Simulation and analysis of the angular response of 1D dielectric nanophotonic light-trapping structures in thin-film photovoltaics | Zendy

Peng Wang | Zendy; Rajesh Me | Zendy

Open Access

Simulation and analysis of the angular response of 1D dielectric nanophotonic light-trapping structures in thin-film photovoltaics

Author(s) -

Peng Wang,

Rajesh Me

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.00a545

Subject(s) - nanophotonics , optics , materials science , optoelectronics , thin film , photovoltaics , dielectric , ray , total internal reflection , grating , diffraction grating , photovoltaic system , physics , nanotechnology , ecology , biology

Nanophotonics can guide the design of novel structures for light-trapping in ultra-thin photovoltaic cells. Here, we report on the systematic study of the effect of the angle of incidence of sunlight on the performance of such structures. We also conduct a parametric study of a sinusoidal grating and demonstrate that light intensity in the active region averaged over a range of input angles from 0° to 80° can be enhanced by more than 3 times compared to the bare device. Such a broadband light-trapping nanostructure can increase the total daily energy production of a fixed (non-tracking) device by over 60%, compared to a reference device with an anti-reflection coating.

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