Effects of organic surfactant on fluorescence concentration quenching of Nd(3+)-doped LaF(3) nanoparticles.
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.
Cui
Kai
K
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.
Gao
Chao
C
Cui
Xiaoxia
X
Hou
Chaoqi
C
She
Jiangbo
J
Peng
Bo
B
Wei
Wei
W