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Aloe-vera Mediated Synthesis of Eu3+ doped CaIn2O4-carbon Hybrid Nanostructure and its Light Emission Properties

Published online by Cambridge University Press:  05 January 2017

Barkha Tiwari ,
Shanker Ram  and
Pallab Banerji
Barkha Tiwari*
Affiliation:
Materials Science Centre, Indian Institute of Technology, Kharagpur, India
Shanker Ram
Affiliation:
Materials Science Centre, Indian Institute of Technology, Kharagpur, India
Pallab Banerji
Affiliation:
Materials Science Centre, Indian Institute of Technology, Kharagpur, India
*
*(Email: [email protected])
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Abstract

The Eu3+ doped CaIn2O4 is a novel oxide phosphor useful for multifunctional applications such as display systems, lasers, energy-converters, photocatalysts, optical imaging, medical tools, and several others. Here, a natural aloe-vera gel is explored to obtain a precursor gel bridging Eu3+, Ca2+ and In3+ cations in a network so that it yields Eu3+:CaIn2O4 of small crystallites bonding over a grafted C-sp2 surface layer. The Eu3+ in varied from 0.1 to 2 mol% promptly promotes blue and red light-emissions in two major bands over 300-580 nm and 600-900 nm in 5DJ → 7FJ′ (J = 3, 2, 1 and J′ = 4 →1) and 5D0 → 7F1→ 4 transitions in the Eu3+ species, what is it is required in many optical and catalytic devices. The novel results are described in correlation to the light absorption and core-shell nanostructure.

Keywords

x-ray diffraction (XRD)scanning electron microscopy (SEM)photoemission
Type
Articles
Information
MRS Advances , Volume 2 , Issue 3: Electronics, Magnetics and Photonics , 2017 , pp. 141 - 146
Copyright
Copyright © Materials Research Society 2017 

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