A Highly Luminescent Europium Complex Showing Visible-Light-Sensitized Red Emission: Direct Observation of the Singlet Pathway

2004 ◽  
Vol 43 (38) ◽  
pp. 5010-5013 ◽  
Author(s):  
Chi Yang ◽  
Li-Min Fu ◽  
Yuan Wang ◽  
Jian-Ping Zhang ◽  
Wing-Tak Wong ◽  
...  
Keyword(s):  
Visible Light ◽  
Direct Observation ◽  
Europium Complex ◽  
Red Emission

A Highly Luminescent Europium Complex Showing Visible-Light-Sensitized Red Emission: Direct Observation of the Singlet Pathway

2004 ◽  
Vol 116 (38) ◽  
pp. 5120-5123 ◽  
Author(s):  
Chi Yang ◽  
Li-Min Fu ◽  
Yuan Wang ◽  
Jian-Ping Zhang ◽  
Wing-Tak Wong ◽  
...  
Keyword(s):  
Visible Light ◽  
Direct Observation ◽  
Europium Complex ◽  
Red Emission

scholarly journals Unprecedented Coordination-Induced Bright Red Emission from Group 12 Metal-Bound Triarylazoimidazoles

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1739
Author(s):  
Artyom A. Astafiev ◽  
Olga V. Repina ◽  
Boris S. Tupertsev ◽  
Alexey A. Nazarov ◽  
Maria R. Gonchar ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Complexes ◽  
Scientific Literature ◽  
Photo Luminescence ◽  
Red Emission ◽  
The Past ◽  
Highly Efficient ◽  
Luminescence Emission ◽  
New Family ◽  
Group 12

Arylazoimidazoles are important dyes which were intensively studied in the past. In contrast, triarylazoimidazoles (derivatives which carry aryl substituents at the imidazole core) received almost no attention in the scientific literature. Here, we report a new family of simple and easily accessible triarylazoimidazole-group 12 metal complexes, which feature highly efficient photo-luminescence emission (Φ up to  0.44). Novel compounds exhibit bright red emission in solution, which could be excited with a visible light.

Extending the excitation wavelength from UV to visible light for a europium complex-based mitochondria targetable luminescent probe for singlet oxygen

2018 ◽  
Vol 47 (37) ◽  
pp. 12852-12857 ◽  
Author(s):  
Hua Ma ◽  
Xin Wang ◽  
Bo Song ◽  
Liu Wang ◽  
Zhixin Tang ◽  
...  
Keyword(s):  
Visible Light ◽  
Singlet Oxygen ◽  
Europium Complex ◽  
Excitation Wavelength ◽  
Luminescent Probe ◽  
Luminescence Detection

A visible-light-excitable Eu3+ complex-based luminescent probe for the time-gated luminescence detection of singlet oxygen in vitro and in vivo.

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.

Efficient red emission from poly(vinyl butyral) films doped with a novel europium complex based on a terpyridyl ancillary ligand: synthesis, structural elucidation by Sparkle/RM1 calculation, and photophysical properties

2016 ◽  
Vol 7 (5) ◽  
pp. 1147-1157 ◽  
Author(s):  
Chaolong Yang ◽  
Shaojun Liu ◽  
Jing Xu ◽  
Youbing Li ◽  
Mingyong Shang ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Europium Complex ◽  
Structural Elucidation ◽  
Ancillary Ligand ◽  
Red Emission ◽  
Ligand Synthesis ◽  
Complex Polymer ◽  
Vinyl Butyral

The first example of doped Eu-complex/polymer fluorescent films based on a PVB matrix is reported.

Synthesis and Preparation of Eu(BA)3Phen and its Fluorescent Falsification-Resistant Screen Printing Ink

2015 ◽  
Vol 1096 ◽  
pp. 336-339
Author(s):  
Jie Meng
Keyword(s):  
Visible Light ◽  
Ultraviolet Light ◽  
Ir Spectrum ◽  
Screen Printing ◽  
Europium Complex ◽  
Fluorescent Properties ◽  
Uv Spectrum ◽  
Europium Ion ◽  
Characteristic Emission ◽  
Printing Ink

Europium complex Eu (BA)3Phen was synthesised by selecting the fine Benzoyl acetone (BA) as the first ligand, o-phenanthroline (Phen) as the second ligand . IR spectrum indicated that europium ion has bonded with the ligands. The fluorescent properties and UV spectrum were studied. And fluorescent falsification-resistant screen printing ink was prepared , the fluorescent ink showed the characteristic emission of Eu3+, showed invisible in the visible light and showed obvious fluorescence under ultraviolet light.

Synthesis, Characterization, and Photoluminescence of a Novel Eu-Containing Polymer Precursor: {Tris(acetylacetonate)5-acrylamido-1,10-phenanthroline}Europium(III)

2013 ◽  
Vol 345 ◽  
pp. 189-192
Author(s):  
Cun Jin Xu
Keyword(s):  
Excited State ◽  
Acrylic Acid ◽  
Room Temperature ◽  
Functional Group ◽  
Europium Complex ◽  
Polymer Precursor ◽  
Red Emission ◽  
Pl Spectra ◽  
First Excited State ◽  
Antenna Ligand

A new europium complex, Eu (acac)3Aphen (where Hacac and Aphen stand for acetylacetone and 5-acrylamido-1,10-phenanthroline, respectively), was synthesized and characterized by elemental analysis, IR, UV and photoluminescence (PL) spectra. The ligand Aphen not only serves as an antenna ligand but also offers a functional group for polymer precursor. The room-temperature PL spectra of the europium (III) complex are composed of the typical Eu3+ red emission, assigned to transitions between the first excited state (5D0) and the multiplet (7F04). Compared to Eu (acac)2AA (where HAA is acrylic acid), Eu (acac)3Aphen exhibits greatly enhanced quantum efficiency (i.e., 14.1% vs 28.5%) and longer 5D0 lifetime (260 μs vs 568 μs).

Synthesis, Characterization, and Luminescent Properties of a Red-Emitting Europium Complex

2012 ◽  
Vol 512-515 ◽  
pp. 1771-1775
Author(s):  
Li Ying Zhang ◽  
Bin Li ◽  
Gang Lv
Keyword(s):  
Photophysical Properties ◽  
Luminescent Properties ◽  
Europium Complex ◽  
Maximum Efficiency ◽  
Red Emission ◽  
Phenanthroline Ligand ◽  
Organic Devices ◽  
20 Nm

a fluorine functionalized 1,10-phenanthroline ligand, 3-ethyl-2-(2-fluorophenyl) imidazo[4,5-f]1,10-phenanthroline(EFPIP) and the corresponding red-emitting Eu(ΙΙΙ) complex Eu(DBM)3(EFPIP) (DBM = dibenzoylmethanate) was synthesized and the photophysical properties and electroluminescent(EL) performances were researched. When Eu(DBM)3(EFPIP) was used as emitting material in organic devices, the maximum efficiency and luminance of red emission achieved from the EL device with the configuration of ITO/m-MTDATA (30 nm)/NPB (20 nm)/ x wt% Eu(DBM)3(EFPIP) doped in CBP (30 nm)/Bphen (20 nm)/Alq3 (20 nm)/LiF (0.8 nm)/Al were 3.6 cd/A and 563 cd/m2, respectively. Compared with the previously reported devices based on methyl or chlorine substitute Eu(ΙΙΙ) complexes, the EL performances of the device using Eu(DBM)3(EFPIP) as an emitter was significantly enhanced due to the introduction of fluorine.

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