A new Cu(I) iodide complex showing deep-red luminescence

2020 ◽  
Vol 61 (7) ◽  
Keyword(s):  
Red Luminescence ◽  
Iodide Complex

A NEW Cu(I) IODIDE COMPLEX SHOWING DEEP-RED LUMINESCENCE

2020 ◽  
Vol 61 (7) ◽  
pp. 1068-1071
Author(s):  
A V Artem′ev ◽  
M I Rakhmanova ◽  
K A Brylev ◽  
I Yu Bagryanskaya
Keyword(s):  
Red Luminescence ◽  
Iodide Complex

scholarly journals Visual Detection of Triethylamine and a Dual Input/Output Logic Gate Based on a Eu3+-Complex

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3244
Author(s):  
Bao-Ning Li ◽  
Yuan-Yuan Liu ◽  
Ya-Ping Wang ◽  
Mei Pan
Keyword(s):  
Energy Transfer ◽  
Optical Sensors ◽  
Visual Detection ◽  
Logic Gate ◽  
Dmso Solution ◽  
Input Output ◽  
Promising Candidate ◽  
Bluish Green ◽  
Red Luminescence ◽  
Luminescence Color

A series of Ln3+-metal centered complexes, Ln(TTA)3(DPPI) (Ln = La, 1; Ln = Eu, 2; Ln = Tb, 3; or Ln = Gd, 4) [(DPPI = N-(4-(1H-imidazo [4,5-f][1,10]phenanthrolin-2-yl)phenyl)-N-phenylbenzenamine) and (TTA = 2-Thenoyltrifluoroacetone)] have been synthesized and characterized. Among which, the Eu3+-complex shows efficient purity red luminescence in dimethylsulfoxide (DMSO) solution, with a Commission International De L’ Eclairage (CIE) coordinate at x = 0.638, y = 0.323 and ΦEuL = 38.9%. Interestingly, increasing the amounts of triethylamine (TEA) in the solution regulates the energy transfer between the ligand and the Eu3+-metal center, which further leads to the luminescence color changing from red to white, and then bluish-green depending on the different excitation wavelengths. Based on this, we have designed the IMPLICATION logic gate for TEA recognition by applying the amounts of TEA and the excitation wavelengths as the dual input signal, which makes this Eu3+-complex a promising candidate for TEA-sensing optical sensors.

scholarly journals Synthesis of π-Conjugated Polymers Containing Benzotriazole Units via Palladium-Catalyzed Direct C-H Cross-Coupling Polycondensation for OLEDs Applications

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 254
Author(s):  
Dong Han ◽  
Jingwen Li ◽  
Qiang Zhang ◽  
Zewang He ◽  
Zhiwei Wu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Quantum Efficiency ◽  
Cross Coupling ◽  
Building Blocks ◽  
Gravimetric Analysis ◽  
19F Nmr Spectra ◽  
Light Emitting ◽  
Molecular Weights ◽  
Palladium Catalyzed ◽  
Red Luminescence

Four D-π-A conjugated polymers, namely P1–P4, which contain benzotriazole building blocks in their backbone as acceptor, are synthesized via palladium-catalyzed direct C-H cross-coupling polycondensation of 5,6-difluorobenzotriazole with different thiophene derivatives, including 3-octylthiophene, 2,2’-bithiophene, thieno[3,4-b][1,4]dioxine, and 4,4-dioctyl-4H-silolo-[3,2-b:4,5-b’]dithiophene as donor units, respectively. Taking the polymer P1 as an example, the chemical structure of the polymer is demonstrated by 1H and 19F NMR spectra. The optical, electrochemical, and thermal properties of these polymers are assessed by UV–vis absorption and fluorescence spectroscopy, cyclic voltammetry (CV), and thermal gravimetric analysis (TGA), respectively. DFT simulations of all polymers are also performed to understand their physicochemical properties. Furthermore, P1 and P2, which have relatively higher molecular weights and better fluorescent quantum efficiency than those of P3 and P4, are utilized as lighting emitters for organic light-emitting diodes (OLEDs), affording promising green and red luminescence with 0.07% and 0.14% of maximum external quantum efficiency, respectively, based on a device with an architecture of ITO/PEDOT:PSS/PTAA/the polymer emitting layer/TPBi/LiF/Al.

Semi sol-gel synthesis and red luminescence studies of Eu3+ activated Double perovskite phosphors Bi2-xEuxMoO6 (x=0.0–0.24)

Optik ◽  
2019 ◽  
Vol 182 ◽  
pp. 565-570 ◽  
Author(s):  
B. Nagamani Naidu ◽  
K. Koteswara Rao ◽  
M.P.S. Murali Krishna
Keyword(s):  
Sol Gel ◽  
Double Perovskite ◽  
Red Luminescence ◽  
Sol Gel Synthesis

The nature of red luminescence of natural benitoite BaTiSi3O9

2005 ◽  
Vol 85 (1-2) ◽  
pp. 33-44 ◽  
Author(s):  
M. Gaft ◽  
L. Nagli ◽  
G. Waychunas ◽  
G. Panczer
Keyword(s):  
Red Luminescence

A divalent manganese garnet with red luminescence

1992 ◽  
Vol 30 (3) ◽  
pp. 199-203 ◽  
Author(s):  
O. Nijs ◽  
J.M.W. Verweij ◽  
G. Blasse
Keyword(s):  
Red Luminescence

Possible nature of the red luminescence in incipient ferroelectric KTaO3

1999 ◽  
Vol 149 (1-4) ◽  
pp. 125-130 ◽  
Author(s):  
V. Vikhnin ◽  
M. Aulich ◽  
S. Eden ◽  
S. Kapphan
Keyword(s):  
Red Luminescence

Separation of Iodide Complex of Cadmium (II) in Propyl-Alcohol Ammonium Sulfate Aqueous Biphasic System

2014 ◽  
Vol 955-959 ◽  
pp. 2200-2204
Author(s):  
Guo Kui Zeng ◽  
Gui Hua Li
Keyword(s):  
Ammonium Sulfate ◽  
Ion Pair ◽  
Pair Formation ◽  
Experimental Results ◽  
Biphasic System ◽  
Extraction System ◽  
Propyl Alcohol ◽  
Aqueous Biphasic System ◽  
Aqueous Biphasic ◽  
Iodide Complex

The distribution behaviors of iodide complex of Cd (II) in the propyl-alcohol ammonium sulfate aqueous biphasic extraction system was experimentally investigated in this work. Cd (II) was found to be extracted from the propyl-alcohol phase due to its ion pair formation as CdI42-(PrOH2+)2 in the presence of NH4I and in HCL, and the associated extraction conditions were optimized. The experimental results indicated that cadmium can be efficiently extracted by the method, and an extraction rate of 99.1% for cadmium can be achieved under optimizing conditions.

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