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Energy Transfer in a Blend of PbS QDs of Different Size

Published online by Cambridge University Press:  30 June 2015

Aleksandr Litvin ,
Peter Parfenov ,
Elena Ushakova ,
Anatoly Fedorov  and
Alexander Baranov
Aleksandr Litvin
Affiliation:
ITMO University, Saint Petersburg, Russian Federation
Peter Parfenov
Affiliation:
ITMO University, Saint Petersburg, Russian Federation
Elena Ushakova
Affiliation:
ITMO University, Saint Petersburg, Russian Federation
Anatoly Fedorov
Affiliation:
ITMO University, Saint Petersburg, Russian Federation
Alexander Baranov
Affiliation:
ITMO University, Saint Petersburg, Russian Federation
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Abstract

A photoexcitation energy transfer process in blends of PbS QDs of different size is considered. An analysis of photoluminescence kinetics shows drastic increase of acceptor decay times. In a triple blend a merger of photoluminescence decay curves recorded at different spectral regions is found. Different pathways of the energy transfer, including the transfer from the in-gap state, are considered.

Keywords

nanostructureluminescenceoptical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1787: Symposium U – The Interplay of Structure and Carrier Dynamics in Energy-Relevant Nanomaterials , 2015 , pp. 7 - 13
Copyright
Copyright © Materials Research Society 2015 

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References

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