Open AccessDesigning spectrum-splitting dichroic filters to optimize current-matched photovoltaics
Author(s) -
Alexander Miles,
Byron Cocilovo,
Brian Wheelwright,
Wei Pan,
Doug Tweet,
Robert A. Norwood
Publication year - 2016
Publication title -
applied optics
Language(s) - Uncategorized
Resource type - Journals
ISSN - 0003-6935
DOI - 10.1364/ao.55.001849
Subject(s) - dichroic glass , optics , dichroic filter , photovoltaic system , materials science , photovoltaics , optoelectronics , tilt (camera) , current (fluid) , substrate (aquarium) , physics , wavelength , electrical engineering , mechanical engineering , oceanography , geology , engineering , thermodynamics
We have developed an approach for designing a dichroic coating to optimize performance of current-matched multijunction photovoltaic cells while diverting unused light. By matching the spectral responses of the photovoltaic cells and current matching them, substantial improvement to system efficiencies is shown to be possible. A design for use in a concentrating hybrid solar collector was produced by this approach, and is presented. Materials selection, design methodology, and tilt behavior on a curved substrate are discussed.