Determination of internal quantum efficiency of OLEDs with the consideration of the Purcell effect

• Organic light-emitting devices (OLEDs) with various device configurations have been the subjects of intensive research due to their applications in display and lighting [1-4]. Considering the microcavity effect, OLEDs can be roughly categorized into two types, i.e., weak microcavity OLEDs and strong microcavity OLEDs. Conventional bottom emitting OLEDs are weak microcavity devices while OLEDs with distributed Bragg reflectors or two metallic electrodes are considered as strong microcavity devices. Light emission properties, including the internal quantum efficiency (IQE), external quantum efficiency, exciton lifetime and angular dependence, are distinct in the two types of OLEDs due to the Purcell effect [5-8].

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Annan teknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies (hsv//eng)

Nyckelord

Angular dependence

Bottom emitting

Device configurations

Exciton lifetime

External quantum efficiency

Intensive research

Internal quantum efficiency

Light emission properties

Metallic electrodes

Microcavity devices

Microcavity effects

Microcavity OLEDs

Organic light-emitting devices

Purcell effect

Display devices

Light emission

Manufacture

Microcavities

Three dimensional

Quantum efficiency

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