Low Temperature Synthesis and Improvement in Optical Properties of MgO: Tb3+
Nikhilesh S. Bajaj1, Chetan B. Palan2, Shreeniwas K. Omanwar2
1. Toshniwal Arts, Commerece and Science College, Sengoan, Dist: Hingoli (MH), India
2. Department of Physics, SGB Amravati University, Amravati-444602, (MH) India
2. Department of Physics, SGB Amravati University, Amravati-444602, (MH) India
Abstract: In current report the photoluminescence properties and enhancement of luminescence intensity in MgO: Tb3+ phosphor using charge compensation is reported. The MgO: Tb3+ synthesized by combustion synthesis. X-ray powder diffraction (XRD) analysis confirms formation of the MgO: Tb3+ samples with cubic structure. The PL and PLE spectra indicate that the main emission wavelength of MgO: Tb3+ is at 382 nm in black light region i.e. hardly visible violet region (N-UV) under 270 nm excitation. The concentration quenching is studied for Tb3+ in MgO occurs at 0.002 moles giving highest intensity. Further, the optimum sample studied for effect of charge compensator like (Li+, Na+, and K+). The results show that the emission intensity can be improved by all the three charge compensators but charge compensation using K+ ions gives the optimal luminescence intensity. The concentration quenching of K+ also studied.
Key words: Photoluminescence; charge compensation; quenching effect.
Cite: Nikhilesh S. Bajaj, Chetan B. Palan, Shreeniwas K. Omanwar, "Low Temperature Synthesis and Improvement in Optical Properties of MgO: Tb3+," International Journal of Materials Science and Engineering, Vol. 3, No. 2, pp. 167-174, June 2015. doi: 10.17706/ijmse.2015.3.2.167-174
Key words: Photoluminescence; charge compensation; quenching effect.
Cite: Nikhilesh S. Bajaj, Chetan B. Palan, Shreeniwas K. Omanwar, "Low Temperature Synthesis and Improvement in Optical Properties of MgO: Tb3+," International Journal of Materials Science and Engineering, Vol. 3, No. 2, pp. 167-174, June 2015. doi: 10.17706/ijmse.2015.3.2.167-174
General Information
ISSN: 2315-4527 (Print)
Abbreviated Title: Int. J. Mater. Sci. Eng.
Editor-in-Chief: Prof. Emeritus Dato' Dr. Muhammad Yahaya
DOI: 10.17706/ijmse
Abstracting/ Indexing: Ulrich's Periodicals Directory, Google Scholar, Crossref
E-mail: ijmse@iap.org
What's New
-
Oct 29, 2022 News!
-
May 26, 2022 News!
The dois of the papers published in Volume 10, Number 2 have all been activated by Crossref.
-
May 26, 2022 News!
-
Feb 17, 2022 News!
-
Nov 08, 2021 News!
- Read more>>