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

• Autorzy: Sharma K. , Kumar P. , Verma G.

Identyfikatory

DOI

10.2478/msp-2018-0063

• Języki publikacji: EN

Abstrakty

EN

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 co-precipitation 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.

Słowa kluczowe

EN

nanocrystals; PVK:ZnSe nanocomposites; XRD; optical properties; fluorescence properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2018
• Tom: Vol. 36, No. 3
• Strony: 494--500
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Sharma K.

• Department of Physics, DAV University, Sarmastpur, Jalandhar-144012, India
• Dr. Shanti Swarup Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh-160014, India

autor

Kumar P.

• Department of Physics, DAV University, Sarmastpur, Jalandhar-144012, India

autor

Verma G.

• Dr. Shanti Swarup Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh-160014, India
• Center for Nanoscience & Nanotechnology, UIEAST, Panjab University, Chandigarh-160014, India

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