Ancillary ligand substitution in the new series [Ru(dicnq)(pyTz)(X)] + {dicnq=6,7-dicyanodipyrido[2,2-d:2΄,3΄-f]quinoxaline and X=2, 2bipyridine (bpy), 1,10-phenanthroline (phen), 2-pyridine tetrazole (pyTz)}, proves to be an effective way to create white electroluminescence with the Commission Internationale d'Eclairage Chromaticity Coordinates x=0.40 and y=0.39. These complexes were characterized by UV-visible and FT-IR spectroscopy, 1 H-NMR, CHN and Mass spectroscopy analysis. The absorption and 15 emission spectra are consistent with low-lying MLCT excited states, which are typical of Ru(II) polypyridyl complexes. All the complexes exhibit reversible metal-centered oxidation processes undergo a one-electron oxidation within the potential range +1.30 vs SCE. On reduction, each compound undergoes several reversible or quasi reversible ligand-centered reductions (-1.65-2.40 V). It was found that white light emission can be obtained from the device ITO/PEDOT:PSS /PVK/ ruthenium complex / PBD/Al by combining Forster emission from Ru(dicnq) and Exciplex emission at PVK/Ru(dicnq) interface, although the CIE chromaticity coordinates 20 75