Structural and optical studies of Pd doped tin oxide nanoparticles prepared by chemical co-precipitation method

Indium tin oxide (ITO) nanoparticles were synthesized by co-precipitation method using ammonia as a precipitator in absence/presence of various surfactants (LABS and Triton X-100). The synthesized nanoparticles were investigated by scanning electron microscopy, resistance measurement, photoluminescence (PL) spectroscopy and X-ray diffractometry (XRD) techniques. The XRD patterns of nanoparticles were also studied by Rietveld refinement method for calculation of crystallite size, micro-strain and lattice parameter. The results indicate that by application of LABS and Triton X-100 as surfactant the particle size was increased. Two luminescence bands were observed in PL spectra of ITO nanoparticles with the excitation energy lower than their band gaps. It was found that the ratios of luminescence bands have relation with resistances and colors of ITO nanoparticles. In addition, the band structure of ITO nanoparticles was described considering the obtained results.

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Influence of pH and Temperature on The Structure and Size of Tin Oxide Nanoparticles

Journal of Nanoscience and Technology ◽

10.30799/jnst.182.18040527 ◽

2018 ◽

Vol 4 (5) ◽

pp. 564-566

Author(s):

I. Merlin ◽

C. Vedhi ◽

K. Muthu ◽

A. Syed Mohamed

Keyword(s):

Particle Size ◽

Tin Oxide ◽

Systematic Study ◽

Precipitation Method ◽

Oxide Nanoparticles ◽

Reaction Parameters ◽

Temperature Changes ◽

Xrd Studies ◽

Tin Oxide Nanoparticles ◽

Influence Of Ph

A systematic study on the preparation of tin oxide nanoparticles using the precipitation method has been conducted. The preparation of nanomaterials was by varying reaction parameters such as pH and temperature. The tin oxide nanoparticles were characterized by using AFM, SEM, XRD and UV-Vis. Particle size was obtained using XRD studies the value is 28.8 nm, 35.2 nm, 30.8 nm and 33.8 nm. It was found that the alteration of pH and temperature changes the particle size.

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Structure and Optical Properties of Quantum Confined Pure and Cu Doped SnO2

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1159.60 ◽

2020 ◽

Vol 1159 ◽

pp. 60-66

Author(s):

J.R. Sheeba ◽

Sathasivam Radhika ◽

C.M. Padma

Keyword(s):

Band Gap ◽

Tin Oxide ◽

Optical Band Gap ◽

Green Emission ◽

Precipitation Method ◽

Rutile Structure ◽

Tetragonal Rutile Structure ◽

Ft Ir ◽

Tin Oxide Nanoparticles ◽

Co Precipitation

Pure and copper doped tin oxide nanoparticles were synthesized by co-precipitation method and are characterized by XRD, SEM, EDAX, UV-Visible, photoluminescence, and FT-IR analysis techniques. Tetragonal rutile structure is confirmed from XRD and the crystallite size is found to be between 3.8nm and 4.8nm. The optical band gap is observed from UV-Vis spectrum and is found to be 3.99eV and 3.93eV for tin oxide and copper doped tin oxide respectively. The optical band gap of pure and Copper doped tin oxide were blue shifted due to quantum confinement. Photoluminescence spectrum shows UV, blue and green emission peaks.

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