Swift heavy ion induced structural and optical properties of Y{sub 2}O{sub 3}:Eu{sup 3+} nanophosphor

Journal Article · Fri Feb 15 04:00:00 EST 2013 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2012.11.079· OSTI ID:22217698

Som, S. ^[1]; Lochab, S. P. ^[2]

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1. Department of Applied Physics, Indian School of Mines, Dhanbad 826004 (India)
2. Inter University Accelerator Centre, New Delhi 110067 (India)

Highlights: ► Europium doped yttrium oxide nanophosphor was synthesized via combustion method. ► Prepared nanophosphor was irradiated by 150 MeV Swift heavy ion (Ni{sup 7+}). ► Structural (XRD, FTIR, and TEM) and optical properties (DR and PL) after ion irradiation were studied. ► Band gap increases with ion fluence due to the decrease in average crystallite size. -- Abstract: This paper reports the structural and optical modifications of Y{sub 2}O{sub 3}:Eu{sup 3+} nanophosphor induced by 150 MeV Ni{sup 7+} swift heavy ions (SHI) in the fluence range 1 × 10{sup 11} to 1 × 10{sup 13} ions/cm{sup 2}. The XRD, TEM and FTIR studies confirm the loss of crystallinity of the nanophosphors after ion irradiation. Diffuse reflectance spectrum shows a blue shift in the absorption band for SHI induced nanophosphors. An increase in the intensity of photoluminescence peaks without any shift in the peak positions was observed.

• OSTI ID: 22217698
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 2 Vol. 48; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
DOPED MATERIALS
EUROPIUM
EUROPIUM IONS
FOURIER TRANSFORMATION
HEAVY IONS
INFRARED SPECTRA
IRRADIATION
OPTICAL PROPERTIES
PEAKS
PHOTOLUMINESCENCE
RADIATION EFFECTS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
YTTRIUM OXIDES