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Highly efficient, conventional and flexible deep-red phosphorescent OLEDs using ambipolar thiophene/selenophene-phenylquinoline ligand-based Ir(III) complexes

Title
Highly efficient, conventional and flexible deep-red phosphorescent OLEDs using ambipolar thiophene/selenophene-phenylquinoline ligand-based Ir(III) complexes
Authors
Cho, W[Cho, Woosum]Sarada, G[Sarada, Ganguri]Lee, H[Lee, Hyungjin]Song, M[Song, Myungkwan]Gal, YS[Gal, Yeong-Soon]Lee, Y[Lee, Youngu]Jin, SH[Jin, Sung-Ho]
DGIST Authors
Lee, H[Lee, Hyungjin]; Lee, Y[Lee, Youngu]
Issue Date
2017-01
Citation
Dyes and Pigments, 136, 390-397
Type
Article
Article Type
Article
Keywords
Deep-Red EmissionEfficiencyElectrodesExternal Quantum EfficiencyFlexible Organic Light-Emitting DiodeHomoleptic Ir(Iii) ComplexIR Complexes (III)IridiumITO GlassLight-Emitting DiodesLight EmissionOrganic Light-Emitting Diodes (OLEDs)PhosphorescencePolarizabilitiesPolarizabilityQuantum EfficiencyRed EmissionsSemiconducting Selenium CompoundsThiopheneTin OxidesTransparent Conducting ElectrodeTransparent Conducting Electrodes
ISSN
0143-7208
Abstract
Highly efficient conventional and flexible deep-red phosphorescent OLEDs (PhOLEDs) were developed by using glass (substrate)/indium tin oxide (ITO, transparent conducting electrode, TCE) and polyethylene naphthalate (PEN, substrate)/silver nanowire (AgNW, TCE). A thiophene-phenylquinoline (Th-PQ)-based Ir(III) complex, (Th-PQ)3Ir, which has already been confirmed as a promising emitter in solution-processed PhOLEDs, and a new selenophene-PQ (Se-PQ)-based Ir(III) complex, (Se-PQ)3Ir, were verified as emitters in conventional and flexible PhOLEDs. Both (Th-PQ)3Ir and (Se-PQ)3Ir exhibited bright red emission (601 nm and 614 nm) in chloroform at room temperature. (Th-PQ)3Ir showed excellent performance not only in solution-processed devices but also in the conventional and flexible PhOLEDs fabricated by vapor deposition. (Th-PQ)3Ir exhibited a maximum external quantum efficiency (EQE) of 19.83% and 21.33% in conventional and flexible PhOLEDs, respectively, with stable deep-red CIE coordinates (0.66, 0.34). © 2016 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/2060
DOI
10.1016/j.dyepig.2016.08.060
Publisher
Elsevier Ltd
Related Researcher
  • Author Lee, Youn Gu Organic & Printed Electronics Laboratory(OPEL)
  • Research Interests OTF Solar cell; OLED; Printed Electronics; 유기박막형 태양전지; OLED; Printed Electronics
Files:
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Collection:
Energy Science and EngineeringOrganic & Printed Electronics Laboratory(OPEL)1. Journal Articles


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