1. Enhanced photocurrent in thin-film GaAs solar cells with embedded Al nanoparticles.
- Author
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Singh, Gurjit, Sekhon, Jagmeet Singh, and Verma, S. S.
- Subjects
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SILICON solar cells , *SOLAR cells , *DYE-sensitized solar cells , *ANTIREFLECTIVE coatings , *PHOTOCATHODES , *FINITE difference time domain method , *AUDITING standards , *SURFACE plasmon resonance - Abstract
It is believed that the effectual scattering by earth-abundant Al nanoparticles in combination with photoelectric conversion-efficient GaAs material may help for cost-effective solar cells. Al nanoparticles of various radii embedded at different depths in a Ta2O5-coated GaAs semiconductor have been studied by finite-difference time-domain method for their influence towards spectral absorption rate and photocurrent in GaAs solar cells. The calculated spectral absorption rate and photocurrent show a significant enhancement at the optimal depth for a particular radius of Al nanoparticles, which is explained on the basis of surface plasmon resonance. Al nanoparticles of radius 80 nm embedded just below the antireflection layer of Ta2O5 result a maximum spectral absorption rate of 0.95 that leads to a photocurrent of 30.43 mA/cm2. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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