title: Reversible conversion of nanoparticles of metallic silver and silver oxide in ultrathin TiO2 films: a chemical transformation in nano-space.
abstract: The in-situ interconversion of silver and silver oxide nanoparticles was achieved in ultrathin TiO2 films using hydrogen and oxygen plasmas as dry redox reagents. Absorption spectroscopy and transmission electron microscopy showed that the chemical transformation gave rise to narrowing of size distributions of both silver and silver oxide nanoparticles upon repeated interconversion.
authors.affiliation: Frontier Research System (FRS), Institute of Physical and Chemical Research (RIKEN), Hirosawa 2-1, Wako-shi, Saitama 351-0198, Japan.
authors.forename: Junhui
authors.initials: J
authors.lastname: He
authors.forename: Izumi
authors.initials: I
authors.lastname: Ichinose
authors.forename: Shigenori
authors.initials: S
authors.lastname: Fujikawa
authors.forename: Toyoki
authors.initials: T
authors.lastname: Kunitake
authors.forename: Aiko
authors.initials: A
authors.lastname: Nakao