Effect of sintering temperature on the optical properties of BiFeO{sub 3} nanoparticles

Journal Article · Fri May 06 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946488· OSTI ID:22606514

Jalandhara, Devender; Singh, Gurdhir; Yadav, Kamlesh ^[1]

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1. Centre for Physical Sciences, Central University of Punjab, Bathinda-151001 (India)

BiFeO{sub 3} is a multiferroic material which exhibits excellent optical properties. BiFeO{sub 3} nanoparticles are synthesized by using sol-gel method. The prepared samples are sintered at 500°C, 600°C, 700°C, 800°C and 850°C. In this paper, the effect of sintering temperature on the optical properties in BiFeO{sub 3} nanoparticles is studied. Field emission electron microscopy (FESEM) images show that particles are nearly spherical in shape. It is found that the particles size increases from 37 nm to 51 nm with increasing the sintering temperature. FESEM images also reveal a homogenous size distribution of nanoparticles. All the functional groups are indexed in the Fourier transform infrared spectroscopy (FTIR) spectra. It is found that Fe-O stretching peaks are appeared in the wave number range 447 and 507 cm{sup −1}. The value of energy band gap are found 2.14, 2.26, 2.30, 2.36, and 2.54 eV for the samples sintered at 500°C, 600°C, 700°C, 800°C and 850°C respectively. Thus, the increase in band gap with increasing temperature has been observed. The present samples can be used as photo-catalyst, in non-volatile memories and to make spintronics devices.

• OSTI ID: 22606514
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1728; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
BISMUTH COMPOUNDS
CATALYSTS
DISTRIBUTION
ELECTRON EMISSION
ELECTRON MICROSCOPY
FERRITES
FIELD EMISSION
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
INFRARED SPECTRA
NANOPARTICLES
OPTICAL PROPERTIES
PARTICLE SIZE
SINTERING
SOL-GEL PROCESS
SPHERICAL CONFIGURATION