0000000000704024

AUTHOR

Debin Xia

0000-0002-2658-2577

showing 5 related works from this author

Oligofluorene with multiple spiro-connections: its and their use in blue and white OLEDs

2019

Bond rotation within molecules is regarded as one of the nonradiative decay pathways and is detrimental to high photoluminescence quantum yields. In this work, a bulky and rigid blue emitter (Spiro-F) with five spiro-carbon linkages is synthesized. Spiro-F can serve not only as an active component of blue organic light-emitting diodes (OLEDs), but also as a host and blue emitter of white OLEDs. The WOLED offers a low turn-on voltage of 3.5 V and a high current efficiency of 3.6 cd A−1, together with CIE coordinates of (0.29, 0.33). This work proves the potential of super-rigid oligofluorene emitters for OLEDs.

PhotoluminescenceChemistrybusiness.industry02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesCatalysis0104 chemical sciencesActive componentMaterials ChemistryOLEDMoleculeOptoelectronics0210 nano-technologybusinessDiodeCommon emitterNew Journal of Chemistry
researchProduct

Cruciform Electron Acceptors Based on Tetraindeno-Fused Spirofluorene

2017

Two cruciform tetraindenospirofluorene-based acceptors embedding carbonyl (Spiro-4O) and dicyanovinylene (Spiro-8CN) functionalities are synthesized in high yields. Single-crystal X-ray analysis reveals a one-dimensional π–π stacking arrangement for Spiro-4O, while Spiro-8CN adopts a unique two-dimensional isotropic π-interaction. Cyclic voltammetry suggests a high electron affinity of −3.76 eV for Spiro-8CN. Such a packing motif and low LUMO energy for Spiro-8CN are important for bulk electron transport.

chemistry.chemical_classification010405 organic chemistryStackingGeneral ChemistryElectron acceptor010402 general chemistryCondensed Matter Physics01 natural sciencesElectron transport chain0104 chemical sciencesCrystallographychemistryElectron affinity (data page)CruciformGeneral Materials ScienceCyclic voltammetryHOMO/LUMOCrystal Growth & Design
researchProduct

CCDC 1408336: Experimental Crystal Structure Determination

2017

Related Article: Debin Xia, Xin Guo, Manfred Wagner, Martin Baumgarten, Dieter Schollmeyer, Klaus Müllen|2017|Cryst.Growth Des.|17|2816|doi:10.1021/acs.cgd.7b00272

Space GroupCrystallographyCrystal SystemCrystal Structure33'99'-tetra-t-butyl-66'-spirobi[diindeno[12-b:2'1'-h]fluorene]-1212'1515'-tetrone unknown solvateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1408340: Experimental Crystal Structure Determination

2017

Related Article: Debin Xia, Xin Guo, Martin Baumgarten, Klaus Mullen|2016|CSD Communication|||

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstetraspiro{33'99'-tetra-t-butyl-1212'1515'-tetrahydro-66'-spirobi[diindeno[12-b:2'1'-h]fluorene]-129'':12'9''':159'''':15'9'''''-tetrakis(fluorene)} unknown solvateExperimental 3D Coordinates
researchProduct

CCDC 1408347: Experimental Crystal Structure Determination

2017

Related Article: Debin Xia, Xin Guo, Manfred Wagner, Martin Baumgarten, Dieter Schollmeyer, Klaus Müllen|2017|Cryst.Growth Des.|17|2816|doi:10.1021/acs.cgd.7b00272

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters22'2''2'''-(33'99'-tetra-t-butyl-66'-spirobi[diindeno[12-b:2'1'-h]fluorene]-1212'1515'-tetraylidene)tetrapropanedinitrile dichloromethane unknown solvateExperimental 3D Coordinates
researchProduct