Journal
OPTICS EXPRESS
Volume 20, Issue 7, Pages 7445-7453Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.007445
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Funding
- National Science Council of Taiwan [NSC-100-2221-E-006-043-MY2, NSC-100-2221-E-230-008-]
- Research Center for Energy Technology and Strategy, National Cheng Kung University
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The purpose of this study is to reduce the glass substrate reflectivity over a wide spectral range (400-1200nm) without having high reflectivity in the near-infrared region. After making porous SiO2/MgF2 double-layer antireflection (DLAR) thin film structure, the superstrate-type silicon-based tandem cells are added. In comparison to having only silicon-based tandem solar cells, the short-circuit current density has improved by 6.82% when porous SiO2/MgF2 DLAR thin film is applied to silicon-based tandem solar cells. This study has demonstrated that porous SiO2/MgF2 DLAR thin film structure provides antireflection properties over a broad spectral range (400-1200nm) without having high reflectivity at near-infrared wavelengths. (C) 2012 Optical Society of America
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