Electroluminescence in organic light emitting diodes

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...

On the origin of the redshift in the emission wavelength of InGaN/GaN blue light emitting diodes grown with a higher temperature interlayer

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Exciplex Electroluminescence of the New Organic Materials for Light-Emitting Diodes

1 . 54 m electroluminescence from erbium ( III ) tris ( 8 - hydroxyquinoline ) ( ErQ ) - based organic light - emitting diodes

Articles you may be interested in Silicon-based organic light-emitting diode operating at a wavelength of 1.5 m Humidity-induced crystallization of tris (8-hydroxyquinoline) aluminum layers in organic light-emitting devices Appl.

Electroluminescence of Conjugated Aromatic Polymers in Organic Light Emitting Diodes

Organic electroluminescent materials have been the subject of intense research for use in light emitting diodes (LEDs). When compared with liquid crystal displays (LCDs), organic light emitting diodes (OLEDs) require lower energy input, have a wider viewing angle with improved color contrast, and can be made much thinner. The electroluminescence (EL) of organic compounds was first demonstrated ...

Nanosecond transient electroluminescence from polymer light-emitting diodes

The transient electroluminescence from polymer light-emitting diodes is reported. When the devices are mounted on a microstrip transmission line, the temporal response is limited by the electrode geometry, with rise and fall times below 50 ns. With low duty-cycle pulses (0.5%) the electroluminescence intensity remains proportional to the current at values up to 10 A/cm2, two orders of magnitude...