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Aluminum Nanostructures Enhanced Optical Absorption in Thinfilm Silicon Solar Cells

Author(s):

Y Premkumar Singh*, Amit Jain and Avinashi Kapoor   Pages 1 - 6 ( 6 )

Abstract:


Background: Plasmonic light trapping in thin-film crystalline silicon solar cells is numerically investigated using finite-difference time-domain simulations. Enhancement of optical absorption due to the excitation of localized surface plasmons in a periodic arrangement of aluminum nanostructures is analyzed. Method: Broadband photocurrent enhancement in a 1 μm thick silicon film can be observed over the 500-800 nm spectral range of interest. Conclusion: Photocurrent density under Air Mass 1.5 global solar irradiation has been found to be enhanced by up to 40% using aluminum nanostructures with 300 nm width and 100 nm thick. The present work offers a cost-effective plasmonic material for solar cell applications.

Keywords:

Thin-film solar cells, Light trapping, Surface plasmon, Optical absorption, Photocurrent density, Aluminum nanostructure

Affiliation:

Department of Physics, Motilal Nehru College, University of Delhi, New Delhi, Department of Electronics, Rajdhani College, University of Delhi, New Delhi, Department of Electronic Science, South Campus, University of Delhi, New Delhi



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