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The Growth of Tin Oxide Aerogels: Theoretical Modeling and Experimental Characterizations

Published online by Cambridge University Press:  08 April 2015

Carlo Requião da Cunha ,
Fábio Dias da Silva  and
Renzo Morales
Carlo Requião da Cunha
Affiliation:
PPGFis/PGMicro – Departmento de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil.
Fábio Dias da Silva
Affiliation:
PPGFis/PGMicro – Departmento de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil.
Renzo Morales
Affiliation:
Materials Science and Engineering, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil.
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Abstract

Tin oxide aerogels were synthesized using the epoxide-assisted technique and characterized with X-ray diffraction, diffusive reflectance spectroscopy, particle-induced X-ray emission and scanning electron microscopy. Our results indicate that the material is electrically semi-insulating as the result of oxygen vacancies that appear as fixed charges at the bottom of the conduction band. A modification of the technique with the addition of hydrogen peroxide is proposed to reduce the levels of defects and enhance the optical transparency of the material.

Keywords

aerogeloxideSn
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1731: Symposium O – Oxide Semiconductors , 2015 , mrsf14-1731-o03-28
Copyright
Copyright © Materials Research Society 2015 

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References

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