Organic light-emitting diodes stabilizers

Y.J. Viktor, Organic Light-Emitting Diode Devices with Improved Operational Stability, U.S. Patent 0,076,853 A1 (2004). 

J.S. Kim, R.H. Friend, and F. Cacialli, Improved operational stability of polyfluorene-based organic light-emitting diodes with plasma-treated indium-tin-oxide anodes, Appl. Phys. Lett., 74 3084-3086, 1999. 

Several articles have addressed the possibility of using dendritic molecules as electroluminescent materials in organic light-emitting diodes (LEDs) [140-148]. For example, compound 70 works as an excellent hole transport material, and has been incorporated into multilayer devices that exhibit high luminance efficiency and significant thermal stability [140, 141, 144],... 

T.Y.-H. Lee, Q. Wang, J.U. Wallace, S.H. Chen, Temporal stability of blue phosphorescent organic light-emitting diodes affected by thermal annealing of emitting layers. J. Mater. Chem. 22, 23175-23180 (2012)... 

Since this polymer has a high thermal stability and an amorphous morphology, it should be a promising candidate as a hole blocking material for organic light-emitting diodes [57]. 

Deep-blue organic light-emitting diodes have been produced that are based on multibranched oligofluorenes with a phosphine oxide centre. A series of these compounds were produced (Scheme 13.27) and the compounds showed excellent thermal stabilities, pronounced photoluminescence efficiencies, and good solution processability. Double-layered non-doped OLEDs based on these materials exhibited highly efficient deep-blue electroluminescence. 

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