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- W2006082117 abstract "Abstract Time resolved electroluminescence of Alq 3 based organic light emitting devices was measured on a millisecond time scale. The millisecond delayed electroluminescence (DEL) was detected at 80 K and 26 K, while no long lived electroluminescence was observed at room temperature. The DEL spectrum consists of two components centered at ∼2.3 and ∼1.9 eV. The shape of the high energy band is similar to the prompt fluorescence emission peak, although a systematic red shift of about 30 meV is reproducibly found. The low-energy band position corresponds to the phosphorescence of Alq 3 . The time decay of both bands is nonexponential, with the low energy band decaying slower. To explain dependencies of intensities of both components on the delay and the injection-current density a mechanism based on enhancement of the triplet-exciton radiative decay by carriers trapped in deep intragap traps is proposed." @default.
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- W2006082117 date "2007-04-01" @default.
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- W2006082117 title "Intragap-trapped-carriers enhancement of the low-temperature delayed phosphorescence in Alq3" @default.
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- W2006082117 doi "https://doi.org/10.1016/j.orgel.2006.12.004" @default.
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