High color stability white OLED with an exterior sandwiched color conversion layer

Investigating the influence of substituent groups in TTM based radicals for the excitation process: a theoretical study

“…As a promising class of electroluminescent devices, organic light-emitting diodes (OLEDs) have broad applications in displays and lighting fields with the advantages of a wide operating temperature range and fast response. [1][2][3][4][5][6] Traditional OLED materials are mostly metal-organic complexes, which exhibit phosphorescence illuminating properties based on the metal-ligand charge transfer (MLCT) nature. 7,8 An inherent disadvantage of phosphorescent OLEDs is problem of transition resistance, which may lead to a relatively long life time of light emitting diodes and thus increase the possibility of a nonradiative charge transfer process.…”

A morphological study of random nanostructured external light extraction layers for enhancing optical characteristics of OLEDs

“…[18][19][20][21][22][23] On the other hand, nanostructure-based light extraction techniques offer advantages for application on flexible substrates. As a result, nanostructure-based technologies for improving light extraction efficiency in OLEDs have gained attention, encompassing various forms such as random wrinkled structure, [24][25][26][27] nano-particle embedded layers, [28][29][30] micro-porous films, 31 polymer-nanoparticle composites, 32,33 and nano-pillars. 34 These external light extraction approaches can be easily integrated into the device without disturbing its internal structure.…”

Preparation and luminescent properties of multicolored SrAl2O4:Eu2+, Dy3+/SiO2-coated red-emitting coumarin color converter/polyamide 6 luminous fiber with warm-toned luminescence

“…Yang et al. 10 obtained a blue organic light-emitting diode (LED) with white luminescence using an inorganic red aluminate phosphor as the color converter.…”

“…8 Xia et al 9 combined CaAl 2 O 4 :Eu, Nd as a persistent blue donor phosphor with Lu 3 Al 5 O 12 :Ce and four other conversion phosphors to obtain colorful persistent luminescence spectra. Yang et al 10 obtained a blue organic light-emitting diode (LED) with white luminescence using an inorganic red aluminate phosphor as the color converter.…”