An Experimental and Computational Study of β‑AgVO3: Optical Properties and Formation of Ag Nanoparticles
journal contributionposted on 2016-05-19, 00:00 authored by Regiane Cristina de Oliveira, Marcelo Assis, Mayara Mondego Teixeira, Maya Dayana Penha da Silva, Máximo Siu Li, Juan Andres, Lourdes Gracia, Elson Longo
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.