A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles

Vladimir K. Popov; Viktor N. Bagratashvili; Larisa I. Krotova; Aleksei O. Rybaltovskii; David C. Smith; Peter S. Timashev; Jixin Yang; Yurii S. Zavorotnii; Steven M. Howdle

doi:10.1039/c1gc15553a

A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles

Vladimir K. Popov, Viktor N. Bagratashvili, Larisa I. Krotova, Aleksei O. Rybaltovskii, David C. Smith, Peter S. Timashev, Jixin Yang, Yurii S. Zavorotnii, Steven M. Howdle

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

19 Scopus citations

Abstract

A green and efficient synthetic approach has been developed using supercritical carbon dioxide as a transport medium for the diffusion embedding of core shell CdSe/CdS quantum dots (QD) into polytetrafluorethylene (PTFE) microparticles, leading to matrix immobilisation of QD in PTFE. Transmission electron microscopy and photoluminescence spectroscopy probes show that the products are fine dispersive photoluminescent nanocomposites with QD being homogeneously isolated throughout the polymer microparticle volume. Up to 3 × 10⁵ QD can be embedded into a single 1 μm PTFE microparticle by this technique without degradation of the microparticulate structure. A further photoluminescence study of thermally heated and laser irradiated CdSe/CdS/PTFE microparticles reveals excellent optical performance and stability over the 20–80 °C temperature range.

Original language	English
Pages (from-to)	2696-2700
Number of pages	5
Journal	Green Chemistry
Volume	13
Issue number	10
DOIs	https://doi.org/10.1039/c1gc15553a
State	Published - Jan 10 2011
Externally published	Yes

Access to Document

10.1039/c1gc15553a

Cite this

@article{d161617aaf5f489fb34363833f75b9d5,

title = "A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles",

abstract = "A green and efficient synthetic approach has been developed using supercritical carbon dioxide as a transport medium for the diffusion embedding of core shell CdSe/CdS quantum dots (QD) into polytetrafluorethylene (PTFE) microparticles, leading to matrix immobilisation of QD in PTFE. Transmission electron microscopy and photoluminescence spectroscopy probes show that the products are fine dispersive photoluminescent nanocomposites with QD being homogeneously isolated throughout the polymer microparticle volume. Up to 3 × 105 QD can be embedded into a single 1 μm PTFE microparticle by this technique without degradation of the microparticulate structure. A further photoluminescence study of thermally heated and laser irradiated CdSe/CdS/PTFE microparticles reveals excellent optical performance and stability over the 20–80 °C temperature range.",

author = "Popov, {Vladimir K.} and Bagratashvili, {Viktor N.} and Krotova, {Larisa I.} and Rybaltovskii, {Aleksei O.} and Smith, {David C.} and Timashev, {Peter S.} and Jixin Yang and Zavorotnii, {Yurii S.} and Howdle, {Steven M.}",

year = "2011",

month = jan,

day = "10",

doi = "10.1039/c1gc15553a",

language = "English",

volume = "13",

pages = "2696--2700",

journal = "Green Chemistry",

issn = "1463-9262",

number = "10",

}

TY - JOUR

T1 - A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles

AU - Popov, Vladimir K.

AU - Bagratashvili, Viktor N.

AU - Krotova, Larisa I.

AU - Rybaltovskii, Aleksei O.

AU - Smith, David C.

AU - Timashev, Peter S.

AU - Yang, Jixin

AU - Zavorotnii, Yurii S.

AU - Howdle, Steven M.

PY - 2011/1/10

Y1 - 2011/1/10

N2 - A green and efficient synthetic approach has been developed using supercritical carbon dioxide as a transport medium for the diffusion embedding of core shell CdSe/CdS quantum dots (QD) into polytetrafluorethylene (PTFE) microparticles, leading to matrix immobilisation of QD in PTFE. Transmission electron microscopy and photoluminescence spectroscopy probes show that the products are fine dispersive photoluminescent nanocomposites with QD being homogeneously isolated throughout the polymer microparticle volume. Up to 3 × 105 QD can be embedded into a single 1 μm PTFE microparticle by this technique without degradation of the microparticulate structure. A further photoluminescence study of thermally heated and laser irradiated CdSe/CdS/PTFE microparticles reveals excellent optical performance and stability over the 20–80 °C temperature range.

AB - A green and efficient synthetic approach has been developed using supercritical carbon dioxide as a transport medium for the diffusion embedding of core shell CdSe/CdS quantum dots (QD) into polytetrafluorethylene (PTFE) microparticles, leading to matrix immobilisation of QD in PTFE. Transmission electron microscopy and photoluminescence spectroscopy probes show that the products are fine dispersive photoluminescent nanocomposites with QD being homogeneously isolated throughout the polymer microparticle volume. Up to 3 × 105 QD can be embedded into a single 1 μm PTFE microparticle by this technique without degradation of the microparticulate structure. A further photoluminescence study of thermally heated and laser irradiated CdSe/CdS/PTFE microparticles reveals excellent optical performance and stability over the 20–80 °C temperature range.

UR - http://www.scopus.com/inward/record.url?scp=80053470596&partnerID=8YFLogxK

U2 - 10.1039/c1gc15553a

DO - 10.1039/c1gc15553a

M3 - Article

AN - SCOPUS:80053470596

SN - 1463-9262

VL - 13

SP - 2696

EP - 2700

JO - Green Chemistry

JF - Green Chemistry

IS - 10

ER -

A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles

Abstract

Access to Document

Other files and links

Fingerprint

Cite this