000199665 001__ 199665
000199665 005__ 20181203023520.0
000199665 0247_ $$2doi$$a10.1002/aenm.201301235
000199665 022__ $$a1614-6832
000199665 02470 $$2ISI$$a000334790000011
000199665 037__ $$aARTICLE
000199665 245__ $$aIonic Liquid-Sulfolane Composite Electrolytes for High-Performance and Stable Dye-Sensitized Solar Cells
000199665 260__ $$aWeinheim$$bWiley-VCH Verlag Berlin$$c2014
000199665 269__ $$a2014
000199665 300__ $$a8
000199665 336__ $$aJournal Articles
000199665 520__ $$aIonic liquid electrolytes are prepared using sulfolane as a plasticizer for eutectic melts to realize highly stable and efficiently performing dye-sensitized solar cells (DSCs) in hot climate conditions. Variations in the viscosity of the formulations with sulfolane content are measured and performance in DSCs is investigated using the ruthenium dye C106 as a sensitizer. A power conversion efficiency (PCE) of 8.2% is achieved under standard reporting conditions. Apart from lowering the viscosity, the addition of sulfolane induces a negative shift of the TiO2 conduction band edge. Strikingly the device performance increases to 8.4% at 50 degrees C due to higher short circuit photocurrent and fill factor, over-compensating the loss in open circuit voltage with increasing temperature. The PCE increases also upon decreasing the light intensity of the solar simulator, reaching up to 9% at 50 mW cm(-2). Devices based on these new electrolyte formulations show excellent stability during light soaking for 2320 h under full sunlight at 60 degrees C and also during a 1065 h long heat stress at 80 degrees C in the dark. A detailed investigation provides important information about the factors affecting the principal photovoltaic parameters during the aging process and the first results from a series of outdoor measurements are reported.
000199665 6531_ $$aphotovoltaic devices
000199665 6531_ $$astability
000199665 6531_ $$aionic liquid electrolytes
000199665 6531_ $$asulfolane
000199665 6531_ $$aimpedance spectroscopy
000199665 700__ $$0244220$$aMarszalek, Magdalena$$g178999$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 700__ $$0240599$$aArendse, Francine Duriaux$$g107341$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 700__ $$0243916$$aDecoppet, Jean-David$$g113958$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 700__ $$aBabkair, Saeed Salem$$uKing Abdulaziz Univ, Fac Sci, Ctr Nanotechnol, Dept Phys, Jeddah 21589, Saudi Arabia
000199665 700__ $$aAnsari, Azhar Ahmad$$uKing Abdulaziz Univ, Fac Sci, Ctr Nanotechnol, Dept Phys, Jeddah 21589, Saudi Arabia
000199665 700__ $$aHabib, Sami S.$$uKing Abdulaziz Univ, Dept Aeronaut Engn, Ctr Nanotechnol, Jeddah 21589, Saudi Arabia
000199665 700__ $$0240196$$aWang, Mingkui$$g177057$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 700__ $$0240194$$aZakeeruddin, Shaik M.$$g106763$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 700__ $$0240191$$aGraetzel, Michael$$g105292$$uSwiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000199665 773__ $$j4$$k6$$tAdvanced Energy Materials
000199665 909C0 $$0252060$$pLPI$$xU10101
000199665 909CO $$ooai:infoscience.tind.io:199665$$pSB$$particle
000199665 917Z8 $$x105528
000199665 937__ $$aEPFL-ARTICLE-199665
000199665 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000199665 980__ $$aARTICLE