Open AccessAbsorbing one-dimensional planar photonic crystal for amorphous silicon solar cell
Author(s) -
Ounsi El Daïf,
Emmanuel Drouard,
Guillaume Gomard,
A. Kaminski,
Alain Fave,
M. Lemiti,
Seung-Ho Ahn,
Sihan Kim,
Pere Roca i Cabarrocas,
Heonsu Jeon,
Christian Seassal
Publication year - 2010
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.18.00a293
Subject(s) - materials science , photonic crystal , optics , optoelectronics , amorphous silicon , silicon , planar , absorption (acoustics) , amorphous solid , etching (microfabrication) , laser , layer (electronics) , solar cell , photovoltaic system , monocrystalline silicon , crystalline silicon , nanotechnology , ecology , chemistry , physics , computer graphics (images) , organic chemistry , computer science , composite material , biology
We report on the absorption of a 100nm thick hydrogenated amorphous silicon layer patterned as a planar photonic crystal (PPC), using laser holography and reactive ion etching. Compared to an unpatterned layer, electromagnetic simulation and optical measurements both show a 50% increase of the absorption over the 0.38-0.75micron spectral range, in the case of a one-dimensional PPC. Such absorbing photonic crystals, combined with transparent and conductive layers, may be at the basis of new photovoltaic solar cells.