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Title: Transparent Conductive Adhesives for Tandem Solar Cells Using Polymer-Particle Composites

Abstract

Transparent conductive adhesives (TCAs) can enable conductivity between two substrates, which is useful for a wide range of electronic devices. Here, we have developed a TCA composed of a polymer-particle blend with ethylene-vinyl acetate as the transparent adhesive and metal-coated flexible poly(methyl methacrylate) microspheres as the conductive particles that can provide conductivity and adhesion regardless of the surface texture. This TCA layer was designed to be nearly transparent, conductive in only the out-of-plane direction, and of practical adhesive strength to hold the substrates together. The series resistance was measured at 0.3 and 0.8 O cm2 for 8 and 0.2% particle coverage, respectively, while remaining over 92% was transparent in both cases. For applications in photovoltaic devices, such as mechanically stacked multijunction III-V/Si cells, a TCA with 1% particle coverage will have less than 0.5% power loss due to the resistance and less than 1% shading loss to the bottom cell.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1426645
Report Number(s):
NREL/JA-5K00-68945
Journal ID: ISSN 1944-8244; XW7272
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 9; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; adhesives; flexible microspheres; lamination; polymer-particle composites; tandem solar cells; transparent conductor

Citation Formats

Klein, Talysa, Lee, Benjamin G, Schnabel, Manuel, Warren, Emily L, Stradins, Paul, Tamboli, Adele C, and Van Hest, Marinus F. Transparent Conductive Adhesives for Tandem Solar Cells Using Polymer-Particle Composites. United States: N. p., 2018. Web. doi:10.1021/acsami.8b00175.
Klein, Talysa, Lee, Benjamin G, Schnabel, Manuel, Warren, Emily L, Stradins, Paul, Tamboli, Adele C, & Van Hest, Marinus F. Transparent Conductive Adhesives for Tandem Solar Cells Using Polymer-Particle Composites. United States. doi:10.1021/acsami.8b00175.
Klein, Talysa, Lee, Benjamin G, Schnabel, Manuel, Warren, Emily L, Stradins, Paul, Tamboli, Adele C, and Van Hest, Marinus F. Wed . "Transparent Conductive Adhesives for Tandem Solar Cells Using Polymer-Particle Composites". United States. doi:10.1021/acsami.8b00175.
@article{osti_1426645,
title = {Transparent Conductive Adhesives for Tandem Solar Cells Using Polymer-Particle Composites},
author = {Klein, Talysa and Lee, Benjamin G and Schnabel, Manuel and Warren, Emily L and Stradins, Paul and Tamboli, Adele C and Van Hest, Marinus F},
abstractNote = {Transparent conductive adhesives (TCAs) can enable conductivity between two substrates, which is useful for a wide range of electronic devices. Here, we have developed a TCA composed of a polymer-particle blend with ethylene-vinyl acetate as the transparent adhesive and metal-coated flexible poly(methyl methacrylate) microspheres as the conductive particles that can provide conductivity and adhesion regardless of the surface texture. This TCA layer was designed to be nearly transparent, conductive in only the out-of-plane direction, and of practical adhesive strength to hold the substrates together. The series resistance was measured at 0.3 and 0.8 O cm2 for 8 and 0.2% particle coverage, respectively, while remaining over 92% was transparent in both cases. For applications in photovoltaic devices, such as mechanically stacked multijunction III-V/Si cells, a TCA with 1% particle coverage will have less than 0.5% power loss due to the resistance and less than 1% shading loss to the bottom cell.},
doi = {10.1021/acsami.8b00175},
journal = {ACS Applied Materials and Interfaces},
issn = {1944-8244},
number = 9,
volume = 10,
place = {United States},
year = {2018},
month = {2}
}