simulations for organic light - emitting diodes
نویسندگان
چکیده
The physical and chemical properties of tris(8-hydroxyquinolinato)aluminum (Alq3), one of the organic materials most commonly used as the light-emitting layer of OLEDs, and the interface with possible metal cathodes are investigated by means of first-principles computer simulations. A number of new insights have emerged from this study, and we emphasize the consequences of the properties thus discovered with respect to the functioning of OLED devices. In particular, novel Alq3 derivatives can be designed with the aid of computations that should enhance the intrinsic luminescence of the pristine material.
منابع مشابه
Thin-film Encapsulation of Organic Light-Emitting Diodes Using Single and Multilayer Structures of MgF2, YF3 and ZnS
In this research, the lifetime of green organic light emitting diodes (OLEDs) is studied using four passivation layers. To encapsulate the OLEDs, MgF2, YF3, composed of alternating MgF2/ZnS and YF3/ZnS layers were grown by thermal vacuum deposition. Measurements show that the device lifetime is significantly improved by using YF3 and ZnS as passivation layers. However, diodes encapsulated by Mg...
متن کاملStudy of temperature sensitive optical parameters and junction temperature determination of light-emitting diodes
Related Articles Causes of driving voltage rise in phosphorescent organic light emitting devices during prolonged electrical driving Appl. Phys. Lett. 101, 173502 (2012) Effect of diamond like carbon layer on heat dissipation and optoelectronic performance of vertical-type InGaN light emitting diodes Appl. Phys. Lett. 101, 171102 (2012) A new model for optimization of organic light-emitting dev...
متن کاملHigh-efficiency organic polymer light-emitting heterostructure devices on flexible plastic substrates
Articles you may be interested in High-contrast organic light-emitting diodes on flexible substrates Appl. High-performance polymer light-emitting diodes doped with a red phosphorescent iridium complex Appl. High-efficiency, low-drive-voltage, semitransparent stacked organic light-emitting device Appl.
متن کاملImproved hole-injection contact for top-emitting polymeric diodes
Articles you may be interested in Lithium fluoride injection layers can form quasi-Ohmic contacts for both holes and electrons Appl. Efficient inverted top-emitting organic light-emitting diodes using ultrathin MoO 3 / C 60 bilayer structure to enhance hole injection Appl. Tuning hole injection and charge recombination with self-assembled monolayer on silver anode in top-emitting organic light-...
متن کاملOn the origin of the redshift in the emission wavelength of InGaN/GaN blue light emitting diodes grown with a higher temperature interlayer
Related Articles Multilayered graphene anode for blue phosphorescent organic light emitting diodes Appl. Phys. Lett. 100, 133304 (2012) Multilayered graphene anode for blue phosphorescent organic light emitting diodes APL: Org. Electron. Photonics 5, 82 (2012) Electroluminescence from strained germanium membranes and implications for an efficient Si-compatible laser Appl. Phys. Lett. 100, 13111...
متن کاملTexturing the cathode of white organic light-emitting diodes with a lattice of nanoscale scatterers for enhanced light out-coupling
The external quantum efficiency of white organic light-emitting diodes is often limited by light out-coupling losses due to surface plasmons. We demonstrate how texturing of the metal-cathode surface using a two-dimensionally periodic lattice of nanoscale scatterers with limited disorder can be used to reduce plasmonic losses while simultaneously enhancing both the light out-coupling and the sp...
متن کامل