Structural and Optical Properties of Nanostructured Fe-Doped SnO₂

• Authors: S. Saleh , A. Ibrahim , S. Mohamed
• Languages of publication: EN

Abstracts

EN

Nanocrystalline Sn_{1-x}Fe_xO₂ (where x = 0, 0.01, 0.02, 0.03 and 0.04) powders have been successfully synthesized by the hydrothermal method followed by sintering at 1000°C for 3 h. The morphology and structure of the samples have been analyzed by field emission scanning electron microscope and X-ray diffraction, respectively. X-ray diffraction results revealed that all diffraction peaks positions agree well with the reflection of a tetragonal rutile structure of SnO₂ phase without extra peaks. The formation of a tetragonal rutile structure of SnO₂ nanostructures was further supported by the Raman spectra. The band gap of Fe-doped SnO₂ nanoparticles was estimated from the diffuse reflectance spectra using the Kubelka-Munk function and it was decreasing slightly with the increase of Fe ion concentration from 3.59 to 3.52 eV. The variation in band gap is attributed predominantly to the lattice strain and particle size. The presence of chemical bonding was confirmed by the Fourier transform infrared spectra.

Keywords

EN

81.07.-b; 61.05.C-; 78.20.-e

Discipline

• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 78.20.-e: Optical properties of bulk materials and thin films(for optical properties related to materials treatment, see 81.40.Tv; for optical materials, see 42.70-a; for optical properties of superconductors, see 74.25.Gz; for optical properties of rocks and minerals, see 91.60.Mk; for optical properties of specific thin films, see 78.66.-w)
• 61.05.C-: X-ray diffraction and scattering(for x-ray diffractometers, see 07.85.Jy; for x-ray studies of crystal defects, see 61.72.Dd, Ff)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 6
• Pages: 1220-1225

Dates

published

2016-06

received

2015-07-21

(unknown)

2016-02-13

(unknown)

2016-03-11

Contributors

author

S. Saleh

• Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
• Physics Department, College of Science and Arts, Najran University, P.O. 1988 Najran, KSA

author

A. Ibrahim

• Chemistry Department, College of Science and Arts, Najran University, P.O. 1988 Najran, KSA

author

S. Mohamed

• Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt

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Identifiers

DOI

10.12693/APhysPolA.129.1220