Simple and Rapid One-Step Electrochemical Synthesis of Nanogranular Cu2O Films

Diego P. Oyarzún, Martín I. Broens, Omar E. Linarez Pérez, Manuel López Teijelo, Rafael Islas, Ramiro Arratia-Perez

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

In the present work, we report a simple experimental strategy for the one-step electrochemical synthesis of nanogranular Cu2O films by copper anodization in fluoride-containing ethylene glycol media. Microscopic exploration using field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and transmission electron microscopy (TEM), shows the formation of spherical shape grains with sizes ranging from 20 to 40 nm. Raman and X-Ray Photoemission Spectroscopy (XPS) results indicate that only CuI oxide is obtained. A band gap energy Eg=2.01 eV is estimated from UV–vis reflectance spectroscopy indicating that an indirect transition mechanism between semiconductor bands takes place. These evidences indicate that the present synthesis of nanogranular Cu2O films is a promising method for obtaining improved properties of materials for the design of photoelectronic devices.

Idioma originalInglés
Páginas (desde-hasta)8610-8614
Número de páginas5
PublicaciónChemistrySelect
Volumen3
N.º30
DOI
EstadoPublicada - 14 ago 2018

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