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Open AccessArticle

Photophysical Properties of Multilayer Graphene–Quantum Dots Hybrid Structures

1
School of Photonics, ITMO University, 197101 St. Petersburg, Russia
2
Center for Semiconductor Components, State University of Campinas (Unicamp), Campinas 13083-970, Brazil
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 714; https://doi.org/10.3390/nano10040714
Received: 9 March 2020 / Revised: 5 April 2020 / Accepted: 7 April 2020 / Published: 9 April 2020
(This article belongs to the Special Issue Electronic and Optical Properties of Nanostructures)
Photoelectrical and photoluminescent properties of multilayer graphene (MLG)–quantum dots (QD) hybrid structures have been studied. It has been shown that the average rate of transfer from QDs to the MLG can be estimated via photoinduced processes on the QDs’ surfaces. A monolayer of CdSe QDs can double the photoresponse amplitude of multilayer graphene, without influencing its characteristic photoresponse time. It has been found that efficient charge or energy transfer from QDs to MLG with a rate higher than 3 × 108 s−1 strongly inhibits photoinduced processes on the QD surfaces and provides photostability for QD-based structures. View Full-Text
Keywords: multilayered graphene; CdSe–ZnS quantum dots; hybrid structures; photophysical properties; photoelectrical properties; photoactivation multilayered graphene; CdSe–ZnS quantum dots; hybrid structures; photophysical properties; photoelectrical properties; photoactivation
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MDPI and ACS Style

Reznik, I.; Zlatov, A.; Baranov, M.; Zakoldaev, R.; Veniaminov, A.; Moshkalev, S.; Orlova, A. Photophysical Properties of Multilayer Graphene–Quantum Dots Hybrid Structures. Nanomaterials 2020, 10, 714.

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