000201030 001__ 201030
000201030 005__ 20181203023555.0
000201030 0247_ $$2doi$$a10.1002/anie.201309343
000201030 022__ $$a1433-7851
000201030 02470 $$2ISI$$a000336846300017
000201030 037__ $$aARTICLE
000201030 245__ $$aMolecular Engineering of Push-Pull Porphyrin Dyes for Highly Efficient Dye-Sensitized Solar Cells: The Role of Benzene Spacers
000201030 260__ $$aWeinheim$$bWiley-Blackwell$$c2014
000201030 269__ $$a2014
000201030 300__ $$a5
000201030 336__ $$aJournal Articles
000201030 520__ $$aPorphyrins have drawn much attention as sensitizers owing to the large absorption coefficients of their Soret and Q bands in the visible region. In a donor and acceptor zinc porphyrin we applied a new strategy of introducing 2,1,3-benzothiadiazole (BTD) as a pi-conjugated linker between the anchoring group and the porphyrin chromophore to broaden the absorption spectra to fill the valley between the Soret and Q bands. With this novel approach, we observed 12.75% power-conversion efficiency under simulated one-sun illumination (AM1.5G, 100 mW cm(-2)). In this study, we showed the importance of introducing the phenyl group as a spacer between the BTD and the zinc porphyrin in achieving high power-conversion efficiencies. Time-resolved fluorescence, transient-photocurrent-decay, and transient-photovoltage-decay measurements were employed to determine the electron-injection dynamics and the lifetime of the photogenerated charge carriers.
000201030 6531_ $$adyes
000201030 6531_ $$aenergy conversion
000201030 6531_ $$aporphyrinoids
000201030 6531_ $$asensitizers
000201030 6531_ $$asolar cells
000201030 700__ $$0244230$$aYella, Aswani$$g198812$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201030 700__ $$aMai, Chi-Lun$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000201030 700__ $$0240194$$aZakeeruddin, Shaik M.$$g106763$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201030 700__ $$aChang, Shu-Nung$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000201030 700__ $$aHsieh, Chi-Hung$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000201030 700__ $$aYeh, Chen-Yu$$uNatl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
000201030 700__ $$0240191$$aGraetzel, Michael$$g105292$$uEcole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
000201030 773__ $$j53$$k11$$q2973-2977$$tAngewandte Chemie-International Edition
000201030 909C0 $$0252060$$pLPI$$xU10101
000201030 909CO $$ooai:infoscience.tind.io:201030$$pSB$$particle
000201030 917Z8 $$x105528
000201030 937__ $$aEPFL-ARTICLE-201030
000201030 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000201030 980__ $$aARTICLE