surface of the substrate. Some embodiments can include a GLAD generated fluoropolymer coating or a co-evaporated fluoropolymer coating on a substrate that may achieve ultralow refractive index as well as improved adhesion and durability properties on polymeric substrates. In some embodiments, the deposition process is performed such that a fluoropolymer can be evaporated to form chain fragments of the fluoropolymer. The chain fragments diffused into the substrate can subsequently re-polymerize, interlocking with the polymer chains of the substrate. In some embodiments, the co-evaporation process can form a nanoporous polymer chain scaffold of the fluoropolymer, from which a sacrificial material can be dissolved out. The formed coating can be a multilayer or continuously-graded antireflective coating that has strong adhesion with the substrate.

Inventors:
;
Issue Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735080
Patent Number(s):
10725209
Application Number:
16/465,641
Assignee:
The Penn State Research Foundation (University Park, PA)
Patent Classifications (CPCs):
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
DOE Contract Number:  
AR0000626
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/09/2018
Country of Publication:
United States
Language:
English

Citation Formats

Wang, Baomin, and Giebink, Noel C. Broadband and omnidirectional polymer antireflection coatings. United States: N. p., 2020. Web.
Wang, Baomin, & Giebink, Noel C. Broadband and omnidirectional polymer antireflection coatings. United States.
Wang, Baomin, and Giebink, Noel C. Tue . "Broadband and omnidirectional polymer antireflection coatings". United States. https://www.osti.gov/servlets/purl/1735080.
@article{osti_1735080,
title = {Broadband and omnidirectional polymer antireflection coatings},
author = {Wang, Baomin and Giebink, Noel C.},
abstractNote = {A method for generating antireflective coatings for polymeric substrates using a deposition process and/or a dissolving process can provide a coating onto the outer surface of the substrate. Some embodiments can include a GLAD generated fluoropolymer coating or a co-evaporated fluoropolymer coating on a substrate that may achieve ultralow refractive index as well as improved adhesion and durability properties on polymeric substrates. In some embodiments, the deposition process is performed such that a fluoropolymer can be evaporated to form chain fragments of the fluoropolymer. The chain fragments diffused into the substrate can subsequently re-polymerize, interlocking with the polymer chains of the substrate. In some embodiments, the co-evaporation process can form a nanoporous polymer chain scaffold of the fluoropolymer, from which a sacrificial material can be dissolved out. The formed coating can be a multilayer or continuously-graded antireflective coating that has strong adhesion with the substrate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record:

Durable broadband ultralow index fluoropolymer antireflection coatings for plastic optics
journal, January 2017


Deposition of polytetrafluoroethylene films by laser ablation
journal, March 1993


Process for producing thin polymer film by pulsed laser evaporation
patent, February 1994


Deposition of amorphous fluoropolymer thin films by thermolysis of Teflon amorphous fluoropolymer
journal, April 1992


Anti-reflection coatings and coated articles
patent, November 1999