Synthesis and Fluorescence Properties of a Terbium Complex with Ferrocenylazobenzoic Acid in Nanoparticles

2017 ◽  
Vol 898 ◽  
pp. 1850-1856 ◽  
Author(s):  
Yu Guang Lv ◽  
Bo Wang ◽  
Yu Shan Qin ◽  
Xiao Li Qi ◽  
Shan Shan Song ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Energy Transfer Process ◽  
Uv Spectroscopy ◽  
Green Emission ◽  
Terbium Complex ◽  
Efficient Energy Transfer ◽  
Luminescence Efficiency ◽  
Pyridinedicarboxylic Acid ◽  
Electroluminescence Device ◽  
Terbium Complexes

Tb (AUFA)32H2O, a rare earth terbium complex,was synthesized by introducing 4-(11-azobenzene-undecyloxy) ferrocene acid (AUFA) as the ligand. This complex was characterized by elemental analysis, MS, IR, Raman, UV spectroscopy and fluorescence spectrophotometry. The complex exhibited ligand-sensitized green emission, and Tb (AUFA)32H2O had a higher sensitized luminescence efficiency and a longer lifetime than the other terbium complexes (DPC: 2, 6-Pyridinedicarboxylic acid, Aspirin: 2-ethanoylhydroxybenzoic acid). The organic-inorganic thin film of complexe Tb (AUFA)32H2O in nanoTiO2 was fabricated, and the nanoTiO2 has been used in the luminescence layer to change the luminescence property of complexes Tb (AUFA)32H2O. It was found that there was an efficient energy transfer process between the ligands and metal ions. Moreover, In an ITO/PVK/Tb (AUFA)32H2O/Al device, Tb3+ may be excited by intramolecular energy transfer from the ligand, as observed by electroluminescence. The main emitting peak at 545 nm can be attributed to the 5D4→7F5 transition of the Tb3+ ion, and this process results in the enhancement of the green emission from the electroluminescence device.

Efficient energy transfer in a tri-chromophoric dyad containing BODIPYs and corrole based on a truxene platform

2018 ◽  
Vol 22 (09n10) ◽  
pp. 777-783 ◽  
Author(s):  
Jian Yang ◽  
Fang-Jian Cai ◽  
Xue-Mei Yuan ◽  
Ting Meng ◽  
Guo-Xiang Xin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Energy Transfer ◽  
Magnetic Resonance ◽  
Transfer Process ◽  
Electronic Excitation ◽  
Energy Transfer Process ◽  
Proton Nuclear Magnetic Resonance ◽  
Efficient Energy Transfer ◽  
Efficient Energy

A star-shaped molecule was designed and synthesized based on a known central truxene platform. Two BODIPY derivatives and one corrole macrocycle were introduced and connected to the 2, 7 and 12-positions of the truxene unit by Suzuki coupling. The dyad was fully characterized by UV-vis absorption, proton nuclear magnetic resonance, mass spectrometry. The direction of energy transfer upon electronic excitation was explored, and the star-shaped molecule system exhibits a highly efficient photoinduced energy transfer process from the excited BODIPY part to the corrole unit.

scholarly journals Tunable emission from green to red in the GdSr2AlO5:Tb3+,Eu3+ phosphor via efficient energy transfer

RSC Advances ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 3530-3535 ◽  
Author(s):  
Yu Zhang ◽  
Xuejie Zhang ◽  
Haoran Zhang ◽  
Lingling Zheng ◽  
Yuan Zeng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Emission Spectra ◽  
Green Emission ◽  
Efficient Energy Transfer ◽  
Red Emission ◽  
Efficient Energy ◽  
Tunable Emission ◽  
Variation Tendency

The emission spectra of GdSr2AlO5:2%Tb3+,x%Eu3+ (x = 0, 0.5, 1, 2, 3, and 5) under 275 nm excitation. (b) Variation tendency of the green emission of Tb3+ and the red emission of Eu3+.

Efficient Energy Transfer in Terbium Complexes/Porous Boron Nitride Hybrid Luminescent Materials

2017 ◽  
Vol 121 (36) ◽  
pp. 19915-19921 ◽  
Author(s):  
Xin He ◽  
Jing Lin ◽  
Wei Zhai ◽  
Yang Huang ◽  
Qiaoling Li ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Boron Nitride ◽  
Luminescent Materials ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Terbium Complexes

An efficient energy transfer process in Nd3+:Yb3+ co-doped SrF2 powders containing Al3+ and prepared by the combustion synthesis technique

2016 ◽  
Vol 4 (23) ◽  
pp. 5442-5447 ◽  
Author(s):  
Nikifor Rakov ◽  
Glauco S. Maciel
Keyword(s):  
Energy Transfer ◽  
Combustion Synthesis ◽  
Transfer Process ◽  
Near Infrared ◽  
Energy Transfer Process ◽  
Efficient Energy Transfer ◽  
Efficient Energy ◽  
Infrared Photon ◽  
Co Doped ◽  
Combustion Synthesis Technique

Near-infrared photon down-shifting via energy transfer from Nd3+ to Yb3+ in SrF2 crystalline powders prepared by combustion synthesis.

scholarly journals Enhanced luminescence of rare-earth Tb (III) obtained by mixing of Gd (III) in a fumarate complex and intra-molecular energy transfer

2015 ◽  
Vol 33 (4) ◽  
pp. 685-691 ◽  
Author(s):  
M.D. Shah ◽  
B. Want
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rare Earth ◽  
Green Emission ◽  
Lanthanide Ions ◽  
Luminescence Spectra ◽  
Mixed Complex ◽  
Energy Transfer Mechanism ◽  
Terbium Complex ◽  
Diffusion Technique

AbstractTrivalent lanthanide ions display fascinating optical properties. Therefore, the rare-earth complexes of terbium fumarate heptahydrate and GdTb fumarate heptahydrate were grown by using a single gel diffusion technique. The crystals were characterized by different physicochemical techniques of characterization. UV-Vis and photoluminescence spectrophotometric experiments were carried out to study the optical properties of the grown crystals. Under various excitations (339 nm, 350 nm or 368 nm) the terbium fumarate complex emitted characteristic (4f-4f) green emission of Tb3+ (5D4-7FJ, J = 6, 5, 4 and 3, respectively). Luminescence spectra showed that Gd3+ ions in the mixed complex have not affected the luminescence emission peak positions, but remarkably increased the luminescent intensities of the terbium complex. The energy-transfer mechanism between the ligand and the central Tb3+ ions and from the Gd3+ to the Tb3+ was discussed.

scholarly journals Luminescence Quenching Behavior of Hydrothermally Grown YVO4:Eu3+ Nanophosphor Excited under Low Temperature and Vacuum Ultra Violet Discharge

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3270
Author(s):  
Mihye Wu ◽  
Hyemin Park ◽  
Eun Gyu Lee ◽  
Sanghun Lee ◽  
Yu Jin Hong ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Low Temperature ◽  
Energy Transfer Process ◽  
Ultra Violet ◽  
Luminescence Quenching ◽  
Hydroxyl Groups ◽  
Hydrothermal Processing ◽  
Luminescence Efficiency ◽  
Post Annealing ◽  
Vacuum Ultra Violet

The luminescence quenching behavior and energy transfer process in hydrothermally grown Eu3+-doped YVO4 nanophosphors were studied using low temperature photoluminescence spectroscopy. The luminescence efficiency of nanophosphor is dependent on the acidity of its solution media and the post annealing condition after hydrothermal processing. The overall results suggest that the abnormal luminescence behavior of Eu3+-doped nanocrystalline YVO4 under low temperature photoexcitation is due to the incorporated non-radiative hydroxyl groups often encountered in hydrothermal synthesis as well as to the inefficient energy transfer to luminescent ions from vanadate groups.

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. 

Efficient artificial light-harvesting systems based on aggregation-induced emission constructed in supramolecular gels

Soft Matter ◽  
2021 ◽  
Author(s):  
Xinxian Ma ◽  
bo qiao ◽  
Jinlong Yue ◽  
JingJing Yu ◽  
yutao geng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rhodamine B ◽  
Fluorescent Dyes ◽  
Light Harvesting ◽  
Artificial Light ◽  
Efficient Energy Transfer ◽  
Aggregation Induced Emission ◽  
Efficient Energy ◽  
Harvesting Systems ◽  
Acyl Hydrazone

Based on a new designed acyl hydrazone gelator (G2), we developed an efficient energy transfer supramolecular organogel in glycol with two different hydrophobic fluorescent dyes rhodamine B (RhB) and acridine...

Sign in / Sign up

Export Citation Format

Share Document