000205666 001__ 205666
000205666 005__ 20181203023801.0
000205666 0247_ $$2doi$$a10.1016/j.poly.2014.05.045
000205666 022__ $$a0277-5387
000205666 02470 $$2ISI$$a000345815800017
000205666 037__ $$aARTICLE
000205666 245__ $$aCyclopentadithiophene-functionalized Ru(II)-bipyridine sensitizers for dye-sensitized solar cells
000205666 260__ $$aOxford$$bPergamon-Elsevier Science Ltd$$c2014
000205666 269__ $$a2014
000205666 300__ $$a7
000205666 336__ $$aJournal Articles
000205666 520__ $$aTwo ruthenium sensitizers TT-230 and TT-232 based on cyclopenta[2,1-b:3,4-b']dithiophene (CDT) were tested in dye-sensitized solar cells (DSSCs) using,a tri-iodide/iodide redox couple, and their performances compared to the benchmark Z907. Both dyes of general formula Ru(LL')(NCS)(2) feature the same 4.4'-dicarboxylic acid 2,2'-bipyridine moiety acting as the anchoring group (L) to attach the dye on the TiO2 surface, and two CDT subunits as ancillary groups (L' either directly-linked (11-230) or vinylene-linked (TT-232) to the bipyridine moiety. In comparison with TT-230, the it-extended conjugation in TT-232 caused significant redshift and broadening of the absorption bands. However, despite better light-harvesting properties, the DSSC device sensitized with TT-232 strikingly underperformed compared to TT-230 under same conditions (PCE = 3.2% and 6.1%, respectively). The use of co-adsorbent (CHENO) or surfactants did not help to improve the photovoltaic properties of TT-230, and resulted in a degradation of the overall efficiency of the cell. (C) 2014 Elsevier Ltd. All rights reserved.
000205666 6531_ $$aDye-sensitized solar cells
000205666 6531_ $$aRuthenium dyes
000205666 6531_ $$aCyclopentadithiophene
000205666 6531_ $$aHeteroleptic Ru(II) complex
000205666 6531_ $$aPhotovoltaic
000205666 700__ $$aUrbani, Maxence$$uUniv Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain
000205666 700__ $$aMedel, Maria$$uUniv Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain
000205666 700__ $$aKumar, Sangeeta Amit$$uEcole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000205666 700__ $$0243915$$aChandiran, Aravind Kumar$$g192134$$uEcole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000205666 700__ $$aGonzalez-Rodriguez, David$$uUniv Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain
000205666 700__ $$0240191$$aGraetzel, Michael$$g105292$$uEcole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000205666 700__ $$0240422$$aNazeeruddin, Mohammad Khaja$$g105958$$uEcole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000205666 700__ $$aTorres, Tomas$$uUniv Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain
000205666 773__ $$j82$$q132-138$$tPolyhedron
000205666 909C0 $$0252060$$pLPI$$xU10101
000205666 909CO $$ooai:infoscience.tind.io:205666$$pSB$$particle
000205666 917Z8 $$x207176
000205666 937__ $$aEPFL-ARTICLE-205666
000205666 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000205666 980__ $$aARTICLE