title: Photophysical properties of spherical aggregations of CdS nanocrystals capped with a chromophoric surface agent.
abstract: A novel sulfur-terminal Cd(II) complex, CdS(2)L (L = N-hexyl-3-{2-[4-(2,2':6',2''-terpyridin-4'-yl)phenyl]ethenyl}-carbazole), was successfully synthesized from CdS nanocrystals and the organic chromophores (L), which was confirmed by single-crystal X-ray diffraction analysis. Its photophysical properties have been investigated both experimentally and theoretically. The novel hybrid nanoparticles (CdS/L) were then obtained using the L as surface capped agent, which aggregate into large spheres, exhibiting novel luminescent properties, strong two photon absorption (TPA) and obvious prolonged fluorescence lifetime, which differ from those of the pure CdS nanocrystals and free L.
authors.affiliation: Department of Chemistry, Anhui University, Hefei, 230039, PR China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Zhang
authors.forename: Yuanhao
authors.initials: Y
authors.lastname: Gao
authors.forename: Shengyi
authors.initials: S
authors.lastname: Zhang
authors.forename: Jieying
authors.initials: J
authors.lastname: Wu
authors.forename: Hongping
authors.initials: H
authors.lastname: Zhou
authors.forename: Jiaxiang
authors.initials: J
authors.lastname: Yang
authors.forename: Xutang
authors.initials: X
authors.lastname: Tao
authors.forename: Yupeng
authors.initials: Y
authors.lastname: Tian