Preparation of Tb (III) Complex Material with 1-acetyl-2-naphthol-4, 4'-diaminodiphenyl Ether

2011 ◽  
Vol 366 ◽  
pp. 157-160
Author(s):  
Li Hua Wang
Keyword(s):  
Energy Transfer ◽  
Organic Solvents ◽  
Transfer Process ◽  
Energy Transfer Process ◽  
Luminescent Properties ◽  
Fluorescent Property ◽  
Complex Material

A new Tb (III) complex material was synthesized from Tb(NO3)3•6H2O and 1-acetyl-2-naphthol-4, 4'-diaminodiphenyl ether. The infrared characterization and luminescent properties of the Tb (III) complex material were studied. Based on the fluorescent property, the Tb (III) complex material can only emit the fluorescence of the ligand, but not emit the characteristic fluorescence of Tb (III) ion in solid and in organic solvents. This indicates that the energy transfer process between the ligand and Tb (III) ion is ineffective.

REMO4 (RE = Y, Gd; M = Nb, Ta) phosphors from hybrid precursors: Microstructure and luminescence

2008 ◽  
Vol 23 (3) ◽  
pp. 679-687 ◽  
Author(s):  
Xiuzhen Xiao ◽  
Bing Yan
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
Energy Transfer Process ◽  
Luminescent Properties ◽  
Concentration Quenching ◽  
Emission Lines ◽  
Rare Earth Ion ◽  
Red Emission ◽  
Characteristic Emission

In this paper, YNbO4:0.05Tb3+ and GdTaO4:0.05Eu3+ phosphors were chosen to study the influence of the firing temperature on the phase and morphologies using novel modified in situ chemical coprecipitation technology. Results show that until the temperature reaches 1000 °C, the formation of YNbO4 and GdTaO4 were realized; with the increasing firing temperatures, those samples present better crystalline structure and better morphologies. The luminescent properties of Eu3+ and Tb3+ have shown that after calcinations at 1000 °C, the intensity of Eu3+ and Tb3+ increases strongly with the increasing of the calcinations temperature, while remaining relatively unchanged at the temperatures ranging between 600 and 800 °C. Furthermore, other rare earth ion doped GdTaO4 and Y1−xGdxTaO4:5 mol% Eu3+ with the different yttrium content were also synthesized after calcinating at the preferable temperature using the same method. The photoluminescence of Y1−xGdxTaO4:5 mol% Eu3+ revealed that the red emission intensity of Eu3+ increases with the increasing of gadolinium content, indicating that Gd ion plays an important role in the energy transfer process. Also, the concentration quenching has been studied in the GdTaO4:Eu3+/Dy3+ systems. Moreover, the characteristic emission lines of Tb3+, Pr3+, and Er3+ in GdTaO4 were observed, showing that the energy transfer process appears between host and those activators.

Influence of silicate sol–gel host matrices and catalyst agents on the luminescent properties of Eu3+/Gd3+ under different excitation wavelengths

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 98773-98782 ◽  
Author(s):  
B. Szpikowska-Sroka ◽  
N. Pawlik ◽  
T. Goryczka ◽  
W. A. Pisarski
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
Energy Transfer Process ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Silicate Glasses ◽  
Matrix Composition ◽  
The Matrix ◽  
Host Matrices ◽  
Co Doped

Sol–gel silicate glasses co-doped with Gd3+ and Eu3+ ions were successfully obtained and the pronounced effect of the matrix composition on the luminescent properties and energy transfer process from Gd3+ to Eu3+ was confirmed.

Heat, quantum mechanics and information

2015 ◽  
Vol 10 (2) ◽  
pp. 2692-2695
Author(s):  
Bhekuzulu Khumalo
Keyword(s):  
Information Theory ◽  
Quantum Mechanics ◽  
Energy Transfer ◽  
Transfer Process ◽  
Energy Transfer Process ◽  
Process Information ◽  
Double Slit Experiment ◽  
Slit Experiment ◽  
Double Slit

Heat has often been described as part of the energy transfer process. Information theory says everything is information. If everything is information then what type of information is heat, this question can be settled by the double slit experiment, but we must know what we are looking for. 

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.

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