<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This work presents a systematic study of the effect of ZnSe nanocrystals (NCs) concentration on the optical and luminescent properties of poly N-vinylcarbazole (PVK) polymer nanocomposites. The ZnSe nanocrystals were synthesized by a simple coprecipitation chemical route, while PVK:ZnSe nanocomposite films were fabricated using the spin coating technique. The samples were characterized by XRD, TEM, SEM, UV-Vis and fluorescence techniques. The X-ray diffraction and TEM studies confirmed the particle size, microstructure and spherical shape of the synthesized nanocrystals. The ZnSe nanocrystals in PVK caused a decrease in optical gap with increasing concentration of nanocrystals. The emission spectra exhibited augmentation in intensity up to 70 wt.% of nanoparticles while further addition resulted in a decrease in luminescence. The structure-property relationships obtained for the present system are important for developing low cost illumination devices.</p></abstract>

This work presents a systematic study of the effect of ZnSe nanocrystals (NCs) concentration on the optical and luminescent properties of poly N-vinylcarbazole (PVK) polymer nanocomposites. The ZnSe nanocrystals were synthesized by a simple coprecipitation chemical route, while PVK:ZnSe nanocomposite films were fabricated using the spin coating technique. The samples were characterized by XRD, TEM, SEM, UV-Vis and fluorescence techniques. The X-ray diffraction and TEM studies confirmed the particle size, microstructure and spherical shape of the synthesized nanocrystals. The ZnSe nanocrystals in PVK caused a decrease in optical gap with increasing concentration of nanocrystals. The emission spectra exhibited augmentation in intensity up to 70 wt.% of nanoparticles while further addition resulted in a decrease in luminescence. The structure-property relationships obtained for the present system are important for developing low cost illumination devices.

Effect of nanocrystals concentration on optical and luminescent properties of PVK:ZnSe nanocomposites

Institute of Chemical Engineering and Technology

Center for Nanoscience & Nanotechnology, UIEAST

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This work presents a systematic study of the effect of ZnSe nanocrystals (NCs) concentration on the optical and luminescent properties of poly N-vinylcarbazole...

Effect of nanocrystals concentration on optical and luminescent properties of PVK:ZnSe nanocomposites

Publié en ligne: 02 nov. 2018

Pages: 494 - 500

Reçu: 07 oct. 2017

Accepté: 21 mai 2018

DOI: https://doi.org/10.2478/msp-2018-0063

Mots clés
nanocrystals, PVK:ZnSe nanocomposites, XRD, optical and fluorescence properties

© 2018 Kanupriya Sharma et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Effect of nanocrystals concentration on optical and luminescent properties of PVK:ZnSe nanocomposites

Publié en ligne: 02 nov. 2018

Pages: 494 - 500

Reçu: 07 oct. 2017

Accepté: 21 mai 2018

DOI: https://doi.org/10.2478/msp-2018-0063

Mots clésnanocrystals, PVK:ZnSe nanocomposites, XRD, optical and fluorescence properties

© 2018 Kanupriya Sharma et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
nanocrystals, PVK:ZnSe nanocomposites, XRD, optical and fluorescence properties