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Synthesis and characterization of hybrid materials with polythiophenes derivatives for sensor applications

Grant number: 09/16413-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2010
Effective date (End): February 28, 2013
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal researcher:Celso Valentim Santilli
Grantee:Vanessa Cristina Gonçalves
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:07/53073-4 - Mesoporous ceramics and multifunctional organic-inorganic hybrids prepared by sol-gel process, AP.TEM


In the last decades, the general concerns about the increasing of toxic gases emission levels induced a growing number of researches in new materials, devices and technologies to produce sensors to control the emissions. Metallic oxides and conjugated polymer sensors have shown promising results in these applications, which will make possible construction of portable and more efficient detection systems. However, there are some significant disadvantages of these materials, such as lack of selectivity and sensitivity. In this context, we propose the synthesis of hybrid materials with polythiophenes derivatives, aiming to improve the gas sensors properties. Chemical-structural and morphological characterizations of these materials will be performed. Optical and electrical characteristics of their thin films obtained from sol-gel process will be study in the presence of different gases. (AU)

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