access icon free Structural and optical properties of Ce doped BiFeO3 nanoparticles via sol–gel method

The effect of Ce doping on the structural and optical properties of BiFeO3 nanoparticles via sol–gel method is reported. All samples were a pure phase with perovskite structure. The EDX results show the doped samples contain Bi, Fe, O and Ce elements. The vibrational properties of samples were studied using Raman spectroscopy. Photoluminescence shows an intense peak at 398 nm, the peak strength enhanced greatly and had redshift with the increase of Ce doping concentration. UV–vis results show the samples have a broad absorption band in the range of 500–600 nm. The bandgaps decrease with the concentration increase of Ce doping. It indicates the as-prepared BiFeO3 can be used as visible light catalyst.

Inspec keywords: nanomagnetics; catalysts; X-ray chemical analysis; infrared spectra; photoluminescence; X-ray diffraction; magnetic particles; nanoparticles; bismuth compounds; doping; ultraviolet spectra; energy gap; Raman spectra; doping profiles; nanofabrication; cerium; ferrites; sol-gel processing; spectrochemical analysis; visible spectra

Other keywords: optical properties; photoluminescence; EDX analysis; wavelength 398.0 nm; perovskite structure; wavelength 500.0 nm to 600.0 nm; BiFeO3:Ce; cerium doped bismuth ferrite nanoparticles; UV-vis spectra; Raman spectroscopy; bandgaps; visible light catalyst; as-prepared bismuth ferrite; sol–gel method; structural properties; vibrational properties; red shift

Subjects: Doping and implantation of impurities; Electronic structure of other inorganic semiconductors and insulators (thin films, low dimensional and nanoscale structures); Optical constants and parameters (condensed matter); Fine-particle magnetic systems; Impurity concentration, distribution, and gradients; Infrared and Raman spectra in inorganic crystals; Visible and ultraviolet spectra of other nonmetals; Other methods of nanofabrication; Magnetic properties of nanostructures; Other heat and thermomechanical treatments; Electromagnetic radiation spectrometry (chemical analysis); Amorphous and nanostructured magnetic materials; Heterogeneous catalysis at surfaces and other surface reactions; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Photoluminescence in other inorganic materials; Deposition from liquid phases (melts and solutions); Optical properties of other inorganic semiconductors and insulators (thin films, low-dimensional and nanoscale structures)

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http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2019.0236
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