"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Enhancement of phosphorescence of BaAl12O19:Eu phosphor due to Dy, Nd co-activators

A. N. YERPUDE1, S. J. DHOBLE1,*

Affiliation

  1. Department of Physics, RTM Nagpur University, Nagpur -440033, India

Abstract

This paper reports the preparation of BaAl12O19:Eu2+ and BaAl12O19:Eu2+, (RE=Dy3+, Nd3+) phosphors synthesized by a combustion method. The samples were characterized by X-ray powder diffraction, photoluminescence (PL) and phosphorescence decay curve. The PL spectra was recorded when the powders were excited by UV light at room temperature showed broad blue emission, this emission can be ascribed to 4f65d1 to 4f7 transition of the Eu2+ ions. More ever, small shift in wavelength was observed between the doped and co-doped phosphors. The phosphorescence characteristic was studied using the decay curves. The effect of Dy3+ and Nd3+ doping on enhancing the photoluminescence intensity and phosphorescence decay curve of BaAl12O19: Eu 2+ is discussed..

Keywords

Photoluminescence, Phosphorescence, Combustion synthesis, BaAl12O19:Eu2+, X-ray powder diffraction.

Citation

A. N. YERPUDE, S. J. DHOBLE, Enhancement of phosphorescence of BaAl12O19:Eu phosphor due to Dy, Nd co-activators, Optoelectronics and Advanced Materials - Rapid Communications, 5, 10, October 2011, pp.1118-1122 (2011).

Submitted at: Aug. 25, 2011

Accepted at: Oct. 20, 2011