Cooperative Energy Transfer Up-/Down-Conversion Luminescence in Tb3+/Yb3+ Co-Doped Cubic Na5Lu9F32 Single Crystals by Gd3+ Co-Doping

2017 ◽  
Vol 17 (6) ◽  
pp. 3163-3169 ◽  
Author(s):  
Shinan He ◽  
Haiping Xia ◽  
Qingyang Tang ◽  
Qiguo Sheng ◽  
Jianli Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Single Crystals ◽  
Co Doping ◽  
Down Conversion ◽  
Co Doped ◽  
Cooperative Energy

Cooperative Energy Transfer of Er-Gd-Tb System in Tb3+, Er3+ Co-Doped K2GdZr(PO4)3 as a Potential Visible Quantum Cutting Phosphor

2014 ◽  
Vol 936 ◽  
pp. 585-590 ◽  
Author(s):  
Liang Feng Niu ◽  
Wei Liang ◽  
Chang Zeng Wu ◽  
Yu Hua Wang
Keyword(s):  
Energy Transfer ◽  
Ultra Violet ◽  
Solid State Reaction Method ◽  
Practical Application ◽  
Energy Transfers ◽  
Quantum Cutting ◽  
Down Conversion ◽  
Vacuum Ultra Violet ◽  
Co Doped ◽  
Cooperative Energy

Tb3+, Er3+co-doped K2GdZr (PO4)3samples were prepared by solid-state reaction method and their photoluminescence (PL) properties were investigated in ultra-violet (UV) and vacuum ultra-violet (VUV) region. The results indicate that the energy transfers from Er3+to Gd3+and from Gd3+to Tb3+required for occurring of visible quantum cutting through down-conversion are efficient. In this cooperative energy transfer process, Gd3+is used as an intermediate of energy transfer between Er3+and Tb3+. The optimal quantum efficiency (QE) of this co-doped system K2GdZr (PO4)3: Er3+, Tb3+phosphor reached to 110%, suggesting a potential visible quantum cutting phosphor in practical application.

scholarly journals Superconductivity in Cu Co-Doped SrxBi2Se3 Single Crystals

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3899 ◽  
Author(s):  
Aleksandr Yu. Kuntsevich ◽  
Victor P. Martovitskii ◽  
George V. Rybalchenko ◽  
Yuri G. Selivanov ◽  
Mikhail I. Bannikov ◽  
...  
Keyword(s):  
Critical Temperature ◽  
Transport Properties ◽  
Single Crystals ◽  
Electron Density ◽  
Doping Level ◽  
Carrier Density ◽  
Host Matrix ◽  
Topological Superconductor ◽  
Co Doping ◽  
Co Doped

In this study, we grew Cu co-doped single crystals of a topological superconductor candidate Sr x Bi 2 Se 3 , and studied their structural and transport properties. We reveal that the addition of even as small an amount of Cu co-dopant as 0.6 atomic %, completely suppresses superconductivity in Sr x Bi 2 Se 3 . Critical temperature (∼2.7 K) is rather robust with respect to co-doping. We show that Cu systematically increases the electron density and lattice parameters a and c. Our results demonstrate that superconductivity in Sr x Bi 2 Se 3 -based materials is induced by significantly lower Sr doping level x < 0.02 than commonly accepted x ∼ 0.06 , and it strongly depends on the specific arrangement of Sr atoms in the host matrix. The critical temperature in superconductive Sr-doped Bi 2 Se 3 is shown to be insensitive to carrier density.

Cooperative energy transfer in Tm3+ and Yb3+ co-doped phosphate glasses

2013 ◽  
Vol 31 (2) ◽  
pp. 164-168 ◽  
Author(s):  
Bo XU ◽  
Bin YANG ◽  
Yuepin ZHANG ◽  
Haiping XIA ◽  
Jinhao WANG
Keyword(s):  
Energy Transfer ◽  
Phosphate Glasses ◽  
Co Doped ◽  
Cooperative Energy

Mechanistic investigation on up and down conversion of Er3+ and Gd3+ co-doped YTiNbO6 phosphors

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 94607-94614 ◽  
Author(s):  
Zhichao Yu ◽  
Guangjun Zhou ◽  
Juan Zhou ◽  
Haifeng Zhou ◽  
Peng Kong ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Processes ◽  
Mechanistic Investigation ◽  
Down Conversion ◽  
Co Doped

The present work focuses on the up and down conversion of YNbTiO6 with different quenching concentrations of Er3+ and Gd3+ as well as the energy transfer processes.

1.8 μm luminescent properties and energy transfer of Yb3+/Tm3+ co-doped α-NaYF4 single crystals

2016 ◽  
Vol 680 ◽  
pp. 26-30 ◽  
Author(s):  
Zhigang Feng ◽  
Haiping Xia ◽  
Cheng Wang ◽  
Zhixiong Zhang ◽  
Dongsheng Jiang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Single Crystals ◽  
Luminescent Properties ◽  
Co Doped

Near-infrared down-conversion in Er3+–Yb3+ co-doped transparent nanostructured glass ceramics for crystalline silicon solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 4085-4089 ◽  
Author(s):  
Yuping Tai ◽  
Hanying Wang ◽  
Hui Wang ◽  
Jintao Bai
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Crystalline Silicon ◽  
Glass Ceramics ◽  
Silicon Solar Cells ◽  
Transparent Glass ◽  
Crystalline Silicon Solar Cells ◽  
Down Conversion ◽  
Visible Photon ◽  
Co Doped

A two-step energy transfer was achieved in Er3+–Yb3+ co-doped transparent glass ceramics containing CaF2 nanocrystals, which involved down-conversion of an absorbed visible photon to two emitted near-infrared photons.

Cooperative Energy Transfer Up-Conversion and Quantum Cutting Down-Conversion in Yb3+:TbF3 Nanocrystals Embedded Glass Ceramics

2009 ◽  
Vol 113 (16) ◽  
pp. 6406-6410 ◽  
Author(s):  
Daqin Chen ◽  
Yunlong Yu ◽  
Yuansheng Wang ◽  
Ping Huang ◽  
Fangyi Weng
Keyword(s):  
Energy Transfer ◽  
Glass Ceramics ◽  
Quantum Cutting ◽  
Down Conversion ◽  
Cooperative Energy
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