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Title of Journal: J SolGel Sci Technol

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Abbravation: Journal of Sol-Gel Science and Technology

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Springer US

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DOI

10.1007/s11284-012-0968-y

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1573-4846

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Structure photoluminescence and electrical proper

Authors: H W Zheng X Y Liu W C Wang H R Zhang Y X Wang G S Yin Y Z Gu W F Zhang
Publish Date: 2011/02/24
Volume: 58, Issue: 2, Pages: 539-544
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Abstract

Eu–Nd codoped CaBi375−x Eu x Nd025Ti4O15 CBENT powders were synthesized by a simple sol–gel method Their structures were examined by Xray diffraction Raman spectrum respectively The coexistence of orthorhombic and tetragonal phase was found when the Eu3+ doping content varied from 03 to 06 The photoluminescence properties of the CBENT powders show that the intense emission bands centered at around 574 590 and 612 nm are due to the transitions of 5D0 → 7F0 5D0 → 7F1 and 5D0 → 7F2 of the Eu3+ ions respectively The spectra of the temperature dependence of dielectric constant indicate that the Curie temperature T C gradually decreases from 785 to 765 °C The peaks of dielectric constant are restrained with increasing Eu3+ doping concentration suggesting the weakness of the ferroelectricity Combining the photoluminescence with the ferroelectric property in the CBENT the optimal Eu3+ doping concentration x is 02The authors would like to thank Dr Peng Zheng Zhigang Gai and Minglei Zhao for dielectric ferroelectric test and helpful discussion This work was supported by the Natural Science Foundation of China under the grant No 50802023 Scientific and Technological Brainstorm Key Project of Henan Province 082102270039 102102210115 the Finance Assistance Scheme of Backbone Youth Teachers in University of Henan Province 2009GGJS026 Research Plan for Natural Science in the Education Department of Henan Province 2009A430002 2011A430004

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  4. Biosynthesis of silver nanoparticles using Lantana camara flower extract and its application
  5. Influences of preferred orientation growth on electrical properties of ZnO:Al films by sol–gel method
  6. Synthesis of nanosized carbonated apatite by a modified Pechini method: hydroxyapatite nucleation from a polymeric matrix
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  8. Removal of Pb(II) ions from aqueous systems using thiol-functionalized cobalt-ferrite magnetic nanoparticles
  9. Simple synthesis of Co 3 O 4 nanoflakes using a low temperature sol–gel method suitable for photodegradation of dyes
  10. The effect of PO 2,5 and AlO 1,5 additions on structural changes and crystallization behavior of SiO 2 -TiO 2 sol-gel derived glasses and thin films
  11. Antiwetting silica–gelatin nanohybrid and transparent nano coatings synthesised through an aqueous sol–gel process
  12. Comparison of structure and phase change characteristic of microencapsulated core/shell Al–Si alloy microparticles synthesized by two methods
  13. Bioencapsulation of living yeast ( Pichia pastoris ) with silica after transformation with lysozyme gene
  14. Optical properties of yellow-light-emitting LiZnVO 4 :Eu 3+ phosphor prepared by sol–gel method
  15. CuAl 2 O 4 powder synthesis by sol-gel method and its photodegradation property under visible light irradiation
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  18. Effect of sulphate groups on catalytic properties of chromium supported by zirconia in the n -hexane aromatization
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  23. A new surface modification method to improve the dispersity of nano-silica in organic solvents
  24. Synthesis of BiFeO 3 nanoparticles with small size
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