Photoluminescence of cadmium selenide quantum dots in polymer solutions

Merekalov, A. S.; Shandryuk, G. A.; Васильев, Р.Б.; Bykov, V. I.; Bondarenko, G. N.; Shatalova, A. M.; Otmakhova, O. A.; Talroze, R. V.

doi:10.1134/s1560090411100046

Cited by 2 publications

(2 citation statements)

References 34 publications

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“…34 TEM images together with the photoluminescence spectra of quantum dot NPs in hexane solution were used to determine their diameter that is equal to 4.2 nm. 32…”

Section: Nanoparticle Synthesismentioning

confidence: 99%

“…Neglecting the rst term in the expression for w 1 and taking into account that the interaction occurs at the surface of the NP, rw 1 r can roughly be estimated as: rw 1 r $ U n,ch V surf /v where U n,ch is the typical value of the interaction between the oleic surface shell of a NP and the particular side chains of the copolymer, V surf is the volume of the surface interaction region which may have the thickness of about 1-2 nm and v is the NP volume. Assuming that in the systems under consideration the typical interaction energy U n,ch is of the order of 10k B T and taking into account that the typical size of a NP is about 4 nm, 32 one obtains the estimate rw 1 r $ 3-10. A similar procedure reveals a slightly larger estimate for w 2 which may be 2-3 times larger than rw 1 r.…”

Section: Phase Diagrams Of Polymer Nematics Doped With Nanoparticlesmentioning

confidence: 99%

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Phase separation effects and the nematic–isotropic transition in polymer and low molecular weight liquid crystals doped with nanoparticles

et al. 2013

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This version is available at https://strathprints.strath.ac.uk/47172/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Properties of the nematic-isotropic phase transition in polymer and low molecular weight liquid crystals doped with nanoparticles have been studied both experimentally and theoretically in terms of molecular mean-field theory. The variation of the transition temperature and the transition heat with the increasing volume fraction of CdSe quantum dot nanoparticles in copolymer and low molecular weight nematics has been investigated experimentally and the data are interpreted using the results of the molecular theory which accounts for a possibility of phase separation when the system undergoes the nematic-isotropic transition. The theory predicts that the nematic and isotropic phases with different concentrations of nanoparticles may coexist over a broad temperature range, but only if the nanoparticle volume fraction exceeds a certain threshold value which depends on the material parameters. Such unusual phase separation effects are determined by the strong interaction between nanoparticles and mesogenic groups and between nanoparticles themselves.

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“…34 TEM images together with the photoluminescence spectra of quantum dot NPs in hexane solution were used to determine their diameter that is equal to 4.2 nm. 32…”

Section: Nanoparticle Synthesismentioning

confidence: 99%

Section: Phase Diagrams Of Polymer Nematics Doped With Nanoparticlesmentioning

confidence: 99%

Phase separation effects and the nematic–isotropic transition in polymer and low molecular weight liquid crystals doped with nanoparticles

et al. 2013

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Enhancement of Optical Efficiency in White OLED Display Using the Patterned Photoresist Film Dispersed With Quantum Dot Nanocrystals

Kim

Shin

Hong

et al. 2016

J. Display Technol.

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QD-OLED device performance is unsatisfactory nowadays, due to the limited efficiency of blue OLED material as well as the low efficient converting rate of QD material. Here we proposed a novel structure of QD-OLED, using white OLED as the excitation. The device shows higher optical efficiency compared with QD-OLED with Blue OLED as excitation. In addition, a 6.6 inch green QD-OLED was demostrated with the proposed structure.

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Photoluminescence of cadmium selenide quantum dots in polymer solutions

Cited by 2 publications

References 34 publications

Phase separation effects and the nematic–isotropic transition in polymer and low molecular weight liquid crystals doped with nanoparticles

Phase separation effects and the nematic–isotropic transition in polymer and low molecular weight liquid crystals doped with nanoparticles

Enhancement of Optical Efficiency in White OLED Display Using the Patterned Photoresist Film Dispersed With Quantum Dot Nanocrystals

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