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Blue Electroluminescence and Dynamics of Charge Carrier Recombination in a Vacuum-Deposited poly(p-phenylene) Thin Film

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dc.contributor.authorLee, Changhee-
dc.contributor.authorKang, G. W.-
dc.contributor.authorJeon, J. W.-
dc.contributor.authorSong, W. J.-
dc.contributor.authorSeoul, Chang-
dc.date.accessioned2009-11-23T05:18:04Z-
dc.date.available2009-11-23T05:18:04Z-
dc.date.issued2000-
dc.identifier.citationThin Solid Films 363 (2000) 306en
dc.identifier.issn0040-6090-
dc.identifier.urihttps://hdl.handle.net/10371/13759-
dc.description.abstractWe have studied the electroluminescence (EL) and the dynamics of charge carrier recombination in the vacuum-deposited poly(p-phenylene) (PPP) thin film that shows a bright blue EL emission at about 450 nm. The current–voltage–luminescence (I–V–L) characteristics are systematically studied in the temperature range between 12 and 325 K in the light-emitting devices of ITO/PPP/Al and the bilayer devices with hole transporting layers of aromatic diamine (TPD) and poly(9-vinylcarbazole) (PVK). The EL quantum efficiency (QE) of ITO/PPP/Al and ITO/PVK/PPP/Al is almost temperature-independent, indicating carrier injection via tunnelling mechanism. However, ITO/TPD/PPP/Al shows the increasing QE with decreasing temperature and the power-law I–V–L dependence, characteristics of a space-charge-limited current in a trap-filled insulator. From the time delay between the onset of the voltage pulse and that of the EL we can estimate the charge carrier mobility of μ≈4×10−6 cm2/V s in ITO/PPP/Al and μ≈5×10−5 cm2/V s in ITO/PVK/PPP/Al.en
dc.language.isoen-
dc.publisherElsevieren
dc.subjectBlue electroluminescenceen
dc.subjectCharge carrier recombinationen
dc.subjectThin filmen
dc.subjectI-V-L characteristicsen
dc.titleBlue Electroluminescence and Dynamics of Charge Carrier Recombination in a Vacuum-Deposited poly(p-phenylene) Thin Filmen
dc.typeArticleen
dc.contributor.AlternativeAuthor이창희-
dc.contributor.AlternativeAuthor설장-
dc.identifier.doi10.1016/S0040-6090(99)01023-8-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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