%0 Journal Article %T Synthesis, photovoltaic performances and TD-DFT modeling of push-pull diacetylide platinum complexes in TiO2 based dye-sensitized solar cells. %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Department of Chemistry, Texas University %+ Chimie, Electrochimie Moléculaires et Chimie Analytique (CEMCA) %+ Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation (CEISAM) %A Gauthier, Sébastien %A Caro, Bertrand %A Robin-Le Guen, Françoise %A Bhuvanesh, Nattamai %A Gladysz, John A %A Wojcik, Laurianne %A Le Poul, Nicolas %A Planchat, Aurélien %A Pellegrin, Yann %A Blart, Errol %A Jacquemin, Denis %A Odobel, Fabrice %< avec comité de lecture %@ 1477-9226 %J Dalton Transactions %I Royal Society of Chemistry %V 43 %N 29 %P 11233-42 %8 2014-08-07 %D 2014 %R 10.1039/c4dt00301b %M 24837848 %Z Chemical SciencesJournal articles %X In this joint experimental-theoretical work, we present the synthesis and optical and electrochemical characterization of five new bis-acetylide platinum complex dyes end capped with diphenylpyranylidene moieties, as well as their performances in dye-sensitized solar cells (DSCs). Theoretical calculations relying on Time-Dependent Density Functional Theory (TD-DFT) and a range-separated hybrid show a very good match with experimental data and allow us to quantify the charge-transfer character of each compound. The photoconversion efficiency obtained reaches 4.7% for 8e (see TOC Graphic) with the tri-thiophene segment, which is among the highest efficiencies reported for platinum complexes in DSCs. %G English %L hal-01114401 %U https://univ-rennes.hal.science/hal-01114401 %~ UNIV-BREST %~ UNIV-NANTES %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ SCR_OMC2012 %~ ISCR-OMC %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ CEMCA-BREST %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ IBSAM %~ UR1-MMS %~ CEISAM %~ NANTES-UNIVERSITE %~ UNIV-NANTES-AV2022 %~ TEST2-HALCNRS