AN ENHANCEMENT OF PBS QUANTUM DOT PHOTOLUMINESCENCE BY LSPR IN SEMICONDUCTOR NANOCRYSTALS

1 LITVIN Aleksandr
Co-authors:
1 BABAEV Anton 1 DUBAVIK Aleksey 1 PARFENOV Petr 1 USHAKOVA Elena 1 FEDOROV Anatoly 1 BARANOV Alexander
Institution:
1 St. Petersburg National Research University of Information Technologies, Mechanics and Optics, St. Petersburg, Russia
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
30-35
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
27 views / 15 downloads
Abstract

In the present study we analyzed an influence of adding of Cu2-xSe nanocrystals (NCs) to PbS quantum dots (QDs) prepared in colloidal solution, in organic matrices and on glass substrates. We found that photoluminescence (PL) signal from QDs is considerably affected by Cu2-xSe NCs, which results in slowdown of PL decay and change of PL intensity. The behavior of PL signal drastically depends on the surrounding matrix and QD-NC separation distance. Despite Cu2-xSe NCs provide an enhancement of PbS QDs PL, they also caused and acceleration of QD degradation when QDs and NCs interact.

Keywords: Photoluminescence, quantum dots, PbS, LSPR, doped semiconductor nanocrystals
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