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dc.contributor.authorLee, Cheng-Weien_US
dc.contributor.authorLu, Hsueh-Peien_US
dc.contributor.authorLan, Chi-Mingen_US
dc.contributor.authorHuang, Yi-Linen_US
dc.contributor.authorLiang, You-Renen_US
dc.contributor.authorYen, Wei-Nanen_US
dc.contributor.authorLiu, Yen-Chunen_US
dc.contributor.authorLin, You-Shiangen_US
dc.contributor.authorDiau, Eric Wei-Guangen_US
dc.contributor.authorYeh, Chen-Yuen_US
dc.date.accessioned2014-12-08T15:10:21Z-
dc.date.available2014-12-08T15:10:21Z-
dc.date.issued2009en_US
dc.identifier.issn0947-6539en_US
dc.identifier.urihttp://hdl.handle.net/11536/7896-
dc.identifier.urihttp://dx.doi.org/10.1002/chem.200801572en_US
dc.description.abstractNovel meso- or beta-derivatized porphyrins with a carboxyl group have been designed and synthesized for use as sensitizers in dye-sensitized solar cells (DSSCs). The position and nature of a bridge connecting the porphyrin ring and carboxylic acid group show significant influences on the spectral, electrochemical, and photovoltaic properties of these sensitizers. Absorption spectra of porphyrins with a phenylethynyl bridge show that both Soret and Q bands are red-shifted with respect to those of porphyrin 6. This phenomenon is more pronounced for porphyrins 3 and 4, which have a pi-conjugated electron-donating group at the meso position opposite the anchoring group. Upon introduction of an ethynylene group at the meso position, the potential at the first oxidation alters only slightly whereas that for the first reduction is significantly shifted to the positive, thus indicating a decreased HOMO-LUMO gap. Quantum-chemical (DFT) results support the spectroelectrochemical data for a delocalization of charge between the porphyrin ring and the amino group in the first oxidative state of diarylamino-substituted porphyrin 5, which exhibits the best photovoltaic performance among all the porphyrins under investigation. From a comparison of the cell performance based on the same TiO(2) films, the devices made of porphyrin 5 coadsorbed with chenodeoxycholic acid (CDCA) on TiO(2) in ratios [5]/[CD-CA]=1:1 and 1:2 have efficiencies of power conversion similar to that of an N3-based DSSC, which makes this green dye a promising candidate for colorful DSSC applications.en_US
dc.language.isoen_USen_US
dc.subjectcross-couplingen_US
dc.subjectdonor-acceptor systemsen_US
dc.subjectelectrochemistryen_US
dc.subjectporphyrinoidsen_US
dc.subjectsolar cellsen_US
dc.titleNovel Zinc Porphyrin Sensitizers for Dye-Sensitized Solar Cells: Synthesis and Spectral, Electrochemical, and Photovoltaic Propertiesen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/chem.200801572en_US
dc.identifier.journalCHEMISTRY-A EUROPEAN JOURNALen_US
dc.citation.volume15en_US
dc.citation.issue6en_US
dc.citation.spage1403en_US
dc.citation.epage1412en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000263093800016-
dc.citation.woscount220-
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