Preparation and up-conversion fluorescence of rare earth (Er{sup 3+} or Yb{sup 3+}/Er{sup 3+})-doped TiO{sub 2} nanobelts
- College of Chemical and Environmental Engineering, Beijing Technology and Business University, 11 Fucheng Road, Beijing 100048 (China)
- National Center for Nanoscience and Technology, Beijing 100190 (China)
Anatase TiO{sub 2} nanobelts doped with rare earth (RE) ions Yb{sup 3+}, Er{sup 3+} or Yb{sup 3+}/Er{sup 3+} have been prepared using layered titanate nanobelts (LTO NBs) with RE ions as the precursor obtained by ion-exchange between LTO NBs and RE ions under hydrothermal process. Various measurement results demonstrate that the RE ions have doped into the lattice of TiO{sub 2}, and the Er{sup 3+} or Yb{sup 3+}/Er{sup 3+} doped nanobelts show strong visible up-conversion (UC) fluorescence under 980 nm excitation. The UC emission intensity of LTO NBs embedded with Er{sup 3+} or Yb{sup 3+}/Er{sup 3+} is slightly higher than that of the corresponding TiO{sub 2} nanobelts doped with RE ions, whereas higher RE doping content leads to the decrease of UC emission intensity due to the concentration-quenching effect. - Graphical abstract: Anatase TiO{sub 2} nanobelts doped with Er{sup 3+} or Yb{sup 3+}/Er{sup 3+} cations were simply synthesized using two-step preparation proceedings of ion-exchange and hydrothermal treatment, and their upconversion emissions were also investigated. SEM images of TiO{sub 2} nanobelts (NBs) doped with Er{sup 3+} (the left) and codoped with Yb{sup 3+}/Er{sup 3+} (the right).
- OSTI ID:
- 21372523
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 3 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHALCOGENIDES
CHARGED PARTICLES
DOPED MATERIALS
ELECTRON MICROSCOPY
EMISSION
ERBIUM IONS
FLUORESCENCE
ION EXCHANGE
IONS
LUMINESCENCE
MATERIALS
MICROSCOPY
NANOSTRUCTURES
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
SCANNING ELECTRON MICROSCOPY
TITANATES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
YTTERBIUM IONS