Quantum and conversion efficiency calculation of AlGaAs/GaAs multiple quantum well solar cells

The quantum well solar cell (QWSC) is a novel device that has been proposed by Barnham and co‐workers at Imperial College London. In this work, the quantum efficiency for AlGaAs/GaAs QWSC has been calculated and compared with available data from the group at Imperial College London. Quantum efficien...

Full description

Saved in:
Bibliographic Details
Published in:Physica Status Solidi (b) 2005-07, Vol.242 (9), p.1842-1845
Main Authors: Rimada, J. C., Hernandez, L., Connolly, J. P., Barnham, K. W. J.
Format: Article
Language:English
Subjects:
68.65.Fg
73.21.Fg
84.60.Jt
85.30.De
85.35.Be
Applied sciences
Energy
Exact sciences and technology
Natural energy
Photovoltaic conversion
Physics
Solar cells. Photoelectrochemical cells
Solar energy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The quantum well solar cell (QWSC) is a novel device that has been proposed by Barnham and co‐workers at Imperial College London. In this work, the quantum efficiency for AlGaAs/GaAs QWSC has been calculated and compared with available data from the group at Imperial College London. Quantum efficiency calculations will be presented and compared with experimental data for several AlGaAs/GaAs QWSC, obtaining good agreement. The photocurrent then is calculated from the quantum efficiency calculations and included in the J(V) relation to optimize the efficiency of AlGaAs/GaAs QWSC. It also shows that for a range of quantum well widths and barrier bandgaps the conversion efficiencies of the quantum well solar cell are higher than the corresponding homogeneous p–i–n solar cell. Our results give a broad representation of quantum well solar cell operation, and provide a profitable guide for designing and interpreting the performance characteristics of AlGaAs/GaAs QWSCs. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.200461764