N -Heterocyclic carbene transition metal complexes in light emitting devices

Polyhedron ◽  
2018 ◽  
Vol 140 ◽  
pp. 158-168 ◽  
Author(s):  
M. Elie ◽  
J.-L. Renaud ◽  
S. Gaillard
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Light Emitting ◽  
Light Emitting Devices

ChemInform Abstract: Luminescent Ionic Transition Metal Complexes for Light-Emitting Electrochemical Cells

ChemInform ◽  
2012 ◽  
Vol 43 (49) ◽  
pp. no-no
Author(s):  
Ruben D. Costa ◽  
Enrique Orti ◽  
Henk J. Bolink ◽  
Filippo Monti ◽  
Gianluca Accorsi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Ionic Transition

Luminescent Ionic Transition-Metal Complexes for Light-Emitting Electrochemical Cells

2012 ◽  
Vol 51 (33) ◽  
pp. 8178-8211 ◽  
Author(s):  
Rubén D. Costa ◽  
Enrique Ortí ◽  
Henk J. Bolink ◽  
Filippo Monti ◽  
Gianluca Accorsi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Ionic Transition

scholarly journals Transition Metal Complexes of Pyridyl Ligand as Light Emitting Materials in OLEDs

2019 ◽  
Vol 32 (1) ◽  
pp. 161-166
Author(s):  
Thippeswamy Basavaraja ◽  
Somashekara Bhadrachar ◽  
Kittappa M Mahadevan
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Band Gap ◽  
Transition Metal Complexes ◽  
Elemental Analysis ◽  
Organic Light Emitting Diodes ◽  
Photoluminescence Spectra ◽  
Light Emitting ◽  
Organic Light ◽  
Pyridyl Ligand

Transition metal complexes, viz., tetrapyridylbis(isothiocyanato)nickel(II) (1), dipyridylbis (isothiocyanato)copper(II) (2) and dipyridylbis-(isothiocyanato)zinc(II) (3) were synthesized by conventional methods. All the synthesized metal complexes were characterized by spectral and elemental analysis. Diffused reflectance (DR) spectra of the complexes 1-3 recorded in the range 200-1100 nm exhibit major peaks at 450 nm and 750 nm (% diffused reflectance 50 and 55, respectively) for complex 1, 500 nm (20 % diffused reflectance) for complex 2 and 400 nm (50 % diffused reflectance) for complex 3. The excitation and emission peaks obtained from photoluminescence spectra indicated the emission of white, green and white lights by the complexes 1, 2 and 3, respectively. From diffused reflectance spectra, the measured band gap energies were found to be 3.95 eV for complex 1, 2.77 eV for complex 2 and 4.3 eV for complex 3. Commission Internationale de l'Eclairage (CIE) coordinates of (0.31533, 0.33082), (0.22605, 0.35099) and (0.28633, 0.31012) were calculated for the complexes 1, 2 and 3, respectively. The phosphors 1-3 were readily soluble in various common organic solvents and they could become promising light emitting materials in organic light emitting diodes (OLEDs).

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