Photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots by plasmonic nanostructures

O. Kulakovich; L. Gurinovich; Hui Li; A. Ramanenka; L. Trotsiuk; A. Muravitskaya; Jing Wei; Hongbo Li; N. Matveevskaya; D. V. Guzatov; S. Gaponenko

doi:10.1088/1361-6528/abbdde

Photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots by plasmonic nanostructures

O. Kulakovich^*, L. Gurinovich, Hui Li, A. Ramanenka, L. Trotsiuk, A. Muravitskaya, Jing Wei, Hongbo Li, N. Matveevskaya, D. V. Guzatov, S. Gaponenko

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The effect of gold and silver plasmonic films on the photoluminescence and photostability of InP/ZnSe/ZnSeS/ZnS nanocrystals (quantum dots) is reported. Colloidal gold films promote the photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots (more durable emission properties in the presence of metal nanostructures) through reducing exciton lifetime. In contrast, silver decreases the photostability of InP/ZnSe/ZnSeS/ZnS quantum dots without changing the photoluminescence intensity and kinetics. By adjusting the excitation wavelength closer to the extinction band of gold nanoparticles a 1.8-fold enhancement of luminescence intensity has been obtained using a polyelectrolyte spacer between the metal and InP/ZnSe/ZnSeS/ZnS nanoparticles. Thus, plasmonics offers essential practical improvement of light emitters in terms of their durable luminescent properties upon prolonged optical excitation without losses in luminescence efficiency or even along with increased efficiency.

Original language	English
Article number	035204
Journal	Nanotechnology
Volume	32
Issue number	3
DOIs	https://doi.org/10.1088/1361-6528/abbdde
Publication status	Published - 15 Jan 2021

Keywords

Gold film
Indium phosphide
Photoluminescence
Photostability
Plasmonic
Quantum dots

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title = "Photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots by plasmonic nanostructures",

abstract = "The effect of gold and silver plasmonic films on the photoluminescence and photostability of InP/ZnSe/ZnSeS/ZnS nanocrystals (quantum dots) is reported. Colloidal gold films promote the photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots (more durable emission properties in the presence of metal nanostructures) through reducing exciton lifetime. In contrast, silver decreases the photostability of InP/ZnSe/ZnSeS/ZnS quantum dots without changing the photoluminescence intensity and kinetics. By adjusting the excitation wavelength closer to the extinction band of gold nanoparticles a 1.8-fold enhancement of luminescence intensity has been obtained using a polyelectrolyte spacer between the metal and InP/ZnSe/ZnSeS/ZnS nanoparticles. Thus, plasmonics offers essential practical improvement of light emitters in terms of their durable luminescent properties upon prolonged optical excitation without losses in luminescence efficiency or even along with increased efficiency.",

keywords = "Gold film, Indium phosphide, Photoluminescence, Photostability, Plasmonic, Quantum dots",

author = "O. Kulakovich and L. Gurinovich and Hui Li and A. Ramanenka and L. Trotsiuk and A. Muravitskaya and Jing Wei and Hongbo Li and N. Matveevskaya and Guzatov, {D. V.} and S. Gaponenko",

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doi = "10.1088/1361-6528/abbdde",

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AU - Kulakovich, O.

AU - Gurinovich, L.

AU - Li, Hui

AU - Ramanenka, A.

AU - Trotsiuk, L.

AU - Muravitskaya, A.

AU - Wei, Jing

AU - Li, Hongbo

AU - Matveevskaya, N.

AU - Guzatov, D. V.

AU - Gaponenko, S.

PY - 2021/1/15

Y1 - 2021/1/15

N2 - The effect of gold and silver plasmonic films on the photoluminescence and photostability of InP/ZnSe/ZnSeS/ZnS nanocrystals (quantum dots) is reported. Colloidal gold films promote the photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots (more durable emission properties in the presence of metal nanostructures) through reducing exciton lifetime. In contrast, silver decreases the photostability of InP/ZnSe/ZnSeS/ZnS quantum dots without changing the photoluminescence intensity and kinetics. By adjusting the excitation wavelength closer to the extinction band of gold nanoparticles a 1.8-fold enhancement of luminescence intensity has been obtained using a polyelectrolyte spacer between the metal and InP/ZnSe/ZnSeS/ZnS nanoparticles. Thus, plasmonics offers essential practical improvement of light emitters in terms of their durable luminescent properties upon prolonged optical excitation without losses in luminescence efficiency or even along with increased efficiency.

AB - The effect of gold and silver plasmonic films on the photoluminescence and photostability of InP/ZnSe/ZnSeS/ZnS nanocrystals (quantum dots) is reported. Colloidal gold films promote the photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots (more durable emission properties in the presence of metal nanostructures) through reducing exciton lifetime. In contrast, silver decreases the photostability of InP/ZnSe/ZnSeS/ZnS quantum dots without changing the photoluminescence intensity and kinetics. By adjusting the excitation wavelength closer to the extinction band of gold nanoparticles a 1.8-fold enhancement of luminescence intensity has been obtained using a polyelectrolyte spacer between the metal and InP/ZnSe/ZnSeS/ZnS nanoparticles. Thus, plasmonics offers essential practical improvement of light emitters in terms of their durable luminescent properties upon prolonged optical excitation without losses in luminescence efficiency or even along with increased efficiency.

KW - Gold film

KW - Indium phosphide

KW - Photoluminescence

KW - Photostability

KW - Plasmonic

KW - Quantum dots

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DO - 10.1088/1361-6528/abbdde

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C2 - 33007765

AN - SCOPUS:85094221690

SN - 0957-4484

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JO - Nanotechnology

JF - Nanotechnology

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M1 - 035204

ER -

Photostability enhancement of InP/ZnSe/ZnSeS/ZnS quantum dots by plasmonic nanostructures

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Keywords

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