Core and Shell Contributions to the Phonon Spectra of CdTe/CdS Quantum Dots

Autor: Volodymyr Dzhagan, Nazar Mazur, Olga Kapush, Oleksandr Selyshchev, Anatolii Karnaukhov, Oleg A. Yeshchenko, Mykola I. Danylenko, Volodymyr Yukhymchuk, Dietrich R. T. Zahn

Publikováno v: Nanomaterials, Vol 13, Iss 5, p 921 (2023)

The parameters of the shell and interface in semiconductor core/shell nanocrystals (NCs) are determinant for their optical properties and charge transfer but are challenging to be studied. Raman spectroscopy was shown earlier to be a suitable informa

Externí odkaz: https://doaj.org/article/37b587cdeb9c4240b0e352c54c88e52c

Enhancement of Raman Scattering and Exciton/Trion Photoluminescence of Monolayer and Few-Layer MoS2 by Ag Nanoprisms and Nanoparticles: Shape and Size Effects

Autor: Matteo Bosi, Baikui Li, Luca Seravalli, Ran Qiu, Oleg A. Yeshchenko, Sergii Golovynskyi, Bin Xue, Dan Dong, Yan Lin, Junle Qu, Iqra Irfan

Publikováno v: Journal of physical chemistry. C 125 (2021): 4119–4132. doi:10.1021/acs.jpcc.0c11421
info:cnr-pdr/source/autori:Irfan I.; Golovynskyi S.; Bosi M.; Seravalli L.; Yeshchenko O.A.; Xue B.; Dong D.; Lin Y.; Qiu R.; Li B.; Qu J./titolo:Enhancement of Raman Scattering and Exciton%2FTrion Photoluminescence of Monolayer and Few-Layer MoS2 by Ag Nanoprisms and Nanoparticles: Shape and Size Effects/doi:10.1021%2Facs.jpcc.0c11421/rivista:Journal of physical chemistry. C/anno:2021/pagina_da:4119/pagina_a:4132/intervallo_pagine:4119–4132/volume:125

The metal nanoparticle size and shape impact the plasmonic enhancement of Raman and photoluminescence (PL) spectra of monolayer and few-layer MoS2 decorated with them. The plasmonic enhancement is investigated for Ag nanotriangles (NTs or nanoprisms)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90425e37bb95793d9337c4b51782d0ef
https://doi.org/10.1021/acs.jpcc.0c11421

Temperature Driven Plasmon-Exciton Coupling in Thermoresponsive Dextran-Graft-PNIPAM/Au Nanoparticle/CdTe Quantum Dots Hybrid Nanosystem

Autor: Volodymyr Dzhagan, Pavlo S. Khort, Oleg A. Yeshchenko, Vadym M. Prokopets, Nataliya Kutsevol, O.A. Kapush

Publikováno v: Plasmonics. 16:1137-1150

The temperature-driven plasmon-exciton coupling in thermoresponsive dextran-graft-PNIPAM/Au nanoparticle/CdTe quantum dot (D-g-PNIPAM/Au NPs/CdTe QDs) hybrid nanosystem was studied. A significant (0.84 eV) splitting of the absorption peak was observe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::271380cbcd03c08bbeb2e440ed758d3c
https://doi.org/10.1007/s11468-021-01378-w

Angle and polarization dependent coupling of surface plasmon and gap modes in plasmonic gap metasurfaces

Autor: Oleg A. Yeshchenko, Anastasiya V. Tomchuk, Viktor V. Kozachenko, Randal J. Knize, Michael Haftel, Anatoliy O. Pinchuk

Publikováno v: Optical Materials. 132:112884

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cca221f45dbf036308fb7dcda6bcf03
https://doi.org/10.1016/j.optmat.2022.112884

Plasmonic Nanocavity Metasurface Based on Laser-Structured Silver Surface and Silver Nanoprisms for the Enhancement of Adenosine Nucleotide Photoluminescence

Autor: Sergii Golovynskyi, Igor Dmitruk, Anastasiya V. Tomchuk, Vladislav Yu. Kudrya, Junle Qu, Bin Xue, N. I. Berezovska, P. O. Tesel’ko, Oleg A. Yeshchenko

Publikováno v: ACS Applied Nano Materials. 2:7152-7161

A reliable photoluminescence (PL) spectroscopy and imaging of biomolecules at room temperature is a challenging and important problem of biophysics, biochemistry, and molecular genetics. A unique effect of strong plasmonic enhancement of the PL by me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8da90805ac9619b57413512c8c0b2b65
https://doi.org/10.1021/acsanm.9b01673