SAIP2012

Synthesis and characterization of SnO₂ Nanostructures for gas sensing applications

11 Jul 2012, 11:35

20m

Oral Presentation Track A - Division for Condensed Matter Physics and Materials DCMPM1

Speaker

Mr Bongani Thabethe (Msm csir)

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

no

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

Msc

Main supervisor (name and email)<br>and his / her institution

gerald malgas, Gmalgas@csir.co.za

Apply to be<br> consider for a student <br> &nbsp; award (Yes / No)?

yes

Abstract content <br> &nbsp; (Max 300 words)

Tin oxide (SnO₂) is an important wide-bandgap (3.6 eV) n-type semiconductor with a rutile structure which has received a great deal of attention over the past few years due to its high transparency in the visible part of the spectrum, structural and chemical stability. It has been investigated for advanced functional use such as solid state gas sensors, transparent conductors, oxidation catalysts and optoelectronic devices [1-4]. In this work we report on the successful formation of SnO₂ nanostructures by using the Chemical vapour deposition process. As synthesized SnO₂ samples were characterized using scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and nitrogen adsorption analysis (BET). X-ray analysis of the tin oxide nanomaterial showed a highly, pure crystalline material