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Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes

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dc.contributor.author Adeloye, AO
dc.contributor.author Ajibade, PA
dc.contributor.author Cummings, FR
dc.contributor.author Le Roux, Lukas J
dc.contributor.author Mamphweli, SN
dc.contributor.author Meyer, EL
dc.date.accessioned 2013-10-23T11:52:43Z
dc.date.available 2013-10-23T11:52:43Z
dc.date.issued 2013-01
dc.identifier.citation Adeloye, A.O., Ajibade, P.A., Cummings, F.R., Le Roux, L.J., Mamphweli, S.N. and Meyer, E.L. 2013. Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes. Journal of Chemical Sciences, vol. 125(1), pp 17-27 en_US
dc.identifier.issn 0974-3626
dc.identifier.uri http://link.springer.com/article/10.1007%2Fs12039-012-0349-7
dc.identifier.uri http://hdl.handle.net/10204/6986
dc.description Copyright: 2013 Springer Verlag. This is an open access journal. This journal authorizes the publication of the information herewith contained. Published in Journal of Chemical Sciences, vol. 125(1), pp 17-27 en_US
dc.description.abstract Four new amphiphilic ligands: 4-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub1), 4-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub2), 5-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L(sub3) and 5-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L(sub4), with their corresponding homonuclear ruthenium(II) complexes formulated as cis-[Ru-(L(sub1)sbu3(PF(sub6)sub2] (C1), cis-[Ru-(L(sub2)sub3(PF(sub6)sub2] (C2), cis-[Ru-(Lsub3)sub3(PF(sub6)sub2] (C3) and cis-[Ru-(L(sub4)sub3(PF(sub6)sub2] (C4), have been synthesized and characterized by elemental analysis, sub1H- and sub13C- 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 (400–700 nm), 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 (410–520 nm) 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 TiO(sub2) nanocrystalline films gave the best result with efficiency of 0.103% for C1 under illumination at 1000 W/m2 AM 1.5. Electrochemical impedance spectroscopy (EIS) technique however, revealed the charge transfer resistances (Rsubct) of the electrons on the TiO2 semiconductor. en_US
dc.language.iso en en_US
dc.publisher Springer Verlag en_US
dc.relation.ispartofseries Workflow;11616
dc.subject Ruthenium(II) en_US
dc.subject Polypyridyl ligands en_US
dc.subject Spectroscopy en_US
dc.subject Electrochemistry en_US
dc.subject Dye-sensitized solar cells en_US
dc.subject DSSCs en_US
dc.title Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes en_US
dc.type Article en_US
dc.identifier.apacitation Adeloye, A., Ajibade, P., Cummings, F., Le Roux, L. J., Mamphweli, S., & Meyer, E. (2013). Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes. http://hdl.handle.net/10204/6986 en_ZA
dc.identifier.chicagocitation Adeloye, AO, PA Ajibade, FR Cummings, Lukas J Le Roux, SN Mamphweli, and EL Meyer "Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes." (2013) http://hdl.handle.net/10204/6986 en_ZA
dc.identifier.vancouvercitation Adeloye A, Ajibade P, Cummings F, Le Roux LJ, Mamphweli S, Meyer E. Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes. 2013; http://hdl.handle.net/10204/6986. en_ZA
dc.identifier.ris TY - Article AU - Adeloye, AO AU - Ajibade, PA AU - Cummings, FR AU - Le Roux, Lukas J AU - Mamphweli, SN AU - Meyer, EL AB - Four new amphiphilic ligands: 4-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub1), 4-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-2,2′-bipyridine (L(sub2), 5-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L(sub3) and 5-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-1,10-phenanthroline (L(sub4), with their corresponding homonuclear ruthenium(II) complexes formulated as cis-[Ru-(L(sub1)sbu3(PF(sub6)sub2] (C1), cis-[Ru-(L(sub2)sub3(PF(sub6)sub2] (C2), cis-[Ru-(Lsub3)sub3(PF(sub6)sub2] (C3) and cis-[Ru-(L(sub4)sub3(PF(sub6)sub2] (C4), have been synthesized and characterized by elemental analysis, sub1H- and sub13C- 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 (400–700 nm), 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 (410–520 nm) 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 TiO(sub2) nanocrystalline films gave the best result with efficiency of 0.103% for C1 under illumination at 1000 W/m2 AM 1.5. Electrochemical impedance spectroscopy (EIS) technique however, revealed the charge transfer resistances (Rsubct) of the electrons on the TiO2 semiconductor. DA - 2013-01 DB - ResearchSpace DP - CSIR KW - Ruthenium(II) KW - Polypyridyl ligands KW - Spectroscopy KW - Electrochemistry KW - Dye-sensitized solar cells KW - DSSCs LK - https://researchspace.csir.co.za PY - 2013 SM - 0974-3626 T1 - Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes TI - Synthesis, photophysical and preliminary investigation of the dye-sensitized solar cells properties of functionalized anthracenyl-based bipyridyl and phenanthrolyl Ru(II) complexes UR - http://hdl.handle.net/10204/6986 ER - en_ZA


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