Red emission of copper aluminate synthesized via chemical and bio-mediated routes.
| Autor: | Srinath NR; Department of Physics, Government College for Women Kolar-563101 Karnataka India manjunathhc@rediffmail.com., Manjunatha HC; Department of Physics, Government College for Women Kolar-563101 Karnataka India manjunathhc@rediffmail.com., Vidya YS; Department of Physics, Lal Bahadur Shastri Government First Grade College RT Nagar Bangalore-560032 Karnataka India vidyays.phy@gmail.com., Munirathnam R; Department of Physics, Government College for Women Kolar-563101 Karnataka India manjunathhc@rediffmail.com., Sridhar KN; Department of Physics, Government First Grade College Kolar-563101 Karnataka India., Manjunatha S; Department of Chemistry, B.M.S College of Engineering Bengaluru-560019 Karnataka India., Krishnakanth E; Department of Physics, Government College for Women Kolar-563101 Karnataka India manjunathhc@rediffmail.com. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | RSC advances [RSC Adv] 2023 Jun 09; Vol. 13 (26), pp. 17508-17515. Date of Electronic Publication: 2023 Jun 09 (Print Publication: 2023). |
| DOI: | 10.1039/d3ra01969a |
| Abstrakt: | 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 3̄ 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. Competing Interests: There is no conflicts to declare. (This journal is © The Royal Society of Chemistry.) |
| Databáze: | MEDLINE |
| Externí odkaz: |
|