Light output measurements of the organic light-emitting devices

Articles you may be interested in Highly efficient, single-layer organic light-emitting devices based on a graded-composition emissive layer Appl. Star-configured carbazole as an efficient near-ultraviolet emitter and hole-transporting material for organic light-emitting devices Appl. Improved performance and stability of organic light-emitting devices with Al–Cu alloy cathode Appl. Electroluminescence of 2,4-bis(4-(2 ′-thiophene-yl)phenyl)thiophene in organic light-emitting field-effect transistors Appl. In this article we describe a novel light output measurements method of the organic light-emitting devices ͑OLEDs͒. This method not only provides the electroluminescence ͑EL͒ spectral response of the OLEDs, but also gives the spectral distribution of the radiant power ͑W͒, luminance (cd/m 2), luminous flux ͑lm͒, and photon emission of the measured light-emitting object. Also an accurate calculation method of the OLED EL external quantum efficiency is proposed.