Asymmetric optical properties of photocatalytically deposited plasmonic silver nanoparticles. Issue 10 (18th February 2016)

• Record Type: Journal Article
• Authors: Okumura, Arisa; Saito, Koichiro; Tatsuma, Tetsu
• Is Part Of: Physical chemistry chemical physics. Volume 18:Issue 10(2016)
• Page Start: 7007
• Page End: 7010
• Publication Date: 2016-02-18
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp00331a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Plasmonic Ag nanoparticles deposited and grown photocatalytically for a sufficient period of time on a TiO2 thin film scatter blue or reddish light for the front or back incidence, respectively. Abstract : Ag nanoparticles deposited and grown photocatalytically for a sufficient period of time on a TiO2 thin film scatter blue light and reflect reddish light when the particles are irradiated directly ( i.e. front incidence). On the other hand, they scatter reddish light and reflect blue light when the particles are irradiated through the TiO2 film ( i.e. back incidence). The asymmetric optical behaviour is attributed to the asymmetric plasmon resonance, for which a sufficient height and a sufficient width at the top and the bottom of the Ag nanoparticles are important.