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DCM2와 Rubrene이 첨가된 TPD/Alq_3 유기 전계발광 소자의 발광 특성
조황신,이민욱,경충현,양해석 中央大學校 基礎科學硏究所 2001 基礎科學硏究所 論文集 Vol.15 No.-
TPD/ALq_3 organic electroluminescent(EL) devices doped with DCM2 and/or rubrene are fabricateed. Luminescent characteristics of these EL devices are investigated. It is found that TPD/ALq_3:DCM2,rubrene EL devices, as compared to TPD/ALq_3:DCM2 EL devices, have lower threshold voltages and higher EL efficiencies as well as reduced intensity of emission peak due to ALq_3 in EL spectra. These improvements in EL characteristics upon rubrene codoping can be attributed to the direct formation of rubrene excitons as well as th the possible energy transfer from rubren to DCM2.