Artículos de revistas
An Experimental and Computational Study of β-AgVO3: Optical Properties and Formation of Ag Nanoparticles
Fecha
2016-06-09Registro en:
Journal of Physical Chemistry C, v. 120, n. 22, p. 12254-12264, 2016.
1932-7455
1932-7447
10.1021/acs.jpcc.6b02840
2-s2.0-84974623560
Autor
Universidade Federal de São Carlos (UFSCar)
Universidade de São Paulo (USP)
Universitat Jaume i
Universidade Estadual Paulista (Unesp)
Institución
Resumen
This article aims to gather together in one place and for first time the formation process of Ag nanoparticles (NPs) on β-AgVO3 crystals, driven by an accelerated electron beam from an electronic microscope under high vacuum. Synthesis and optical properties of β-AgVO3 are reported, and the relationship between structural disorder and photoluminescence emissions is discussed. First principle calculations, within a QTAIM framework, have been carried out to provide a deeper insight and understanding of the observed nucleation and early evolution of Ag nanoparticles (NPs) on β-AgVO3 crystals. The Ag nucleation and formation is a result of structural and electronic changes of the [AgO5] and [AgO6] clusters, consistent with Ag metallic formation.