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Office of Scientific and Technical Information
 

Broadband and omnidirectional polymer antireflection coatings

Patent ·
OSTI ID:1892795
;
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.
Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF)
DOE Contract Number:
AR0000626
Assignee:
The Penn State Research Foundation (State College, PA)
Patent Number(s):
11,294,102
Application Number:
16/904,041
OSTI ID:
1892795
Country of Publication:
United States
Language:
English

References (2)

Co-evaporation of fluoropolymer additives for improved thermal stability of organic semiconductors conference September 2017
Beware of the hazards: limitations of the proportional hazards assumption journal September 2021

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