Simple and Rapid One-Step Electrochemical Synthesis of Nanogranular Cu2O Films
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Archivos
Fecha
2018-08
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Wiley-Blackwell
Nombre de Curso
Licencia CC
Licencia CC
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. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Notas
Indexación Scopus
Palabras clave
Thin Films, Cathodes, Heterojunctions, Anodic Cu2O, Electrosynthesis, Ethylene glycol media, Materials Science, Nanostructures
Citación
ChemistrySelect Volume 3, Issue 30, Pages 8610 - 861414 August 2018
DOI
10.1002/slct.201703128