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- W2364357554 abstract "Organic light emitting diodes(OLED)employing an Ir complex with coumarin(C6)and acetylacetone(acac)ligands Ir(C6)_2(acac)are studied.This novel Ir complex can be used both as electron transporting material and light emitting dopant.Comparing the photoluminescence spectra of solid C6 and Ir(C6)_2-(acac),the self-quenching effect of molecules was found to be suppressed obviously.To a device structure of ITO(indium tin oxide)/TPD(N,N'-diphenyl-N,N'-bis(3-methyl-phenyl)-1,1'biphenyl-4,4'diamine)/Ir(C6)_2(acac)/BAlq(bis(2-methyl-8-quinolinolato-N1,O8)-(1,1'-biphenyl-4-olato)aluminum)/Alq_3(tris-(8-hydroxy-quinoline)aluminum)/Liq(8-hydroxyquinoline lithium)/Al,an orange color(Commission Interationale d'Eclairage(CIE)coordinates x=0.43;y=0.40)with a max luminance of 3 390 cd/m2 and an efficiency of 1.3 cd/A(quantum efficiency 1.3%)are achieved.Using Ir(C6)_2(acac)as dopant and Alq_3 as electron transporting host with the same structure,a green color(CIE coordinates x=0.29;y=0.58)and a max luminance of 8 832 cd/m2 and an efficiency of 5.6 cd/A(quantum efficiency 1.5%)are obtained.Mechanism of luminescence shows that the orange color luminescence of the device using Ir(C6)_2-(acac)as light-emitting layer origins from the triplet emission of Ir(C6)_2(acac)dominantly;the green color luminescence of the other device origins from the fluorescence of Alq_3,Ir(C6)_2(acac),and a little phosphorescence of Ir(C6)_2(acac)." @default.
- W2364357554 created "2016-06-24" @default.
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- W2364357554 date "2006-01-01" @default.
- W2364357554 modified "2023-09-23" @default.
- W2364357554 title "Dual Color OLEDs Using a Novel Ir Complex" @default.
- W2364357554 hasPublicationYear "2006" @default.
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