Red luminescence CaSiO3:Eu3+ eco-friendly nontoxic phosphor derived from biomass for display and latent finger print applications

M. Krishnam Raju; Pooja Yadav; M. Gangadhar; Sushil Patel; Raj Kumar Samudrala; Anita Kumari; M. Bramanandam; P. Abdul Azeem

Results in Chemistry (Oct 2024)

Red luminescence CaSiO3:Eu3+ eco-friendly nontoxic phosphor derived from biomass for display and latent finger print applications

M. Krishnam Raju,
Pooja Yadav,
M. Gangadhar,
Sushil Patel,
Raj Kumar Samudrala,
Anita Kumari,
M. Bramanandam,
P. Abdul Azeem

Affiliations

M. Krishnam Raju: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India; Department of Electronics & Communication Engineering, Faculty of Engineering & Technology, Parul University, Vadodara, Gujarat 391760, India
Pooja Yadav: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India
M. Gangadhar: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India
Sushil Patel: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India
Raj Kumar Samudrala: Department of Physics, SR University, Warangal, Telangana 506371, India
Anita Kumari: Department of Biochemistry, School of Life Science, University of Hyderabad, Hyderabad, Telangana 50046, India
M. Bramanandam: Department of Biochemistry, School of Life Science, University of Hyderabad, Hyderabad, Telangana 50046, India
P. Abdul Azeem: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India; Centre of Excellence-Glass Science and Technology, National Institute of Technology Warangal, Telangana 506004, India; Corresponding author at: Department of Physics, National Institute of Technology Warangal, Telangana 506004, India.

Journal volume & issue: Vol. 11
p. 101838

Abstract

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Red luminescent Eu3+ activated CaSiO3 phosphor has been prepared by facile green synthesis hydrothermal route using biomass. Future technologies will be required to synthesize on a massive scale using quick, easy, and affordable ways. The current study deals with the preparation of CaSiO3:Eu3+ using egg shell and rice husk ash. The synthesized powders had a single phased monoclinic structure with space group P1 21/C1. It has been found that addition of Eu3+ ion dopant causes decrease in the optical energy band gap. The phosphor exhibits the intense peak at 612 nm corresponds to 5D0 → 7F2 of the Eu3+ anions upon excitation at 392 nm. The lifetimes ranged from 1.90 to 3.53 ms. With an increase in Eu3+ concentration, emission was tuned towards the red area of the CIE diagram. In order to detect hidden fingerprints on flat surfaces using the powder dusting approach, the CaSiO3:Eu3+ effectiveness was also evaluated. The nontoxicity of CaSiO3:Eu3+ was validated by carrying out a cell viability test on MG 63 cell lines. These outcomes demonstrated that the luminescent CaSiO3:Eu3+ can be used as potential material for display, security encoding, and latent fingerprint applications.

Published in Results in Chemistry

ISSN: 2211-7156 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/results-in-chemistry/

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