Optoelectronic characterization of carrier extraction in a hot carrier photovoltaic cell structure
File(s)
Author(s)
Type
Journal Article
Abstract
A hot carrier photovoltaic cell requires extraction of electrons on a timescale faster than they can lose energy to the lattice. We optically and optoelectronically characterize two resonant tunneling structures, showing their compatability with hot carrier photovoltaic operation, demonstrating structural and carrier extraction properties necessary for such a device. In particular we use time resolved and temperature dependent photoluminescence to determine extraction timescales and energy levels in the structures and demonstrate fast carrier extraction by tunneling. We also show that such devices are capable of extracting photo-generated electrons at high carrier densities, with an open circuit voltage in excess of 1 V.
Date Issued
2016-05-24
Date Acceptance
2016-03-15
Citation
Journal of Optics, 2016, 18 (7)
ISSN
2040-8986
Publisher
IOP Publishing
Journal / Book Title
Journal of Optics
Volume
18
Issue
7
Copyright Statement
© 2016 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Optics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://dx.doi.org/10.1088/2040-8978/18/7/074003
Sponsor
Royal Commission for the Exhibition of 1851
Grant Number
Royal Commission for the Exhibition of 1851
Subjects
0205 Optical Physics
0906 Electrical And Electronic Engineering
Publication Status
Published
Article Number
074003