Synthesis of LaTb x O y :Eu3+ nanowire arrays and study of performances on fluorescence enhancement and red shift
- Author(s): Qian Wang 1 ; Jie Feng 1 ; Guangzheng Peng 1 ; Tong Zhang 1 ; Ji Xiang 1 ; Peng Li 1 ; Lina Ye 1 ; Xiaoyou Yuan 1
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View affiliations
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Affiliations:
1:
School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , People's Republic of China
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Affiliations:
1:
School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , People's Republic of China
- Source:
Volume 13, Issue 9,
September
2018,
p.
1339 – 1342
DOI: 10.1049/mnl.2017.0923 , Online ISSN 1750-0443
© The Institution of Engineering and Technology
Received
29/12/2017,
Accepted
08/06/2018,
Revised
18/03/2018,
Published
01/09/2018
Highly ordered LaTb x O y :Eu3+ 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 5D0–2F2 and 5D0–7F4 energy level transition of Eu3+, and Tb3+ exhibits strong fluorescence enhancement and sensitisation in LaTb x O y :Eu3+ nanowire arrays with the existence of La3+. The fluorescence intensity of LaTb x O y :Eu3+ nanowire arrays is related to the doping concentration of Eu3+ ion. When the doping concentration of Eu3+ is 8%, the fluorescence intensity reaches a maximum, and remarkably decreases at higher concentrations.
Inspec keywords: red shift; nanowires; fluorescence; doping profiles; europium; nanofabrication; lanthanum compounds
Other keywords: amorphous morphologies; red shift; fluorescence enhancement; fluorescence sensitisation; nanowire arrays; LaTbxOy:Eu; anodic aluminium oxide template; wavelength 704 nm; wavelength 619 nm; doping concentration; wavelength 394 nm; homogeneous morphologies; chemical co-deposition
Subjects: Low-dimensional structures: growth, structure and nonelectronic properties; Other methods of nanofabrication; Optical properties of other inorganic semiconductors and insulators (thin films, low-dimensional and nanoscale structures); Impurity concentration, distribution, and gradients; Photoluminescence in other inorganic materials
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