Enhanced photocurrent in thin-film GaAs solar cells with embedded Al nanoparticles.

Authors :: Singh, Gurjit
Sekhon, Jagmeet Singh
Verma, S. S.
Source :: Energy Sources Part A: Recovery, Utilization & Environmental Effects; 2020, Vol. 42 Issue 7, p815-823, 9p
Publication Year :: 2020
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 Ta<subscript>2</subscript>O<subscript>5</subscript>-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 Ta<subscript>2</subscript>O<subscript>5</subscript> result a maximum spectral absorption rate of 0.95 that leads to a photocurrent of 30.43 mA/cm<superscript>2</superscript>. [ABSTRACT FROM AUTHOR]

Subjects :: SILICON solar cells
SOLAR cells
DYE-sensitized solar cells
ANTIREFLECTIVE coatings
PHOTOCATHODES
FINITE difference time domain method
AUDITING standards
SURFACE plasmon resonance

Language :: English
ISSN :: 15567036
Volume :: 42
Issue :: 7
Database :: Complementary Index
Journal :: Energy Sources Part A: Recovery, Utilization & Environmental Effects
Publication Type :: Academic Journal
Accession number :: 141601058
Full Text :: https://doi.org/10.1080/15567036.2019.1587082

Full Text Access

Tools