Gamma irradiation induced method in preparation of Gd2O2S: Eu3+ phosphors: The effect of dose towards luminescent properties

S. Rahim, M. H. Hasim, M. T.M. Ayob, Irman Abdul Rahman, Shahidan Radiman

Research output: Contribution to journalConference article

Abstract

A novel gamma irradiation induced synthesis method of Gd2O2S:Eu3+ phosphors was investigated in the presence of cetyltrimethylammonium bromide (CTAB). The effect of irradiation doses (50-150kGy) on structural and morphology analysis as well as luminescence properties were characterized by X-ray diffraction (XRD), field emission scanning microscopy (FESEM) and photoluminescence spectrometer (PL). The results show that gamma radiation is potentially induced formation of Gd2O2S:Eu3+ phosphors from radiation reduction and/or precipitation of insoluble compounds as the hexagonal phase structure was formed without any impurities as proven in XRD pattern. The morphologies were observed that the obtained Gd2O2S:Eu3+ phosphors possess sphere structure with smooth surface at 100 kGy irradiated dose. PL spectroscopy reveals that the strongest red emission peaks is located at 626 nm under 325 nm light excitation, which corresponds to 5D07F2 transition of Eu3+ ions. An optimized dose for excellent luminescent was observed at 100 kGy. The results suggested that the Gd2O2S:Eu3+ phosphors may have a beneficial approach in field of imaging device or media.

Original languageEnglish
Article number012017
JournalIOP Conference Series: Materials Science and Engineering
Volume298
Issue number1
DOIs
Publication statusPublished - 12 Feb 2018
EventInternational Nuclear Science, Technology and Engineering Conference 2017, iNuSTEC 2017 - Kajang, Selangor, Malaysia
Duration: 25 Sep 201727 Sep 2017

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Phosphors
Dosimetry
Irradiation
Spectrometers
Photoluminescence
X ray diffraction
Phase structure
Gamma rays
Field emission
Diffraction patterns
Luminescence
Microscopic examination
Spectroscopy
Impurities
Ions
Scanning
Imaging techniques
Radiation
gadolinium sulfoxylate

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Gamma irradiation induced method in preparation of Gd2O2S : Eu3+ phosphors: The effect of dose towards luminescent properties. / Rahim, S.; Hasim, M. H.; Ayob, M. T.M.; Abdul Rahman, Irman; Radiman, Shahidan.

In: IOP Conference Series: Materials Science and Engineering, Vol. 298, No. 1, 012017, 12.02.2018.

Research output: Contribution to journalConference article

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