Abstract
Tin dioxide nanoparticles (SnO2) were synthesized by a sol-gel method. And tin tetra chloride (SnCl4) and ammonium hydroxide (NH4OH) were used as the precursor. NH4OH maintain the homogeneity and stoichiometry of solution through pH. The obtained powder subjected to calcination about 110oC. The obtained samples are characterized by X-ray diffraction, Scanning electron microscope, Fourier transform infrared spectroscope and UV-Visible spectroscopy. From the characterizations it is confirmed that the tetragonal structure and the particles are small and nanosizes, The O-H stretching and C=C bending stretching with chemical compositions are analyzed. The improved conduction properties through lower bandgap and the results are further interpreted and discussed.
Highlights
In recent years the need of semiconductor are very important for functional and active devices
Type of chemicals, stretching and vibration identified through Fourier transform infrared (FTIR) spectroscopy [16, 17]
The optical absorption study performed through UV-Visible absorption spectroscopy [16]
Summary
In recent years the need of semiconductor are very important for functional and active devices. Tin oxide semiconductor possess the transparent, highly stable even upto 500oC in air, physical, chemical and good absorber etc., SnO2 is an IV-VI groups of semiconductor with n-type, the range of band gap from 3.6 to 3.8 eV [1,2,3] It is a potential candidate for gas sensing materials such as CO and O2 for better environment. For this low bandgap and active nature, it can be widely used in many active materials such as semiconductor devices, electrochemical devices such capacitors, condenser, charge storage devices such as batteries and it act as better catalysis rather than other metal oxides [4,5,6]. In this present work the authors adopted a sol-gel method for control over particle size, uniformity, pure and cost effective for synthesis SnO2 with Fe2+ dopant
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