Temperature-induced 1D lanthanide polymeric frameworks based on Lnn (n = 2, 2, 4, 6) cores: synthesis, crystal structures and luminescence properties

2016 ◽  
Vol 45 (7) ◽  
pp. 2924-2935 ◽  
Author(s):  
Jia-Jia Li ◽  
Ting-Ting Fan ◽  
Xiang-Long Qu ◽  
Hong-Liang Han ◽  
Xia Li
Keyword(s):  
Fluorescence Quenching ◽  
Crystal Structures ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Quenching Mechanism ◽  
Fluorescence Quenching Mechanism

1D lanthanide polymeric frameworks were synthesized. White-light emission by two-/three-component complexes was realized. A Eu(iii)-complex could detect nitrobenzene and Ni2+ ion via a fluorescence quenching mechanism.

Lanthanide coordination frameworks constructed from 3,3′,4,4′-diphenylsulfonetetracarboxylic and 1,10-phenanthroline: synthesis, crystal structures and luminescence properties

2016 ◽  
Vol 45 (39) ◽  
pp. 15436-15444 ◽  
Author(s):  
Chuan-Ti Li ◽  
Yi-Fan Zhao ◽  
Huai-Ming Hu ◽  
Hui Zhao ◽  
Xiaofang Wang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Highly Sensitive ◽  
Coordination Frameworks

Tb3+-Doped Eu3+ MOFs exhibit efficient white light emission and Tb-MOF displays a highly sensitive response toward Fe3+ ions.

Tunable luminescence from Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses for white light emission

2009 ◽  
Vol 24 (5) ◽  
pp. 1730-1734 ◽  
Author(s):  
Hucheng Yang ◽  
G. Lakshminarayana ◽  
Yu Teng ◽  
Shifeng Zhou ◽  
Jianrong Qiu
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Spectral Properties ◽  
Light Emission ◽  
Light Emitting Diode ◽  
Fluorescence Decay ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Luminescence Efficiency

Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses were prepared and their luminescence properties were characterized. Blue-cyan to orange-red tunable luminescence was observed from these glasses with different excitation wavelengths ranging from 385 to 410 nm. White light emission with internal luminescence efficiency 42% has been observed using commercially available purple light-emitting-diode excitation. The energy transfer between Ce3+ and Sm3+ has also been investigated from fluorescence decay curves and spectral properties.

Improving the luminescence performance of quantum dot-based photonic crystals for white-light emission

2016 ◽  
Vol 4 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Heng Li ◽  
Zhaohua Xu ◽  
Bin Bao ◽  
Ning Sun ◽  
Yanlin Song
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Photonic Crystals ◽  
Quantum Dot ◽  
Crystal Structures ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Bright White Light ◽  
Luminescence Performance

A very bright white light was obtained by combining the advantages of red, green and blue quantum dots with photonic crystal structures.

Novel core–shell structure microspheres based on lanthanide complexes for white-light emission and fluorescence sensing

2016 ◽  
Vol 45 (6) ◽  
pp. 2666-2673 ◽  
Author(s):  
Xiao Lian ◽  
Bing Yan
Keyword(s):  
White Light ◽  
Shell Structure ◽  
Lanthanide Complexes ◽  
Light Emission ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Core Shell ◽  
Fluorescence Sensing ◽  
Core Shell Structure

A series of core–shell structure materials based on Ln-dpa complex and silica are prepared and the complex coating are generated on the surface of silica pheres successfully. The SiO2@Ln-dpa exhibits excellent luminescence properties. Furthermore, SiO2@Eu-dpa possesses highly selective and sensitive for acetone and Cu2+.

Solvothermal Synthesis and Luminescence Properties of BaCeF5, and BaCeF5: Tb3+, Sm3+ Nanocrystals: An Approach for White Light Emission

2012 ◽  
Vol 116 (36) ◽  
pp. 19597-19603 ◽  
Author(s):  
Tianqi Sheng ◽  
Zuoling Fu ◽  
Xiaojie Wang ◽  
Shihong Zhou ◽  
Siyuan Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Solvothermal Synthesis ◽  
Light Emission ◽  
White Light Emission ◽  
Luminescence Properties

scholarly journals High Thermal Stability Apatite Phosphors Ca2La8(SiO4)6O2:Dy3+/Sm3+ for White Light Emission: Synthesis, Structure, Luminescence Properties and Energy Transfer

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ning Liu ◽  
Lefu Mei ◽  
Libing Liao ◽  
Jie Fu ◽  
Dan Yang
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
White Light ◽  
Single Phase ◽  
Light Emission ◽  
High Thermal Stability ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Potential Candidate ◽  
Co Doped

Abstract What ideal w-LED phosphors always aim to do is to achieve a single phase near-sunlight emission phosphor simultaneously with both high luminescence efficiency and high thermal stability at operation temperature. And It is well known that apatite compound phosphors are one of the most promising optical materials to realize those above because of their unique structure enhanced luminescence properties and thermal stability. Here, we synthesized a co-doped single phase apatite phosphors Ca2La8(SiO4)6O2:Dy3+/Sm3+ (CLSO:Dy3+/Sm3+) for white light emission, which was provided with excellent thermal stability and of which luminescence intensity at 150 °C still was 92 percentage of that at room temperature. Moreover, X-ray diffraction technique, Fourier transform infrared spectroscopy, scanning electron microscope were employed to characterization of phase structure and morphology, and consequently pure apatite structure and gravel-like morphology of phosphors were proved. Analysis of photoluminescence spectra indicated that concentration quenching effect exist in single-doped CLSO:Dy3+ phosphors owing to dipole-dipole interaction between Dy3+ ions. It is revealed that maybe exist Dy3+ ↔ Sm3+ bilateral non-radiative energy transfer processes in Dy3+/Sm3+ co-doped CLSO system by PL spectra and decay curves. And variation of Sm3+ ion concentration can control color emission, namely CIE chromaticity coordinates and correlated color temperature, finally to achieve white light emission (0.309,0.309) with CCT 6848 K, able to be a potential candidate for commercial lighting applications.

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