Structural and optical studies of yttrium oxide nanoparticles synthesized by co-precipitation method

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2010.05.020· OSTI ID:22207372

Srinivasan, Ramasamy; Yogamalar, Rajeswari ^[1]

---

1. Nanomaterials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620 015, Tamil Nadu (India)

Yttrium oxide (yttria) nanoparticles were successfully synthesized by co-precipitation method. As-synthesized and annealed powders were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), UV-visible (UV-vis), photoluminescence (PL) spectra and Fourier transform infrared spectrometer (FTIR). The XRD results show that the as-prepared sample has mixed phase of Y(OH){sub 3} and yttria (Y{sub 2}O{sub 3}). However, cubic yttrium oxide phase alone is found for annealed samples. The strain values are calculated from Williamson-Hall (W-H) plot for annealed samples. SEM and TEM micrographs show that the samples are composed of aggregated nanoparticles with different shapes and sizes. From the UV-vis spectra, it is found that the position of the absorption peak is shifted towards the lower wavelength side when particle size decreases. In the PL spectra, the broad emission bands are observed between 340 and 380 nm and the presence of metal oxide is confirmed by FTIR spectra.

• OSTI ID: 22207372
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 9 Vol. 45; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
COPRECIPITATION
FOURIER TRANSFORMATION
INFRARED SPECTRA
NANOSTRUCTURES
PARTICLE SIZE
PARTICLES
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
X-RAY DIFFRACTION
YTTRIUM OXIDES