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4,4',4''-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA), a starburst type molecule, gives very homogeneous thin-films that are ideal as hole-injection layers due to its low ionisation potential (of around 5.1 eV ).
It has been demonstrated that p-i-n organic light-emitting diodes (OLEDs) incorporating a p-doped transport layer that comprises tungsten oxide (WO3) and 2-TNATA significantly improves hole injection and conductivity of the Alq3based p-i-n OLEDs with long lifetime, low driving voltage (3.1 V), and high power efficiency (3.5 lm/W) at 100 cd/m2 .
Exciplex formation at the organic solid/solid interface and tuning of the emission color in organic electroluminescent devices, K. Okumoto et al., , J. Lumin. 87–89, 1171 (2000). doi:10.1016/S0022-2313(99)00584-0.
Highly Power Efficient Organic Light-Emitting Diodes with a p-Doping Layer, C-C. Chang et al., Appl. Phys. Lett., 89, 253504 (2006); doi: 10.1063/1.2405856.
Pure White Organic Light-Emitting Diode with Lifetime Approaching the Longevity of Yellow Emitter, J-H. Jou et al., ACS Appl. Mater. Interfaces, 3, 3134–3139 (2011). dx.doi.org/10.1021/am2006383.
Exceedingly efficient deep-blue electroluminescence from new anthracenes obtained using rational molecular design, S-K. Kim et al., J. Mater. Chem., 18, 3376–3384 (2008). DOI: 10.1039/B805062G.
Control of the Color Coordinates of Blue Phosphorescent Organic Light-Emitting Diodes by Emission Zone, S. H. Rhee et al., ECS Solid State Letters, 3 (3) R7-R10 (2014). DOI: 10.1149/2.003403ssl.
White organic light-emitting devices based on novel (E)-2-(4-(diphenylamino) styryl)quinolato zinc as a hole- transporting emitter, G. Ding et al., Semicond. Sci. Technol. 24, 025016 (2009). stacks.iop.org/SST/24/025016.
Effect of A Series of Host Material on Optoelectronic Performance of Red Phosphorescent OLED, H. Li et al., Chin. J. Luminance, 5, 585-589, 2009.
White top-emitting organic light-emitting diodes using one-emissive layer of the DCJTB doped DPVBi layer, M. Kim et al., Thin Solid Films 516, 3590–3594 (2008); doi:10.1016/j.tsf.2007.08.078.
High Efficiency White Organic Light-Emitting Diodes from One Emissive Layer, C. Jeong et al., Jpn. J. Appl. Phys., 46 (2), 806-809 (2007); http://iopscience.iop.org/1347-4065/46/2R/806.
High-Efficiency Green Phosphorescent Organic Light-Emitting Devices, L. Li et al., ICEOE, V4-96-97 (2011); DIO:10.1109/ICEOE.2011.6013434.
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