title: Effects of organic surfactant on fluorescence concentration quenching of Nd(3+)-doped LaF(3) nanoparticles.
abstract: Distinct effects of organic surfactant [ammonium di-n-octadecyldithioposhate (ADDP)] on the fluorescent property of Nd(3+)-doped LaF(3) nanoparticles were demonstrated by incorporating different amounts of organic surfactant on the nanoparticles. The photoluminescence spectra and fluorescence quenching concentrations of the nanoparticles were measured. A high fluorescence quenching concentration (of about 23.4 wt.%) for the LnF(2.36)ADDP(0.64) nanoparticles was observed. The quenching concentration could be adjusted by varying the amount of organic surfactant. This phenomenon is ascribed to the protection of organic surfactants coordinated on nanoparticles' fluorescent centers.
authors.affiliation: State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences (CAS), Xi'an Shaanxi, 710119, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Cui
authors.forename: Chao
authors.initials: C
authors.lastname: Gao
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Cui
authors.forename: Chaoqi
authors.initials: C
authors.lastname: Hou
authors.forename: Jiangbo
authors.initials: J
authors.lastname: She
authors.forename: Bo
authors.initials: B
authors.lastname: Peng
authors.forename: Wei
authors.initials: W
authors.lastname: Wei