Controllable luminescence and efficient energy transfer investigation of a novel white light emission phosphor Ca19Na2Mg(PO4)14: Dy3+, Tm3+ with high thermal stability

2020 ◽  
pp. 119181
Author(s):  
Heng Dai ◽  
Zhuowei Li ◽  
Miao Gao ◽  
Yuehui Yan ◽  
Chuang Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
White Light ◽  
Light Emission ◽  
High Thermal Stability ◽  
White Light Emission ◽  
Efficient Energy Transfer ◽  
Efficient Energy

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.

White light emitting MgAl2O4:Dy3+,Eu3+ nanophosphor for multifunctional applications

2018 ◽  
Vol 47 (35) ◽  
pp. 12228-12242 ◽  
Author(s):  
Karamjyoti Panigrahi ◽  
Subhajit Saha ◽  
Sumanta Sain ◽  
Rituparna Chatterjee ◽  
Antika Das ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Thermal Behaviour ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Efficient Energy Transfer ◽  
Light Emitting ◽  
Efficient Energy

An efficient energy transfer from Dy3+ to Eu3+ in MgAl2O4 offers white light emission and self-referencing thermal behaviour.

A color tunable and white light emitting Ca2Si5N8:Ce3+,Eu2+ phosphor via efficient energy transfer for near-UV white LEDs

2018 ◽  
Vol 47 (19) ◽  
pp. 6860-6867 ◽  
Author(s):  
Chao Li ◽  
Hongwei Zheng ◽  
Hengwei Wei ◽  
Shijie Qiu ◽  
Ling Xu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Single Phase ◽  
Light Emission ◽  
Efficient Energy Transfer ◽  
Light Emitting ◽  
White Leds ◽  
Efficient Energy ◽  
Challenging Issue ◽  
Color Tunable

Achieving tunable color and white light emission in a single phase phosphor is a challenging issue.

Photoluminescence properties and energy transfer in a novel Sr8ZnY(PO4)7:Tb3+,Eu3+ phosphor with high thermal stability and its great potential for application in warm white light emitting diodes

2019 ◽  
Vol 7 (10) ◽  
pp. 2927-2935 ◽  
Author(s):  
Mao Xia ◽  
Xianbo Wu ◽  
Yuan Zhong ◽  
H. T. (Bert) Hintzen ◽  
Zhi Zhou ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emission ◽  
High Thermal Stability ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes

Energy transfer from Tb3+ to Eu3+ was observed and verified in a warm white light emission phosphor SZYP:Tb3+,Eu3+ with high thermal stability.

Tunable White-Light Emission of Co2+ and Mn2+ Co-Doped ZnS Nanoparticles by Energy Transfer between Dopant Ions

2020 ◽  
Vol 124 (6) ◽  
pp. 3857-3866 ◽  
Author(s):  
G. Saavedra-Rodriguez ◽  
U. Pal ◽  
R. Sánchez-Zeferino ◽  
M. E. Álvarez-Ramos
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Zns Nanoparticles ◽  
Co Doped

White light emission from a two-component hybrid gel via an energy transfer process

2015 ◽  
Vol 17 (48) ◽  
pp. 32297-32303 ◽  
Author(s):  
Xinhua Cao ◽  
Haichuang Lan ◽  
Zhenhua Li ◽  
Yueyuan Mao ◽  
Liming Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
White Light ◽  
Light Emission ◽  
Light Harvesting ◽  
Energy Transfer Process ◽  
White Light Emission ◽  
Light Emitting ◽  
Hybrid Gel ◽  
Two Component

A two-component light-harvesting organogel containing a naphthalimide-based gelator as a donor and a phosphorescent Ir(iii) complex as an acceptor was used to produce white-light-emitting organogels.

Utilizing an effective framework to dye energy transfer in a carbazole-based metal–organic framework for high performance white light emission tuning

2018 ◽  
Vol 5 (11) ◽  
pp. 2868-2874 ◽  
Author(s):  
Yu-Pei Xia ◽  
Chen-Xue Wang ◽  
Lian-Cai An ◽  
Da-Shuai Zhang ◽  
Tong-Liang Hu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
High Performance ◽  
Light Emission ◽  
Metal Organic Framework ◽  
White Light Emission ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Light Emitting ◽  
Metal Organic

By introducing dyes into a MOF, a white-light-emitting luminophor was obtained based on effective framework to dye energy transfer mechanism.

Sign in / Sign up

Export Citation Format

Share Document