Issue 26, 2023, Issue in Progress
From the journal:

RSC Advances

Red emission of copper aluminate synthesized via chemical and bio-mediated routes

N. R. Srinath,a   H. C. Manjunatha, ORCID logo *a   Y. S. Vidya, ORCID logo *b   R. Munirathnam,a   K. N. Sridhar,c   S. Manjunathad  and  E. Krishnakantha  

* Corresponding authors

a Department of Physics, Government College for Women, Kolar-563101, Karnataka, India
E-mail: manjunathhc@rediffmail.com

b Department of Physics, Lal Bahadur Shastri Government First Grade College, RT Nagar, Bangalore-560032, Karnataka, India
E-mail: vidyays.phy@gmail.com

c Department of Physics, Government First Grade College, Kolar-563101, Karnataka, India

d Department of Chemistry, B.M.S College of Engineering, Bengaluru-560019, Karnataka, India

Abstract

For the first time, copper aluminate nanoparticles (NPs) are synthesized by a combustion method using urea as a fuel (CAOU) and Ocimum sanctum (tulsi) extract as a reducing agent (CAOT). The Bragg reflections of the as-formed product confirm the formation of a cubic phase with Fd[3 with combining macron]m space group. The crystallite size, crystallinity and other structural parameters are discussed. The surface morphology of CAOU is agglomerated in nature whereas that of CAOT is hexagonal in shape. The smaller crystallite size CAOT NPs show a higher energy band gap. The photoluminescence (PL) analysis excited at 302 nm shows that the CIE coordinates fall in the red region. The oxygen defects are mainly responsible for the PL emission. The CCT coordinates confirm that both CAOU and CAOT NPs can find an application in warm light emitting diodes.

Graphical abstract: Red emission of copper aluminate synthesized via chemical and bio-mediated routes

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Article information

DOI
https://doi.org/10.1039/D3RA01969A
Article type
Paper
Submitted
25 Mar 2023
Accepted
20 May 2023
First published
09 Jun 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 17508-17515

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Red emission of copper aluminate synthesized via chemical and bio-mediated routes

N. R. Srinath, H. C. Manjunatha, Y. S. Vidya, R. Munirathnam, K. N. Sridhar, S. Manjunatha and E. Krishnakanth, RSC Adv., 2023, 13, 17508 DOI: 10.1039/D3RA01969A

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