naa a22 4500 510733484 CHVBK 20180411083001.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s12039-012-0349-7 doi (NATIONALLICENCE)springer-10.1007/s12039-012-0349-7 Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes [Elektronische Daten] [ADEWALE ADELOYE, PETER AJIBADE, FRANCES CUMMINGS, LUKAS LE ROUX, SAMPSON MAMPHWELI, EDSON MEYER] Four new amphiphilic ligands: 4-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L1), 4-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L2), 5-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L3) and 5-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L4), with their corresponding homonuclear ruthenium(II) complexes formulated as cis-[Ru-(L1)3(PF6)2] (C1), cis-[Ru-(L2)3(PF6)2] (C2), cis-[Ru-(L3)3(PF6)2] (C3) and cis-[Ru-(L4)3(PF6)2] (C4), have been synthesized and characterized by elemental analysis, 1H- and 13C- NMR, FT-IR, UV-Vis and photoluminescence spectroscopy. The complexes exhibit broad and intense metal-to-ligand charge transfer (MLCT) transition bands in the visible region (400-700nm), and red light emitting properties at room temperature. By comparison however, complexes C1 and C2 bipyridine moiety gave lower molar absorptivity coefficient at relatively similar wavelength characteristics (410-520nm) when compared to C3 and C4 with phenanthroline based molecules. Cyclic voltammograms of the complexes revealed complex C4 with most reduction potential which might be due to increase in the conjugation of the anthracene functionalized units. Preliminary investigation of the solar cell efficiency of the complexes on TiO2 nanocrystalline films gave the best result with efficiency of 0.103% for C1 under illumination at 1000W/m2 AM 1.5. Electrochemical impedance spectroscopy (EIS) technique however, revealed the charge transfer resistances (Rct) of the electrons on the TiO2 semiconductor. Graphical Abstract Ruthenium(II) complexes of functionalized bipyridine and phenanthroline were synthesized and characterized by spectroscopic techniques. The complexes showed intense charge transfer transition and their electrochemical properties were studied. Preliminary investigations were carried out to study their potential as sensitizers for dye sensitized solar cells. Indian Academy of Sciences, 2013 Ruthenium(II) nationallicence polypyridyl ligands nationallicence spectroscopy nationallicence electrochemistry nationallicence DSSCs nationallicence ADELOYE ADEWALE Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut AJIBADE PETER Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut CUMMINGS FRANCES CSIR Materials Science and Manufacturing, PO Box 395, 0001, Pretoria, South Africa aut LE ROUX LUKAS CSIR Materials Science and Manufacturing, PO Box 395, 0001, Pretoria, South Africa aut MAMPHWELI SAMPSON Fort Hare Institute of Technology, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut MEYER EDSON Fort Hare Institute of Technology, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut Journal of Chemical Sciences Springer-Verlag 125/1(2013-01-01), 17-27 0974-3626 125:1<17 2013 125 12039 https://doi.org/10.1007/s12039-012-0349-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-012-0349-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- ADELOYE ADEWALE Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut NATIONALLICENCE 700 1- AJIBADE PETER Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut NATIONALLICENCE 700 1- CUMMINGS FRANCES CSIR Materials Science and Manufacturing, PO Box 395, 0001, Pretoria, South Africa aut NATIONALLICENCE 700 1- LE ROUX LUKAS CSIR Materials Science and Manufacturing, PO Box 395, 0001, Pretoria, South Africa aut NATIONALLICENCE 700 1- MAMPHWELI SAMPSON Fort Hare Institute of Technology, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut NATIONALLICENCE 700 1- MEYER EDSON Fort Hare Institute of Technology, University of Fort Hare, PMB X1314, 5700, Alice, South Africa aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer-Verlag 125/1(2013-01-01), 17-27 0974-3626 125:1<17 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer