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Abstracts Book - IMRC 2018

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• SC4-P084<br />

ELECTRICAL CHARACTERIZATION WITH IMPEDANCE<br />

SPECTROSCOPY STUDY OF TIO2 NANOPARTICLES PREPARED BY<br />

GREEN CHEMICAL MECHANISM<br />

Alvaro Realpe Jimenez 1 , María Teresa Acevedo Morantes 1 , Diana Nuñez 1<br />

1 Universidad de Cartagena, Chemical Engineering, Colombia.<br />

Titanium dioxide nanoparticles were synthesized by a green synthesis<br />

mechanism by using a natural extract as a reducing agent. The electrical<br />

properties of TiO2 thin films deposited by doctor blade method has been<br />

investigated by impedance spectroscopy study and analyzed as a function of<br />

bias, temperature and frequency. Impedance spectroscopy analysis<br />

demonstrated that TiO2 nanoparticles obtained by this mechanism have<br />

semiconducting behavior. Showing a decreased of resistance with the increase<br />

of bias voltage and temperature.<br />

Acknowledgment:<br />

Authors of this investigation are grateful to the University of Cartagena for<br />

providing the resources and the space to perform this project<br />

Keywords: Titanium dioxide, Impedance, green synthesis<br />

Presenting authors email: arealpe@unicartagena.edu.co

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