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Title: Diamond-Like Carbon Coatings as Encapsulants for Photovoltaic Solar Cells

Abstract

High-quality single-layer and bilayer diamond-like carbon (DLC) thin films are fabricated by two technologies, namely, ion-assisted plasma-enhanced deposition (IAPED) and electron cyclotron resonance (ECR) deposition. Deposition on various substrates, such as sapphires and solar cells, has been performed at low substrate temperatures (50 {approx} 80 C). The two deposition technologies allow good control over the growth conditions to produce DLC films with desired optical properties, thickness, and energy bandgap. The bilayer-structured DLC can be fabricated by using IAPED for the bottom layer followed by ECR for the top layer, or just by IAPED for both layers with different compositions. The DLC films have shown good spatial uniformity, density, microhardness, and adhesion strength. They exhibit excellent stability against attack by strong acids, prolonged damp-heat exposure at 85 C and 85% relative humidity, mechanical scratch, ultrasonication, and irradiation by ultraviolet (UV), protons, and electrons. When deposited on crystalline Si and GaAs solar cells in single-layer and/or bilayer structure, the DLC films not only serve as antireflection coating and protective encapsulant, but also improve the cell efficiencies.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab., Golden, CO (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15016452
Report Number(s):
NREL/CP-520-37374
TRN: US0502379
DOE Contract Number:  
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Conference: Prepared for the 31st IEEE Photovoltaics Specialists Conference and Exhibition, Lake Buena Vista, FL (US), 01/03/2005--01/07/2005; Other Information: PBD: 1 Feb 2005
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; ADHESION; ANTIREFLECTION COATINGS; CARBON; COATINGS; DEPOSITION; ELECTRON CYCLOTRON-RESONANCE; ELECTRONS; HUMIDITY; IRRADIATION; MICROHARDNESS; OPTICAL PROPERTIES; PROTONS; SOLAR CELLS; STABILITY; SUBSTRATES; THICKNESS; THIN FILMS; PV; DIAMOND-LIKE CARBON (DLC); ION-ASSISTED PLASMA-ENHANCED DEPOSITION (IAPED); ELECTRON CYCLOTRON RESONANCE (ECR); ULTRAVIOLET (UV); ANTIREFLECTION COATING; PROTECTIVE ENCAPSULANT; SOLAR ENERGY - PHOTOVOLTAICS

Citation Formats

Pern, F. J., Panosyan, Zh., Gippius, A. A., Kontsevoy, J. A., Touryan, K., Voskanyan, S., and Yengibaryan, Y. Diamond-Like Carbon Coatings as Encapsulants for Photovoltaic Solar Cells. United States: N. p., 2005. Web. doi:10.1109/PVSC.2005.1488389.
Pern, F. J., Panosyan, Zh., Gippius, A. A., Kontsevoy, J. A., Touryan, K., Voskanyan, S., & Yengibaryan, Y. Diamond-Like Carbon Coatings as Encapsulants for Photovoltaic Solar Cells. United States. doi:10.1109/PVSC.2005.1488389.
Pern, F. J., Panosyan, Zh., Gippius, A. A., Kontsevoy, J. A., Touryan, K., Voskanyan, S., and Yengibaryan, Y. Tue . "Diamond-Like Carbon Coatings as Encapsulants for Photovoltaic Solar Cells". United States. doi:10.1109/PVSC.2005.1488389. https://www.osti.gov/servlets/purl/15016452.
@article{osti_15016452,
title = {Diamond-Like Carbon Coatings as Encapsulants for Photovoltaic Solar Cells},
author = {Pern, F. J. and Panosyan, Zh. and Gippius, A. A. and Kontsevoy, J. A. and Touryan, K. and Voskanyan, S. and Yengibaryan, Y.},
abstractNote = {High-quality single-layer and bilayer diamond-like carbon (DLC) thin films are fabricated by two technologies, namely, ion-assisted plasma-enhanced deposition (IAPED) and electron cyclotron resonance (ECR) deposition. Deposition on various substrates, such as sapphires and solar cells, has been performed at low substrate temperatures (50 {approx} 80 C). The two deposition technologies allow good control over the growth conditions to produce DLC films with desired optical properties, thickness, and energy bandgap. The bilayer-structured DLC can be fabricated by using IAPED for the bottom layer followed by ECR for the top layer, or just by IAPED for both layers with different compositions. The DLC films have shown good spatial uniformity, density, microhardness, and adhesion strength. They exhibit excellent stability against attack by strong acids, prolonged damp-heat exposure at 85 C and 85% relative humidity, mechanical scratch, ultrasonication, and irradiation by ultraviolet (UV), protons, and electrons. When deposited on crystalline Si and GaAs solar cells in single-layer and/or bilayer structure, the DLC films not only serve as antireflection coating and protective encapsulant, but also improve the cell efficiencies.},
doi = {10.1109/PVSC.2005.1488389},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 01 00:00:00 EST 2005},
month = {Tue Feb 01 00:00:00 EST 2005}
}

Conference:
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