N’GUESSAN, N. K.; BAMBA, K.; PATRICE, O. W.; ZIAO, N. Theoretical Investigation of Structural and Electronic Properties of Ruthenium Azopyridine Complexes Dyes for Photovoltaic Applications by Using DFT and TD-DFT Methods. European Scientific Journal, ESJ, v. 14, n. 21, p. 424, 31 Jul. 2018.