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Dark exciton signatures in time-resolved photoluminescence of single quantum dots

Abstract:

Time-resolved photoluminescence of single charge tuneable quantum dots allows us to probe the differences in recombination dynamics between neutral and negatively charged excitons. We find that the luminescence decay from a neutral exciton contains a second lifetime component of several nanoseconds that is not present in the luminescence from singly or doubly charged excitons. We attribute the slowly decaying component to excitation cycles in which the initial exciton formed in the dot is dar...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Volume:
789
Pages:
177-182
Host title:
QUANTUM DOTS, NANOPARTICLES AND NANOWIRES
Publication date:
2004-01-01
ISSN:
0272-9172
Source identifiers:
135247
ISBN:
155899727X
Pubs id:
pubs:135247
UUID:
uuid:82a56db5-c73e-444f-95df-925b4e0a5381
Local pid:
pubs:135247
Deposit date:
2014-08-17

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