HOPV12 - Blogs

Recommendations

Info

4 th Hybrid and Organic Photovoltaic Conference -Uppsala 2012 275 References [1] Zhan H., Lamare S., Ng A., Kenny T., Guernon H.. Chan W.-K., Djurisic A. B., Harvey P. D., Wong W.-Y. ”Synthesis and Photovoltaic Properties of New Metalloporphyrin-Containing Polyplatinyne Polymers” Macromolecules 44, 5155-5167(2011). [2] Pinto S. M., Burrows H. D., Pereira M. M., Fonseca S. M., Dias F. B., Mallavia R., Tapia M. J. J. Phys. Chem. B 113, 16093-16100 (2009) [3] Laurenti M., Rubio-Retama J., Garcia-Blanco F., López-Cabarcos E. “Influence of the Surfactant Chain Length on the Fluorescence Properties of a Water-Soluble Conjugated Polymer” Langmuir 24, 13321-13327 (2008). © SEFIN 2012
4 th Hybrid and Organic Photovoltaic Conference -Uppsala 2012 276 C136 - Synthesis and Properties of an Asymmetric Binuclear Ruthenium Polypyridine Dye Tiago A. Matias, André Luís A. Parussulo, Sérgio H. Toma, Koiti Araki, Henrique E. Toma Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, S˜ao Paulo, CEP 05508-000, Brazil Supramolecular approach has been used to design more efficient photosensitizers for Dye Sensitized Solar Cell (DSSC) with capable to harvest light by photoinduced charge separation, higher absorptivity in the visible/infrared range thanks to antenna effect and electron-transfer processes to enhance photoinduced charge separation, associated with slower charge recombination processes. 1 Previously we described the symmetric binuclear complex Na6[{[Ru(dcbpy)2Cl}2(BPEB)] (dcbpy=2,2'-bipyridine-4,4'-dicarboxylate and BPEB=trans-1,4-bis[2-(4pyridyl)ethenyl]benzene) which exhibited good photoelectrochemical properties. 2 Here we focused on the asymmetric binuclear species {[RuCl(dmbpy)2]-BPEB-[RuCl(dcbpyH2)2]}(PF6)2 (dmbpy=4,4’-dimetil-2,2’-bipyridine) containing a donor [RuCl(dmbpy)2] and acceptor [RuCl(dcbpyH2)2] moieties. BPEB is a π-conjugated bridging ligand allowing intramolecular electron-transfer or energy-transfer processes 2 increasing solar-to-electrical energy conversion efficiency in dye sensitized solar cells, DSSCs. The [RuCl(dmbpy)2(BPEB)](PF6) and the binuclear species were successfully prepared using a similar procedure to literature. 3 ESI-MS spectrum of the binuclear species showed a molecular ion peak in m/z=707.1 (Δm/z=0,5 Figure1A) and the daughter ion fragments [RuCl(dcbpyH2)2(BPE)] 1+ m/z=909.0, [RuCl(dmbpy)2(BPE)] 1+ m/z=789.2 and [RuCl(dmbpy)2] 1+ m/z=505.0 as expected for the MS + spectrum. The [RuCl(dmbpy)2(BPEB)] exhibited absorption bands at 295 and 355nm, ascribed to dmbpy and BPEB intraligand transitions (Figure1B), 3 and metal-to-ligand charge transfer (MLCT) bands at 421 and 488nm. 3 The binuclear species exhibited bands at 295, 316 and 355nm ascribed to intraligands transitions in the dmbpy, dcbpyH2 and BPEB, respectively, and the charge transfer bands at 419 and 499nm. These were broadened and intensified by the contributions of the MLCT bands of both, the [RuCl(dcbpyH2)2(BPEB)] and [RuCl(dmbpy)2(BPEB)] moieties. The [RuCl(dmbpy)2(BPEB)](PF6) showed two reversible ligand reduction processes at E1/2= - 1.33 and -1.52V and the characteristic Ru(III/II) process at E1/2=0.80V. 3 The binuclear complex exhibited two reversible Ru(III/II) processes at E1/2=0.84 and 1.28V respectively assigned to the [RuCl(dmbpy)2] and [RuCl(dcbpyH2)2] bridged by BPEB (Figure1D). © SEFIN 2012
Page 3 and 4:
4 th Hybrid and Organic Photovoltai
Page 5 and 6:
The 4th International Conference on
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226: 4 th Hybrid and Organic Photovoltai
Page 275: 4 th Hybrid and Organic Photovoltai
show all

HOPV12 - Blogs

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?