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Title: Composition and method for encapsulating photovoltaic devices

Abstract

A composition and method for encapsulating a photovoltaic device which minimizes discoloration of the encapsulant. The composition includes an ethylene-vinyl acetate encapsulant, a curing agent, an optional ultraviolet light stabilizer, and/or an optional antioxidant. The curing agent is preferably 1,1-di-(t-butylperoxy)-3,3,5-trimethylcyclohexane; the ultraviolet light stabilizer is bis-(N-octyloxy-tetramethyl) piperidinyl sebacate and the antioxidant is selected from the group consisting of tris (2,4-di-tert-butylphenyl) phosphite, tetrakis methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) methane, octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, and 2,2'-ethylidene bis(4,6-di-t-butylphenyl) fluorophosponite. The composition is applied to a solar cell then cured. The cured product contains a minimal concentration of curing-generated chromophores and resists UV-induced degradation.

Inventors:
 [1]
  1. (Golden, CO)
Issue Date:
Research Org.:
Midwest Research Institute
OSTI Identifier:
873115
Patent Number(s):
6093757
Assignee:
Midwest Research Institute (Kansas City, MO) NREL
DOE Contract Number:  
AC36-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composition; method; encapsulating; photovoltaic; devices; device; minimizes; discoloration; encapsulant; ethylene-vinyl; acetate; curing; agent; optional; ultraviolet; light; stabilizer; antioxidant; preferably; 1-di-; t-butylperoxy; -3; 5-trimethylcyclohexane; bis-; n-octyloxy-tetramethyl; piperidinyl; sebacate; selected; consisting; tris; 4-di-tert-butylphenyl; phosphite; tetrakis; methylene; 5-di-tert-butyl-4-hydroxyhydrocinnamate; methane; octadecyl; -ethylidene; bis; 6-di-t-butylphenyl; fluorophosponite; applied; solar; cell; cured; product; contains; minimal; concentration; curing-generated; chromophores; resists; uv-induced; degradation; vinyl acetate; photovoltaic devices; ultraviolet light; solar cell; photovoltaic device; curing agent; light stabilizer; induced degradation; ethylene-vinyl acetate; violet light; /524/136/156/257/

Citation Formats

Pern, Fu-Jann. Composition and method for encapsulating photovoltaic devices. United States: N. p., 2000. Web.
Pern, Fu-Jann. Composition and method for encapsulating photovoltaic devices. United States.
Pern, Fu-Jann. Sat . "Composition and method for encapsulating photovoltaic devices". United States. https://www.osti.gov/servlets/purl/873115.
@article{osti_873115,
title = {Composition and method for encapsulating photovoltaic devices},
author = {Pern, Fu-Jann},
abstractNote = {A composition and method for encapsulating a photovoltaic device which minimizes discoloration of the encapsulant. The composition includes an ethylene-vinyl acetate encapsulant, a curing agent, an optional ultraviolet light stabilizer, and/or an optional antioxidant. The curing agent is preferably 1,1-di-(t-butylperoxy)-3,3,5-trimethylcyclohexane; the ultraviolet light stabilizer is bis-(N-octyloxy-tetramethyl) piperidinyl sebacate and the antioxidant is selected from the group consisting of tris (2,4-di-tert-butylphenyl) phosphite, tetrakis methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) methane, octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, and 2,2'-ethylidene bis(4,6-di-t-butylphenyl) fluorophosponite. The composition is applied to a solar cell then cured. The cured product contains a minimal concentration of curing-generated chromophores and resists UV-induced degradation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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