Open AccessAntireflective coatings for multijunction solar cells under wide-angle ray bundles
Author(s) -
Marta Victoria,
César Domínguez,
Ignacio Antón,
Gabriel Sala
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.20.008136
Subject(s) - anti reflective coating , optics , materials science , solar cell , solar cell efficiency , characterization (materials science) , arc (geometry) , optoelectronics , coating , physics , nanotechnology , geometry , mathematics
Two important aspects must be considered when optimizing antireflection coatings (ARCs) for multijunction solar cells to be used in concentrators: the angular light distribution over the cell created by the particular concentration system and the wide spectral bandwidth the solar cell is sensitive to. In this article, a numerical optimization procedure and its results are presented. The potential efficiency enhancement by means of ARC optimization is calculated for several concentrating PV systems. In addition, two methods for ARCs direct characterization are presented. The results of these show that real ARCs slightly underperform theoretical predictions.