Structure and luminescence properties of CdSe/CdS-cellulose nanocomposites

We have observed the structure and luminescence properties of CdSe/CdS-cellulose nanocomposites ( CCCNC ) and characterized it. The CCCNC is composed of two component materials, nanocrystalline CdSe/CdS core–shell QDs and nanocrystalline cellulose. The structural and optical characteristics of  CCCN...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020-09, Vol.31 (17), p.14101-14107
Main Authors: Patra, S. R., Mallick, B.
Format: Article
Language:English
Subjects:
Absorption spectra
Cadmium sulfide
Cellulose
Characterization and Evaluation of Materials
Chemistry and Materials Science
Luminescence
Materials Science
Nanocomposites
Nanocrystals
Optical and Electronic Materials
Optical properties
Phosphors
Photoluminescence
Rigid structures
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Summary:We have observed the structure and luminescence properties of CdSe/CdS-cellulose nanocomposites ( CCCNC ) and characterized it. The CCCNC is composed of two component materials, nanocrystalline CdSe/CdS core–shell QDs and nanocrystalline cellulose. The structural and optical characteristics of  CCCNC were analysed using XRD, TEM, PL and I–V characteristic techniques. A spherical phosphor particle of dimension about 14 nm was confirmed by TEM. The characteristic X-ray diffraction planes of the said QDs as (100), (002) and (101) were found out to be superimposed at the tail of the most intense plane (002) of cellulose. Sharp photoluminescence peak at 650 nm and absorption spectra indicate that the distributions of quantum size possess rigid structure of the entire shell. It is expected that the present study will have high promise for X-ray-induced photoluminescence-based sensing application.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-03964-w