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Title: Surface plasmon resonances behavior in visible light of non-metal perovskite oxides AgNbO{sub 3}

We investigate the surface plasmon resonances (SPRs) behavior of silver niobate (AgNbO{sub 3}) experimentally and theoretically. Result shows that the localized SPRs (LSPRs) of AgNbO{sub 3} combining with its interband transitions enlarge the absorption band across the whole ultraviolet-visible range. The LSPRs behavior in visible-light is mainly ascribed to the metal-like state of silver ion and self-assembled microstructures of AgNbO{sub 3} microcrystal. The ab initio density functional theory calculations are carried out to obtain the further insight of the SPRs behaviors. Theoretical study indicates that the Ag atoms are weakly bound in the perovskite structure, leading to a metal-like state, which was the key factor to SPRs behavior of AgNbO{sub 3}.
Authors:
; ; ;  [1] ;  [2]
  1. National Key Laboratory for Precision Hot Processing of Metals and School of Materials Science and Engineering, Harbin Institute of Technology, 150001 Harbin (China)
  2. Analysis and Testing Center, Harbin Institute of Technology, 150001 Harbin (China)
Publication Date:
OSTI Identifier:
22395451
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ATOMS; DENSITY FUNCTIONAL METHOD; ENERGY-LEVEL TRANSITIONS; MICROSTRUCTURE; NIOBATES; NONMETALS; OXIDES; PEROVSKITE; RESONANCE; SILVER COMPOUNDS; SILVER IONS; SURFACES; ULTRAVIOLET RADIATION; VISIBLE RADIATION