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

Tunable white-light emission and energy transfer in single-phase Bi3+,Eu3+ co-doped Ba9Y2Si6O24 phosphors for UV w-LEDs

2019 ◽  
Vol 213 ◽  
pp. 494-503 ◽  
Author(s):  
Hai Guo ◽  
Zhigang Zheng ◽  
Liming Teng ◽  
Rongfei Wei ◽  
Fangfang Hu
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Single Phase ◽  
Light Emission ◽  
White Light Emission ◽  
Co Doped

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.

Temperature dependence of white light emission and energy transfer in Dy3+ and Tm3+ co-doped LiNbO3 single crystals

2017 ◽  
Vol 192 ◽  
pp. 728-733 ◽  
Author(s):  
Siwei Long ◽  
Decai Ma ◽  
Yunzhong Zhu ◽  
MingMing Yang ◽  
Shaopeng Lin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Temperature Dependence ◽  
Single Crystals ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Co Doped

White light emission through energy transfer processes in barium gallo-germanate glasses co-doped with Dy3+-Ln3+ (Ln =Ce, Tm)

2019 ◽  
Vol 87 ◽  
pp. 63-69 ◽  
Author(s):  
Marta Sołtys ◽  
Agata Górny ◽  
Lidia Zur ◽  
Maurizio Ferrari ◽  
Giancarlo C. Righini ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Transfer Processes ◽  
Co Doped ◽  
Germanate Glasses

Energy transfer and white light emission of KGdF4 polycrystalline co-doped with Tb3+/Sm3+ ions

2019 ◽  
Vol 92 ◽  
pp. 174-180 ◽  
Author(s):  
Phan Van Do ◽  
Vu Xuan Quang ◽  
Luong Duy Thanh ◽  
Vu Phi Tuyen ◽  
Nguyen Xuan Ca ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Co Doped

White light emission and energy transfer in Dy3+/Eu3+ co-doped aluminoborate glass

2012 ◽  
Vol 34 (7) ◽  
pp. 1112-1115 ◽  
Author(s):  
Jia-li Cai ◽  
Ruo-ying Li ◽  
Chong-jian Zhao ◽  
Shao-long Tie ◽  
Xia Wan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Aluminoborate Glass ◽  
Co Doped
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