Structure-Property Relationship in Amber Color Light-Emitting Electrochemical Cell with TFSI Counteranion: Enhancing Device Performance by Different Substituents on N boolean AND N Ligand

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dc.authoridKARAMAN, MERVE/0000-0003-2803-7414
dc.authoridTugsuz, Tugba/0000-0002-1407-1374
dc.authoridDemic, Serafettin/0000-0003-2027-0334
dc.contributor.authorDemir, Nuriye
dc.contributor.authorKaraman, Merve
dc.contributor.authorYakali, Gul
dc.contributor.authorTugsuz, Tugba
dc.contributor.authorDenizalti, Serpil
dc.contributor.authorDemic, Serafettin
dc.contributor.authorDindar, Bircan
dc.date.accessioned2023-01-12T19:58:33Z
dc.date.available2023-01-12T19:58:33Z
dc.date.issued2021
dc.departmentN/A/Departmenten_US
dc.description.abstractAmber color emitting novel Ir(III) complexes were synthesized: [Ir-(Meppy)(2)( Fpbpy)][ PF6] ( 1bPF6), [Ir(Meppy) 2( Fpbpy)][TFSI] ( 1bTFSI), [Ir(Meppy)(2)(MeObpy)][PF6] (2bPF6) and [Ir(Meppy)2(MeObpy)][TFSI] (2bTFSI), where Meppy = 2-(p-methylphenyl)-pyridine (b), Fpbpy = 4,4'-bis(4-fluorophenyl)-2,2'-bipyridine (1), and MeObpy = 4,4'-bis(4-methoxy)-2,2'-bipyridine (2). The photophysical and X-ray results showed that the complexes have aggregation-induced phosphorescent emission (AIPE) and a salt-induced polymorphism effect. The highest photoluminescence intensity was observed in complex 2bTFSI compared to other complexes in the solid state. Their theoretical absorption and phosphorescence emission transitions in acetonitrile were also investigated by using double- and triple-. basis sets with B3LYP and PBE0 hybrid functional. The best lightemitting electrochemical cell (LEC) performance was exhibited by complex 2bTFSI, and the data obtained were as follows: Luminance, current density, luminous efficiency, turn-on time, power efficiency, and external quantum efficiency were measured as 16 156 cd/m2, 554 mA/cm(2), 8.49 cd/A, 17 s, 3.95 lm/W and 6.37%, respectively. The investigation of crystallographic characteristics have shown that the LEC performance of these complexes depends on cationic-anionic interaction which has a significant influence on molecular stacking of the molecules. Because, complex 2bTFSI, with weak cationic-anionic interactions, shows strong p center dot center dot center dot p stacking interactions between the adjacent molecules, it is the best lighting application candidate among the complexes.en_US
dc.description.sponsorshipEge University Solar Energy Institute [17 GEE 004, TUBITAK: 16DPT002]; Dokuz Eylul University [2010.KB.FEN.13]en_US
dc.description.sponsorshipWe thank the Ege University Solar Energy Institute for photophysical, NMR, CV analysis, and optoelectronic measurements (grant no. 17 GEE 004 and TUBITAK: 16DPT002). We also thank Izmir Katip Celebi University Central Research Laboratory for TGA analysis. We are grateful to Dokuz Eylul University for crystallographic measurements (Agilent Xcalibur Eos diffractometer, grant no. 2010.KB.FEN.13). We also thank Hacettepe University and TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources) for DFT and TD-DFT calculations.en_US
dc.identifier.doi10.1021/acs.inorgchem.0c02939
dc.identifier.endpage4423en_US
dc.identifier.issn0020-1669
dc.identifier.issn1520-510X
dc.identifier.issue7en_US
dc.identifier.pmid33667070en_US
dc.identifier.startpage4410en_US
dc.identifier.urihttps://doi.org/10.1021/acs.inorgchem.0c02939
dc.identifier.urihttps://hdl.handle.net/11454/76948
dc.identifier.volume60en_US
dc.identifier.wosWOS:000637850300030en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofInorganic Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAggregation-Induced Emissionen_US
dc.subjectIridium(Iii) Complexesen_US
dc.subjectCorrelation-Energyen_US
dc.subjectStateen_US
dc.subjectApproximationen_US
dc.subjectPotentialsen_US
dc.subjectBipyridineen_US
dc.subjectStrategyen_US
dc.subjectExchangeen_US
dc.subjectBandsen_US
dc.titleStructure-Property Relationship in Amber Color Light-Emitting Electrochemical Cell with TFSI Counteranion: Enhancing Device Performance by Different Substituents on N boolean AND N Liganden_US
dc.typeArticleen_US

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