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Paper Titles
Preface
Synthesis and Luminescent Properties of TiO2 Materials Single and Triple Doped with Rare Earth Ions (Sm3+ , Tb 3+ and Eu 3+)
p.3
Energy Transfer of a New Self-Activating Ba3TaGa3Si2O14: ySm3+, xNb5+ Phosphor Obtained by a Small Substitution of Nb5+ for Ta5+
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Luminescence Properties of Cs3Cu2I5 Phosphors Powder with Solid State Method
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Nonlinear Excitation of Color Centers in a LiF Crystal by Femtosecond Laser Radiation
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Flame Front Model with the Clusters Condensation
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Thermodynamic Calculations of the Main Characteristics of the Combustion Process of Pyrotechnic Nitrate-Metallized Mixtures with Additives of Organic and Inorganic Substances under External Thermal Influences
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Assessment of the Influence of Features of Crack Formation in Reinforced Concrete Products on their Fire Resistance
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Justification of the Efficiency of Application of Plaster for Fire Protection of Concrete Structures
p.69

Energy Transfer of a New Self-Activating Ba3TaGa3Si2O14: ySm3+, xNb5+ Phosphor Obtained by a Small Substitution of Nb5+ for Ta5+

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Abstract:

Self-activated multicolor phosphors are being used in more and more emerging fields. In order to explore the energy transfer between [NbO6]7- coordination groups and Sm3+ ions, a series of Ba3-ySmyTa1-xNbxGa3Si2O14 samples co-doped with Nb5+ and Sm3+ were prepared in this work, and the changes of luminous intensity under the condition of fixed Nb5+ concentration regulating Sm3+ concentration and fixed Sm3+ concentration regulating Nb5+ concentration were obtained respectively. By further fitting the emission decay curves of Sm3+ under two conditions, the decreasing average lifetime is obtained. Thermal stability tests of the samples also hinted the presence of such energy transfer. This regular change can provide a good reference for developing new self-activated phosphors.

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Periodical:

Defect and Diffusion Forum (Volume 437)

Pages:

13-19

DOI:

https://doi.org/10.4028/p-EypZ30

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Online since:

October 2024

Authors:

Xue Lian Zhou, Kai Xuan Wang, Yu Zhang, Ze Wang, Su Rilige, Qi Xu Tian, Halamuji Halamuji, Ke Fu Chao*

Keywords:

[NbO6]7-, Ba3TaGa3Si2O14, Energy Transfer, Self-Activated Phosphor, Sm3+ Doping

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© 2024 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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