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Optoelectronic characterization of carrier extraction in a hot carrier photovoltaic cell structure

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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/2040-8978/18/7/074003

Authors

More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author


Publisher:
IOP Publishing
Journal:
Journal of Optics More from this journal
Volume:
18
Issue:
7
Pages:
074003-074003
Publication date:
2016-05-24
Acceptance date:
2016-03-15
DOI:
EISSN:
2040-8986
ISSN:
2040-8978


Keywords:
Pubs id:
pubs:624967
UUID:
uuid:3c655b4f-1483-4e6d-9baf-c01d45590b63
Local pid:
pubs:624967
Source identifiers:
624967
Deposit date:
2016-05-31
ARK identifier:

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