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Journal of Optics

, Volume 46, Issue 2, pp 91–94 | Cite as

Red and blue emitting borate phosphor excited by near Ultraviolet Light

  • N. S. Bajaj
  • K. A. Koparkar
  • P. A. Nagpure
  • S. K. Omanwar
Research Article
  • 171 Downloads

Abstract

A highly intense reddish-orange and blue emitting borate phosphors YAl3(BO3)4:Sm3+ and LaMgB5O10:Ce3+ have been synthesized by a combustion synthesis method using urea as a fuel. Their luminescent properties have been studied over the 200–450 nm excitation range. The excitation and emission spectra of these phosphors were measured by a HITACHI F-7000 fluorescence spectrophotometer. The emission spectrum of Sm3+ in YAl3(BO3)4 phosphor monitored for 402 nm excitation composed of 564, 600, and 648 nm emission peaks, and the excitation spectra monitored at 600 nm emission shows peaks at 345, 362, 375, 402, 421 and 445 nm. The emission spectrum of Ce3+ in LaMgB5O10 phosphor exhibits a symmetrical band centered around 430 nm and excitation spectra monitored at 430 nm emission shows peaks at 272, 326 and 372 nm. The phosphors YAl3(BO3)4:Sm3+ and LaMgB5O10:Ce3+can be a promising red and blue-emitting phosphor for UV LED applications.

Keywords

Borates Photoluminescence Combustion Near UV LED 

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Copyright information

© The Optical Society of India 2016

Authors and Affiliations

  • N. S. Bajaj
    • 1
  • K. A. Koparkar
    • 2
  • P. A. Nagpure
    • 3
  • S. K. Omanwar
    • 2
  1. 1.Toshniwal ACS CollegeSengaon, HingoliIndia
  2. 2.Department of PhysicsSant Gadge Baba Amravati UniversityAmravatiIndia
  3. 3.Department of PhysicsShri Shivaji Science CollegeAmravatiIndia

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