Open AccessSynthesis of LaTb x O y :Eu 3+ nanowire arrays and study of performances on fluorescence enhancement and red shift
Author(s) -
Wang Qian,
Feng Jie,
Peng Guangzheng,
Zhang Tong,
Xiang Ji,
Li Peng,
Ye Lina,
Yuan Xiaoyou
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0923
Subject(s) - fluorescence , amorphous solid , materials science , nanowire , doping , aluminium oxide , analytical chemistry (journal) , ion , blueshift , deposition (geology) , nanotechnology , photoluminescence , optoelectronics , chemistry , crystallography , optics , paleontology , physics , organic chemistry , chromatography , sediment , composite material , biology
Highly ordered LaTb x O y :Eu 3+ nanowire arrays have been synthesised in anodic aluminium oxide template by chemical co‐deposition at negative pressure suction, it is amorphous and with homogeneous morphologies. There are two peaks at 619 and 704 nm with excitation wavelength of 394 nm, which have red shift slightly relative to the 5 D 0 – 2 F 2 and 5 D 0 – 7 F 4 energy level transition of Eu 3+ , and Tb 3+ exhibits strong fluorescence enhancement and sensitisation in LaTb x O y :Eu 3+ nanowire arrays with the existence of La 3+ . The fluorescence intensity of LaTb x O y :Eu 3+ nanowire arrays is related to the doping concentration of Eu 3+ ion. When the doping concentration of Eu 3+ is 8%, the fluorescence intensity reaches a maximum, and remarkably decreases at higher concentrations.