000202498 001__ 202498
000202498 005__ 20181203023634.0
000202498 0247_ $$2doi$$a10.1039/c4ra07304e
000202498 022__ $$a2046-2069
000202498 02470 $$2ISI$$a000341287700069
000202498 037__ $$aARTICLE
000202498 245__ $$aAcetylene-bridged dyes with high open circuit potential for dye-sensitized solar cells
000202498 260__ $$aCambridge$$bRSC Publishing$$c2014
000202498 269__ $$a2014
000202498 300__ $$a7
000202498 336__ $$aJournal Articles
000202498 520__ $$aA series of simple metal-free organic dyes MS1-MS3 have been designed and synthesized, and their optical, electrochemical, and photovoltaic properties were investigated. The molecular structures are based on a push-pull framework with a triphenylamine, naphthyldiphenylamine, or anthracenyl diphenylamine as the donor connected to a carboxyphenyl acceptor via a C C bond. The speciality of this new dye design is to obtain higher device open-circuit potentials. The dye-sensitized solar cells using this new sensitizer in combination with I-/I-3(-) exhibited exceptionally high V-OC values of 810, 844, and 866 mV for MS1, MS2, and MS3, respectively. The absorption bands of the anthracene-bridged dye MS3 showed remarkable peak broadening and red shifts due to the strong electronic coupling between the donor and bridge facilitated by the C-C triple bond, significantly promoting the light-harvesting capability. The resulting devices of MS3 showed large IPCE values of 75-80% in the region 370-590 nm, giving J(SC)/mA cm(-2) = 8.16, V-OC/mV = 866, FF = 0.76, and eta = 5.44% under standard AM 1.5G one sun irradiation.
000202498 700__ $$aMai, Chi-Lun$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$0244223$$aMoehl, Thomas$$g196687$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$aKim, Yongjoo$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$aHo, Feng-Yi$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000202498 700__ $$0240596$$aComte, Pascal$$g104809$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$aSu, Po-Cheng$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000202498 700__ $$aHsu, Chia-Wei$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000202498 700__ $$0246575$$aGiordano, Fabrizio$$g229949$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$0244230$$aYella, Aswani$$g198812$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$0240194$$aZakeeruddin, Shaik M.$$g106763$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 700__ $$aYeh, Chen-Yu$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000202498 700__ $$0240191$$aGraetzel, Michael$$g105292$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000202498 773__ $$j4$$k66$$q35251-35257$$tRsc Advances
000202498 909C0 $$0252060$$pLPI$$xU10101
000202498 909CO $$ooai:infoscience.tind.io:202498$$pSB$$particle
000202498 917Z8 $$x105528
000202498 937__ $$aEPFL-ARTICLE-202498
000202498 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000202498 980__ $$aARTICLE