Open AccessPorous SiO_2/MgF_2 broadband antireflection coatings for superstrate-type silicon-based tandem cells
Author(s) -
Na Fu Wang,
Ting Wei Kuo,
YuZen Tsai,
Shi Xiong Lin,
Pin Kun Hung,
Chiung Lin Lin,
Mau Phon Houng
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.007445
Subject(s) - materials science , silicon , tandem , porous silicon , thin film , optoelectronics , substrate (aquarium) , optics , layer (electronics) , infrared , nanotechnology , composite material , oceanography , physics , geology
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.