000212304 001__ 212304
000212304 005__ 20181203024017.0
000212304 0247_ $$2doi$$a10.1002/cssc.201403475
000212304 022__ $$a1864-5631
000212304 02470 $$2ISI$$a000360092400016
000212304 037__ $$aARTICLE
000212304 245__ $$aNanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells
000212304 260__ $$aWeinheim$$bWiley-VCH Verlag Berlin$$c2015
000212304 269__ $$a2015
000212304 300__ $$a9
000212304 336__ $$aJournal Articles
000212304 520__ $$aThe ability of Pt nanostructures to induce the splitting of the I-I bond in iodine (triiodide) molecules is explored here to enhance electron transfer in the iodine/iodide redox couple. Following the dispersal of Pt nanoparticles at 2% (weight) level, charge transport was accelerated in triiodide/iodide-containing 1,3-dialkylimidazolium room-temperature ionic liquid. If both Pt nanoparticles and multi-walled carbon nanotubes were introduced into the ionic-liquid-based system, a solid-type (nonfluid) electrolyte was obtained. By using solid-state voltammetric (both sandwich-type and microelectrode-based) methodology, the apparent diffusion coefficients for charge transport increased to approximately 1 x 10(-6) cm(2)s(-1) upon the incorporation of the carbon-nanotube-supported iodine-modified Pt nanostructures. A dye-sensitized solar cell comprising TiO2 covered with a heteroleptic Ru-II-type sensitizer (dye) and the semisolid triiodide/iodide ionic liquid electrolyte admixed with carbon-nanotube-supported Pt nanostructures yielded somewhat higher power conversion efficiencies (up to 7.9% under standard reporting conditions) than those of the analogous Pt-free system.
000212304 6531_ $$aiodine
000212304 6531_ $$ananotubes
000212304 6531_ $$ananoparticles
000212304 6531_ $$aplatinum
000212304 6531_ $$avoltammetry
000212304 700__ $$aRutkowska, Iwona A.$$uUniv Warsaw, Fac Chem, PL-02093 Warsaw, Poland
000212304 700__ $$0244220$$aMarszalek, Magdalena$$g178999$$uEcole Polytech Fed Lausanne, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000212304 700__ $$aOrlowska, Justyna$$uUniv Warsaw, Fac Chem, PL-02093 Warsaw, Poland
000212304 700__ $$aOzimek, Weronika$$uUniv Warsaw, Fac Chem, PL-02093 Warsaw, Poland
000212304 700__ $$0240194$$aZakeeruddin, Shaik M.$$g106763$$uEcole Polytech Fed Lausanne, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000212304 700__ $$aKulesza, Pawel J.$$uUniv Warsaw, Fac Chem, PL-02093 Warsaw, Poland
000212304 700__ $$0240191$$aGraetzel, Michael$$g105292$$uEcole Polytech Fed Lausanne, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000212304 773__ $$j8$$k15$$q2560-2568$$tChemsuschem
000212304 909C0 $$0252060$$pLPI$$xU10101
000212304 909CO $$ooai:infoscience.tind.io:212304$$pSB$$particle
000212304 917Z8 $$x105528
000212304 937__ $$aEPFL-ARTICLE-212304
000212304 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000212304 980__ $$aARTICLE