International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

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SYNTHESIS AND PHOTOLUMINESCENCE PROPERTIES OF RED EMITTING SRLIB9O15:EU3+ PHOSPHOR

    2 Author(s):  N. V. LOKHANDE, N. S. KOKODE

Vol -  13, Issue- 4 ,         Page(s) : 27 - 30  (2022 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

A series of Sr(1-x) LiB9O15:xEu3+ (x= 0.01, 0.03, 0.05, and 0.07 mole) red emitting phosphors have been successfully synthesized by combustion method and characterized by photoluminescence (PL). The luminescence properties of all Eu3+ -doped samples were investigated by excitation and emission spectra. The excitation spectra of SrLiB9O15:Eu3+ phosphors show characteristic peak at 395 nm in addition to other characteristic peaks of Eu3+ under emission at 615 nm. The emission spectra of Eu3+ -doped samples indicated most intensive red emission band dominated at 615 nm belonging to 5D0→7F2 electric dipole transition. Furthermore, the optimum or quenching concentration of Eu3+ ion has been determined as x = 0.05 showed the maximum emission intensity when it was excited at 395 nm.

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