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Process Characterization of Ultra-fine Tin Oxide Fibers Synthesis

Published online by Cambridge University Press:  01 February 2011

Yu Wang ,
Idalia Ramos  and
Jorge J. Santiago-Avilés
Yu Wang
Affiliation:
wangyu@alumni.upenn.edu, University of Pennsylvania, Department of Electrical and Systems Engineering, 200 South 33rd Street, Philadelphia, PA, 19104, United States, 530-219-3644
Idalia Ramos
Affiliation:
iramos@mate.uprh.edu, University of Puerto Rico, Department of Physics & Electronics, Humacao, 00791, Puerto Rico
Jorge J. Santiago-Avilés
Affiliation:
santiago@seas.upenn.edu, University of Pennsylvania, Department of Electrical & Systems Engineering, 200 South 33rd Street, Philadelphia, PA, 19104, United States
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Abstract

Tin oxide (SnO2) with rutile structure is a wide-band gap semiconductor that has been used extensively in optoelectronic devices and sensors. A fibrous shape is especially favorable for the sensor applications. The authors synthesized micro-/nano- SnO2 fibers from a precursor solution of poly (ethylene oxide) (PEO), chloroform (CHCl3) and dimethyldineodecanoate tin (C22H44O4Sn) using electrospinning and metallorganics decomposition techniques. This paper uses Fourier-transform infrared spectroscopy, thermogravimetric and differential thermal analysis, and x-ray diffraction to reveal a series of chemical and physical changes from the starting chemicals to the final product of ultra-fine SnO2 fibers: the solvent CHCl3 evaporates during the electrospinning; the organic groups in PEO and C22H44O4Sn decompose with Sn-C bond in C22H44O4Sn replaced by Sn-O between 220 and 300°C, and transform into rutile structure between 300 and 380°C; the incipient rutile lattice develops into a relatively complete degree after sintering at higher temperatures up to 600°C.

Keywords

oxidefiberinfrared (IR) spectroscopy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 951: Symposium E – Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection , 2006 , 0951-E09-17
Copyright
Copyright © Materials Research Society 2007

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