title: Electron-phonon interactions in ce3+-doped yttrium aluminum garnet nanophosphors.
abstract: Ce 3+-doped yttrium aluminum garnet nanophosphors with sizes near 30 and 250 nm have been synthesized by using chemical gelation and solvothermal methods, respectively. The size-dependent electron-longitudinal-optical-phonon coupling is investigated by fitting measured photoluminescence spectra within the framework of the Brownian oscillator model. Results show that the coupling strength is in a decreasing order from the bulk material to the nanophosphors of much smaller sizes.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798.
authors.forename: L T
authors.initials: LT
authors.lastname: Su
authors.forename: A I Y
authors.initials: AI
authors.lastname: Tok
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.forename: N
authors.initials: N
authors.lastname: Ng
authors.forename: F Y C
authors.initials: FY
authors.lastname: Boey
authors.forename: J L
authors.initials: JL
authors.lastname: Woodhead
authors.forename: C J
authors.initials: CJ
authors.lastname: Summers