1. Four-fold MQWs absorption enhancement in a 430 nm thick InGaAs/GaAsP MQWs solar cell
- Author
-
Ryo Tamaki, Andrea Cattoni, Masakazu Sugiyama, Nicolas Vandamme, Christophe Dupuis, N. Bardou, Benoit Behaghel, Kentaroh Watanabe, Stéphane Collin, Yoshitaka Okada, Hassanet Sodabanlu, and J.-F. Guillemoles
- Subjects
Materials science ,business.industry ,Multiple quantum ,Epitaxy ,law.invention ,Optics ,law ,Light management ,Solar cell ,Optoelectronics ,Quantum efficiency ,Plasmonic solar cell ,Absorption (electromagnetic radiation) ,business ,Excitation - Abstract
We study light management in a 430 nm-thick GaAs p-i-n single junction solar cell with 10 InGaAs/GaAsP multiple quantum wells (MQWs). The epitaxial layer transfer on a gold mirror improves light absorption and increases the quantum efficiency in the MQW region by a factor of 4 through the excitation of Fabry-Perot resonances. We show a good agreement with optical simulation and achieve around 9% efficiency. This promising result can be further improved by anti-reflection layers and additional light-trapping solutions.
- Published
- 2014
- Full Text
- View/download PDF