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dc.contributor.author강용수-
dc.date.accessioned2018-03-15T07:49:28Z-
dc.date.available2018-03-15T07:49:28Z-
dc.date.issued2014-02-
dc.identifier.citationEuropean Journal of Inorganic Chemistry, 2014, 16, P.2720-2734en_US
dc.identifier.issn1434-1948-
dc.identifier.issn1099-0682-
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201402091-
dc.description.abstractStable push-pull substituted heteroleptic bis(tridentate) ruthenium(II) polypyridine complexes with COOH or 2,2-bipyridine anchor groups have been prepared and characterized by 1H, 13C and 15N NMR 1D and 2D spectroscopy, infrared spectroscopy, elemental analysis, high-resolution ESI mass spectrometry, electrochemistry, UV/Vis absorption spectroscopy, luminescence spectroscopy, and density functional calculations. The complexes feature a pronounced electronic directionality and high absorption wavelengths up to max = 544 nm extending to 720 nm as a result of favorable push-pull substitutions. A remarkable photostability in the presence of water and coordinating ions (I-) was discovered for the tridentate complexes when compared with the standard ruthenium sensitizer N719 and tris(bidentate) [Ru(bpy)3](PF6)2, which are highly photolabile under the same conditions (photodissociation/photosubstitution). The complexes were studied as photosensitizers in dye-sensitized solar cells. The incident photon-to-current conversion efficiency follows the absorption spectra into the NIR region. However, the high positive charge of the complexes (2+) favors the recombination of the injected electrons with I3- of the redox electrolyte, which is evidenced by high dark currents and short electron recombination lifetimes, leading to low cell performances compared with cells with the negatively charged N719 dye.en_US
dc.description.sponsorshipThis work was supported by the International Research Training Group (IRTG 1404): Self Organized Materials for Optoelectronics supported by the Deutsche Forschungsgemeinschaft (DFG).en_US
dc.language.isoenen_US
dc.publisherWILEY-V C H VERLAG GMBHen_US
dc.subjectRutheniumen_US
dc.subjectTridentate ligandsen_US
dc.subjectSensitizersen_US
dc.subjectPhotochemistryen_US
dc.subjectN ligandsen_US
dc.subjectSENSITIZED SOLAR-CELLSen_US
dc.subjectEMITTING ELECTROCHEMICAL-CELLSen_US
dc.subjectNANOCRYSTALLINE TIO2 FILMSen_US
dc.subjectTRANSITION-METAL-COMPLEXESen_US
dc.subjectEXCITED-STATEen_US
dc.subjectPROTON-TRANSFERen_US
dc.subjectELECTROLUMINESCENT DEVICESen_US
dc.subjectPHOTOPHYSICAL PROPERTIESen_US
dc.subjectRECOMBINATION KINETICSen_US
dc.subjectCHARGE RECOMBINATIONen_US
dc.titleAnchor-Functionalized Push-Pull-Substituted Bis(tridentate) Ruthenium(II) Polypyridine Chromophores: Photostability and Evaluation as Photosensitizersen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/ejic.201402091-
dc.relation.page2720-2734-
dc.relation.journalEUROPEAN JOURNAL OF INORGANIC CHEMISTRY-
dc.contributor.googleauthorBreivogel, Aaron-
dc.contributor.googleauthorWooh, Sanghyuk-
dc.contributor.googleauthorDietrich, Jan-
dc.contributor.googleauthorKim, Tea Yon-
dc.contributor.googleauthorKang, Yong Soo-
dc.contributor.googleauthorChar, Kookheon-
dc.contributor.googleauthorHeinze, Katja-
dc.relation.code2014029257-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidkangys-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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