000201184 001__ 201184
000201184 005__ 20181203023559.0
000201184 0247_ $$2doi$$a10.1021/jp5004352
000201184 022__ $$a1932-7447
000201184 02470 $$2ISI$$a000339930900073
000201184 037__ $$aARTICLE
000201184 245__ $$aMolecular Engineering of 2-Quinolinone Based Anchoring Groups for Dye-Sensitized Solar Cells
000201184 260__ $$aWashington$$bAmerican Chemical Society$$c2014
000201184 269__ $$a2014
000201184 300__ $$a8
000201184 336__ $$aJournal Articles
000201184 520__ $$aSix new donor-pi spacer-acceptor (D-pi-A) organic sensitizers based on the 2-quinolinone moiety as acceptor and anchoring groups were synthesized and tested for their performance in dye-sensitized solar cells (DSSCs). The systematic tuning of acceptor strength and anchoring modes lead to a variation of the photoelectrochemical properties and device performances. Characterization of the molecular structure and electronic and optical properties of the dyes, as well as their photovoltaic performance in DSSCs, was accomplished by means of NMR, UV spectroscopy, electrochemistry, quantum chemical, Fourier transform infrared spectroscopy, and transient photovoltage decay techniques. Thereby, significant dependence of DSSC performance on the substituents and anchoring groups was observed. In general, the optoelectronic properties of the sensitizers were mainly governed by the 2-quinolinone acceptor segment. Different types of anchoring modes were employed in this new type of acceptor segment, and their significance in the solar conversion efficiency was analyzed. Amide N,O-chelating anchoring mode and bianchor-type anchoring mode show higher short circuit current density among the various anchoring groups. This new type of anchoring mode will emerge as a promising alternative anchoring group to the widely utilized cyanoacrylic acid group.
000201184 700__ $$aGanesan, Paramaguru$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201184 700__ $$0243915$$aChandiran, Aravindkumar$$g192134$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201184 700__ $$0245127$$aGao, Peng$$g207176$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201184 700__ $$aRajalingam, Renganathan
000201184 700__ $$0240191$$aGraetzel, Michael$$g105292$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201184 700__ $$0240422$$aNazeeruddin, Mohammad Khaja$$g105958$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201184 773__ $$j118$$k30$$q16896-16903$$tJournal Of Physical Chemistry C
000201184 909C0 $$0252060$$pLPI$$xU10101
000201184 909CO $$ooai:infoscience.tind.io:201184$$pSB$$particle
000201184 917Z8 $$x105528
000201184 937__ $$aEPFL-ARTICLE-201184
000201184 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000201184 980__ $$aARTICLE