Red Emission Properties of Eu3+ doped GaN Powders Prepared by a Na Flux Method

2008 ◽  
Author(s):  
Ei Brown ◽  
Uwe Hommerich ◽  
Takahiro Yamada ◽  
Hisanori Yamane ◽  
John M. Zavada
Keyword(s):  
Flux Method ◽  
Red Emission ◽  
Emission Properties

VUV-Photoluminescence Properties of (Gd, La)2O2CO3: Eu3+

2014 ◽  
Vol 1052 ◽  
pp. 203-206
Author(s):  
Zhi Long Wang ◽  
Shi Qin Wang ◽  
Nin Yao ◽  
Xing Min Wei
Keyword(s):  
Charge Transfer ◽  
Vacuum Ultraviolet ◽  
Charge Transfer Band ◽  
Broad Band ◽  
Photoluminescence Properties ◽  
Flux Method ◽  
Excitation Spectra ◽  
Red Emission ◽  
Ultraviolet Excitation

(Gd,La)2-x O2CO3:Eux3+(0.01 ≤x≤0.04) were synthesized via a flux method at 400°C, and their photoluminescence properties under vacuum ultraviolet (VUV) excitation were examined. The excitation spectra showed two bands in the region from 125 nm to 300 nm, the first band centered at 190 nm was ascribed to absorption of related CO32- complex, and the second broad band centered at 246nm and 278nm in Gd2O2CO3:Eu3+ was ascribed to the charge transfer band of O2-→ Eu3+. Series samples exhibited red emission at around 611 nm under vacuum ultraviolet excitation corresponding to the 5D0→ 7F2.transition of Eu3+.

Europium-doped LaF3nanocrystals with organic 9-oxidophenalenone capping ligands that display visible light excitable steady-state blue and time-delayed red emission

2015 ◽  
Vol 44 (7) ◽  
pp. 3082-3091 ◽  
Author(s):  
Mir Irfanullah ◽  
Dharmendar Kumar Sharma ◽  
Ramya Chulliyil ◽  
Arindam Chowdhury
Keyword(s):  
Steady State ◽  
Visible Light ◽  
Red Emission ◽  
Emission Properties ◽  
Capping Ligands

Visible light excitable 9-oxidophenalenone-coated LaF3:Eu NCs display steady-state blue and time-delayed red emission; capping ligands act as probes to reveal three different Eu3+sites with distinct emission properties.

Red Emission Properties of YNbO4:Eu3+ Phosphors Under Near UV Excitation

2019 ◽  
Vol 19 (12) ◽  
pp. 21-26
Author(s):  
Eun Young Lee ◽  
Young Jin Kim
Keyword(s):  
Red Emission ◽  
Emission Properties ◽  
Uv Excitation

Red-emission properties and crystallization behavior in Eu2O3-TeO2 glasses

2019 ◽  
Vol 505 ◽  
pp. 400-405 ◽  
Author(s):  
Kyong-Soo Hong ◽  
Miae Kim ◽  
Myoung Gyu Ha ◽  
Jong Pil Kim ◽  
Jang-Hee Yoon ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Red Emission ◽  
Emission Properties

Effect of Er and Yb Doping Concentration on the Luminescent Properties of Y2O2S:Yb, Er Phosphors

2010 ◽  
Vol 663-665 ◽  
pp. 381-384
Author(s):  
Peng De Han ◽  
Le Zhang ◽  
Yan Chen ◽  
Li Xi Wang ◽  
Qi Tu Zhang
Keyword(s):  
Emission Intensity ◽  
Doping Concentration ◽  
Luminescent Properties ◽  
Luminescent Materials ◽  
Luminescent Intensity ◽  
Flux Method ◽  
Red Emission

Up-conversion luminescent materials of Y2O2S:Yb, Er with different doping concentrations of Er3+ ion (1 mol%–6 mol%) and Yb3+ ion (4 mol%–16 mol%) were prepared by flux method. As Yb3+ doping concentration was fixed at 8 mol%, when Er3+ doping concentration was 2 mol%, the green and red up-conversion luminescent intensity reached the maximum. As Er3+ doping concentration was fixed at 2 mol%, when Yb3+ doping concentration was 4 mol%, the green and red emission intensity reached the maximum. The up-conversion luminescent colours were adjustable.

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