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

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.

Co-substitution in Ca1−xYxAl12−xMgxO19phosphors: local structure evolution, photoluminescence tuning and application for plant growth LEDs

2018 ◽  
Vol 6 (15) ◽  
pp. 4217-4224 ◽  
Author(s):  
Yinjian Zheng ◽  
Haiming Zhang ◽  
Haoran Zhang ◽  
Zhiguo Xia ◽  
Yingliang Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Plant Growth ◽  
Local Structure ◽  
Sole Source ◽  
Solid State Reaction Method ◽  
Structure Evolution ◽  
Red Emission ◽  
Reaction Method ◽  
Lighting Systems ◽  
Uv Excitation

Compounds prepared using a high-temperature solid-state reaction method exhibit red to far-red emission under UV excitation. Therefore, these compounds have potential as supplemental or sole-source lighting systems for plant growth.

scholarly journals Smart Mn7+ Sensing via Quenching on Dual Fluorescence of Eu3+ Complex-Modified TiO2 Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3283
Author(s):  
Wenbin Yang ◽  
Siqi Niu ◽  
Yao Wang ◽  
Linjun Huang ◽  
Shichao Wang ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Fluorescence Intensity ◽  
Solvothermal Method ◽  
Structural Deformation ◽  
Fluorescence Intensity Ratio ◽  
Dual Fluorescence ◽  
Red Emission ◽  
Sensing System ◽  
Uv Visible ◽  
Uv Excitation

In this work, titania (TiO2) nanoparticles modified by Eu(TTA)3Phen complexes (ETP) were prepared by a simple solvothermal method developing a fluorescence Mn7+ pollutant sensing system. The characterization results indicate that the ETP cause structural deformation and redshifts of the UV-visible light absorptions of host TiO2 nanoparticles. The ETP also reduce the crystallinity and crystallite size of TiO2 nanoparticles. Compared with TiO2 nanoparticles modified with Eu3+ (TiO2-Eu3+), TiO2 nanoparticles modified with ETP (TiO2-ETP) exhibit significantly stronger photoluminescence under the excitation of 394 nm. Under UV excitation, TiO2-ETP nanoparticles showed blue and red emission corresponding to TiO2 and Eu3+. In addition, as the concentration of ETP in TiO2 nanoparticles increases, the PL intensity at 612 nm also increases. When ETP-modified TiO2 nanoparticles are added to an aqueous solution containing Mn7+, the fluorescence intensity of both TiO2 and ETP decreases. The evolution of the fluorescence intensity ratio (I1/I2) of TiO2 and ETP is linearly related to the concentration of Mn7+. The sensitivity of fluorescence intensity to Mn7+ concentration enables the design of dual fluorescence ratio solid particle sensors. The method proposed here is simple, accurate, efficient, and not affected by the environmental conditions.

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

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
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