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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

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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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