Current-matched improvement of triple-junction gaas-based solar cells using periodic patterns incorporated with indium nanoparticle plasmonics
Journal
Nanoscience and Nanotechnology Letters
Journal Volume
6
Journal Issue
2
Pages
153-158
Date Issued
2014
Author(s)
Abstract
This paper demonstrates an improvement in the external quantum efficiency (EQE) of the middle cell of a current-limited triple-junction GaAs-based solar cell by employing periodic patterns incorporated with random indium nanoparticles based on the effects of metallic nanoparticle plasmonics. An average EQE decrease in the top cell of 9.8% and an average EQE increase in the middle cell of +2.4% were obtained in a solar cell coated with periodic patterns of indium nanoparticles on a 50-nm-thick TiO2 space layer, compared with the solar cell coated only with a 50-nm-thick TiO2 space layer. The photocurrent generated in the middle cell increased by approximately 3.4% (from 11.02 to 11.39 mA/cm2-. Thus, a short-circuit current enhancement of 3.32% (from 3.31 to 3.42 mA) and a conversion-efficiency enhancement of 2.95% (from 23.7% to 24.4%) were achieved under AM1.5 G solar simulation. Copyright © 2014 American Scientific Publishers All rights reserved.
SDGs
Type
journal article