Photoresponse enhancement in TiO2 thin films by incorporation Ni and Cr nanoparticles using sol–gel method.

Autor:	Solis-Cortazar, J. C., Zamudio-Torres, I., Rojas-Blanco, L., Perez-Hernandez, G., Arellano-Cortaza, M., Castillo-Palomera, R., de los Monteros, A. Espinosa, Ramirez-Morales, E.
Předmět:	SOL-gel processes BAND gaps NANOPARTICLES THIN films ENERGY bands
Zdroj:	Journal of Materials Science: Materials in Electronics; Apr2022, Vol. 33 Issue 10, p7668-7678, 11p
Abstrakt:	The incorporation of nanoparticles in TiO2 generates narrow bands located in the energy gap and its reduction. In this work, TiO2 films and the incorporation of Ni and Cr nanoparticles by the sol–gel method and assisting dip-coating technique are reported. Characterization of the TiO2 films in their structure was carried out using XRD and Raman, finding the anatase TiO2 structure for all the samples. Using AFM and TEM, it was possible to study nanoparticles' influence on topography and transmittance, finding roughness values lower than 1 nm and decreasing the gap energy and resistivity due to the decrease in porosity, which improvement the current conduction. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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