NDLI: Photoluminescence Quenching in Quantum Emitter, Metallic Nanoparticle, and Graphene Hybrids

Content Provider	Springer Nature Link
Author	Brzozowski, Marek J. Singh, Mahi R.
Copyright Year	2016
Abstract	We have developed a theory for photoluminescence quenching and plasmonic properties in hybrid nanosystems made from three nanosystems such as a quantum emitters, metallic nanoparticles, and graphene. The metallic nanoparticles and graphene have surface plasmons which couple with probe photons and create surface plasmon polaritons. Therefore, the excitons in the quantum emitters interact with surface plasmon polaritons via the dipole-dipole interaction. Due to this interaction, energy is exchanged between the nanosystems. The second quantized formulation and the quantum density matrix method have been used to calculate photoluminescence and the radiative and non-radiative decay processes in the presence of dipole-dipole interaction. We have compared our theory with experiments of two and three nanosystems, and a good agreement between theory and experiments is achieved. It has been found that the photoluminescence quenching in hybrid systems not only occurs through the direct non-radiative energy transfer from the quantum emitter to the metal nanoparticle and to graphene but also occurs through the indirect non-radiative energy transfer from quantum emitter to the metal nanoparticle via graphene and from the quantum emitter to graphene via metal nanoparticle. These are interesting findings and they can be used to fabricate nanoswitches and nanosensors for medical applications.
Starting Page	1021
Ending Page	1028
Page Count	8
File Format	PDF
ISSN	15571955
Journal	Plasmonics
Volume Number	12
Issue Number	4
e-ISSN	15571963
Language	English
Publisher	Springer US
Publisher Date	2016-09-05
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Photoluminescence quenching Surface plasmon polaritons Density matrix method Non-radiative energy transfer Graphene Quantum dots Quantum emitters Biotechnology Nanotechnology Biological and Medical Physics, Biophysics Biochemistry
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Biochemistry Biophysics Biotechnology

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