title: Design of a water-soluble hybrid nanocomposite of CdTe quantum dots and an iridium complex for photoinduced charge transfer.
abstract: We report the use of an organo-iridium dye conjugated with a water-soluble copolyethylenimine polymer, allowing the hybrid material to be used in combination with thioacid-coated CdTe quantum dots in an aqueous medium. When they are combined, hot carrier cooling observed in the pure quantum-dot case is heavily suppressed indicating fast (ps) electron transfer on a timescale that competes with non-radiative (Auger) relaxation.
authors.affiliation: Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong, Hong Kong SAR.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Steve
authors.initials: S
authors.lastname: Li
authors.forename: Stephen V
authors.initials: SV
authors.lastname: Kershaw
authors.forename: Frederik
authors.initials: F
authors.lastname: Hetsch
authors.forename: Anthony Y Y
authors.initials: AY
authors.lastname: Tam
authors.forename: Guangcun
authors.initials: G
authors.lastname: Shan
authors.forename: Andrei S
authors.initials: AS
authors.lastname: Susha
authors.forename: Chi-Chiu
authors.initials: CC
authors.lastname: Ko
authors.forename: Vivian
authors.initials: V
authors.lastname: Wing-Wah Yam
authors.forename: Kenneth K W
authors.initials: KK
authors.lastname: Lo
authors.forename: Andrey L
authors.initials: AL
authors.lastname: Rogach