Characteristics and stability of organic EL device using a polymer hole transport material doped by fluorescent dye

초록

We fabricated a novel organic electroluminescent (EL) device using a poly[N-(p-diphenylamine)phenyl methacrylamide]], PDPMA doped by nile red as a polymer hole transport material, The fluorescent dye was used as a guest emitting material. The ITO/nile red doped PDPMA/Alq(3)/Al device emitted red light with high brightness of 1000 cd/m(2) and showed considerable stability over long duration. The optoelectrical properties and EL characteristics of the organic multilayered device were investigated. Especially, we have examined the feasibility of application as an organic EL device with color tuning function.

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