One-step synthesis and near-infrared luminescent properties of Er3+ and Ni2+ doped single-crystalline Al18B4O33 nanorods.
Er(3+) and Ni(2+) doped single-crystalline Al(18)B(4)O(33) nanorods were synthesized by a facile one-step toxic-free combustion method. The products were characterized by x-ray diffraction, transmission electron microscopy, selected area electron diffraction, and integrated and time-resolved photoluminescence (PL) measurements. The phase purity, morphology, and PL properties of Er(3+) and Ni(2+) doped Al(18)B(4)O(33) nanorods can be readily controlled by tailoring the annealing temperature. The mechanism for the formation of Al(18)B(4)O(33) nanorods with different aspect ratio is discussed. Er(3+) doped Al(18)B(4)O(33) nanorods show strong PL centered at 1531 nm, while Ni(2+) doped products show superwide PL with a full width at half maximum of up to 250 nm. These aluminum borate nanostructures are promising building blocks for optoelectronics nanodevices.
Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan. hts@port.kobe-u.ac.jp
Hong-Tao
HT
Sun
Fumiaki
F
Shimaoka
Minoru
M
Fujii
Noriko
N
Nitta
Minoru
M
Mizuhata
Hidehiro
H
Yasuda
Shigehito
S
Deki
Shinji
S
Hayashi