Energy transfer, multi-colour emission and high thermal stability behaviour of K2Tb1−xEuxHf(PO4)3 with langbeinite-type structure

CrystEngComm ◽  
2020 ◽  
Vol 22 (29) ◽  
pp. 4914-4922 ◽  
Author(s):  
Dan Zhao ◽  
Shi-Rui Zhang ◽  
Rui-Juan Zhang ◽  
Yan-Ping Fan ◽  
Bao-Zhong Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Energy Transfer ◽  
High Thermal Stability ◽  
Type Structure ◽  
Stability Behaviour ◽  
Color Emission

This study provides a new series of solid solution phosphors, K2Tb1−xEuxHf(PO4)3, with multi-color emission evolution and high thermal stability for LED lamps.

Efficient and controllable photoluminescence in novel solid solution Ca1−xSrxHf4(PO4)6:Eu2+ phosphors with high thermal stability for white light emitting diodes

CrystEngComm ◽  
2018 ◽  
Vol 20 (31) ◽  
pp. 4383-4394 ◽  
Author(s):  
Shuangyu Xin ◽  
Miao Gao ◽  
Chuang Wang ◽  
Xuejiao Wang ◽  
Ge Zhu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Quantum Efficiency ◽  
White Light ◽  
Light Emitting Diodes ◽  
High Thermal Stability ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
White Light Emitting Diodes

The tunable photoluminescence properties of (Ca,Sr)Hf4(PO4)6:Eu2+ solid solution phosphors with high thermal stability and quantum efficiency were investigated.

Phase-formations of Mg2P2O7–Mn2P2O7 mixed pyrophosphates and their desired luminescence abilities

2021 ◽  
Author(s):  
Donglei Wei ◽  
Hyo Jin Seo
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Phase Formation ◽  
High Thermal Stability

Phase-formation and luminescence depend on the Mn2+ contents in Mg2P2O7–Mn2P2O7 solid-solution. The mixed pyrophosphate of α- and β-phases shows the best luminescence, high thermal stability and efficient excitation in UV and near UV region.

Achieving high thermal stability of different rare-earth ions in a single matrix host via the manipulation of the local structure by a solid solution

2020 ◽  
Vol 22 (28) ◽  
pp. 16294-16300
Author(s):  
Xiuxia Yang ◽  
Lei Zhao ◽  
Zhichao Liu ◽  
Shuyu Tian ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Rare Earth ◽  
Local Structure ◽  
Local Environment ◽  
High Thermal Stability ◽  
Rare Earth Ions ◽  
Single Matrix ◽  
Thermal Stability Of

Manipulating the local environment of CAS by substitution of Al3+–Y3+ for Si4+–Ca2+ to achieve more stability in the structure of CYA.

High thermal stability and low dielectric loss of BaTiO 3 -Bi(Li 1/3 Zr 2/3 )O 3 solid solution

2017 ◽  
Vol 43 (1) ◽  
pp. 926-929 ◽  
Author(s):  
Xiuli Chen ◽  
Guisheng Huang ◽  
Dandan Ma ◽  
Gaofeng Liu ◽  
Huanfu Zhou
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Dielectric Loss ◽  
High Thermal Stability ◽  
Low Dielectric

High thermal stability and colossal permittivity of novel solid solution LaFeO3/CaTiO3

2021 ◽  
Vol 257 ◽  
pp. 123239 ◽  
Author(s):  
S.J.T. Vasconcelos ◽  
M.A.S. Silva ◽  
R.G.M. de Oliveira ◽  
M.H. Bezerra Junior ◽  
H.D. de Andrade ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
High Thermal Stability ◽  
Colossal Permittivity

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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