Optics Express 2012-03-26

Porous SiO₂/MgF₂ broadband antireflection coatings for superstrate-type silicon-based tandem cells.

Na-Fu Wang, Ting-Wei Kuo, Yu-Zen Tsai, Shi-Xiong Lin, Pin-Kun Hung, Chiung-Lin Lin, Mau-Phon Houng

Index: Opt. Express 20(7) , 7445-53, (2012)

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Abstract

The purpose of this study is to reduce the glass substrate reflectivity over a wide spectral range (400-1200 nm) 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 (400-1200 nm) without having high reflectivity at near-infrared wavelengths.

Related Compounds

  • Magnesium fluoride

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