An Experimental and Computational Study of beta-AgVO3: Optical Properties and Formation of Ag Nanoparticles

Autor(es)

de Oliveira, Regiane Cristina ^[1] ; Assis, Marcelo ^[1] ; Teixeira, Mayara Mondego ^[1] ; Penha da Silva, Maya Dayana ^[1] ; Li, Maximo Siu ^[2] ; Andres, Juan ^[3] ; Gracia, Lourdes ^[3] ; Longo, Elson ^[4]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, CDMF UFSCar, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, IFSC, POB 369, BR-13560970 Sao Carlos, SP - Brazil

^[3] Univ Jaume 1, Dept Quim Fis & Analit, Castellon de La Plana 12071 - Spain

^[4] Univ Estadual Paulista, CDMF UNESP, POB 355, BR-14801907 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Physical Chemistry C; v. 120, n. 22, p. 12254-12264, JUN 9 2016.
• Citações Web of Science: 15

Resumo

This article aims to gather together in one place and for first time the formation process of Ag nanoparticles (NPs) on beta-AgVO3 crystals, driven by an accelerated electron beam from an electronic microscope under high vacuum. Synthesis and optical properties of beta-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 beta-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. (AU)

• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs