info:eu-repo/semantics/article
Simple and rapid one-step electrochemical synthesis of nanogranular Cu2O films
Fecha
2018-08Registro en:
Oyarzún Jerez, Diego Patricio; Broens, Martin Ignacio; Linarez Pérez, Omar Ezequiel; Lopez Teijelo, Manuel; Islas, Rafael; et al.; Simple and rapid one-step electrochemical synthesis of nanogranular Cu2O films; Wiley Blackwell Publishing, Inc; ChemistrySelect; 3; 30; 8-2018; 8610-8614
2365-6549
CONICET Digital
CONICET
Autor
Oyarzún Jerez, Diego Patricio
Broens, Martin Ignacio
Linarez Pérez, Omar Ezequiel
Lopez Teijelo, Manuel
Islas, Rafael
Arratia-Perez, Ramiro
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.