Electroluminesent properties of phenothiazyl derivatives having aromatic moieties

Soo Kang Kim, In Nam Kang, Jong Wook Park, Kyoung Soo Kim, Cheol Kyu Choi, Sang Do Lee, Sang Wook Kim

Research output: Contribution to journalConference articlepeer-review

Abstract

We report the synthesis and electroluminescent properties of new aromatic compounds as hole-transporting materials based on phenothiazine, such as 1,4-diphenothiazyl-benzene [DPtzB], 1,4-diphenothiazyl-xylene [DPtzX] and 9,10-diphenothiazyl-anthracene [DPtzA]. DPtzB thin film exhibited photoluminescence (PL) maximum emission peak and emission shoulder at 450 and 475nm, and maximum emission at 441 nm without emission shoulder was found in DPtzX thin film. When DPtzA was excited by incident light of 359nm, DPtzA showed strong PL emission at 417nm and weak emission at 600nm. Luminance efficiency of DPtzB, DPtzX and DPtzA-based electroluminescence (EL) devices was 3.57, 3.46 and 0.47cd/A, and power efficiency of DPtzB, DPtzX and DPtzA-based EL devices was 1.48, 1.26 and 0.20lm/W.

Original languageEnglish
Pages (from-to)1054-1058
Number of pages5
JournalProceedings of International Meeting on Information Display
Volume2006
Publication statusPublished - 2006
EventIMID/IDMC 2006: 6th Internaional Meeting on Information Display and the 5th International Display Manufacturing Conference - Daegu, Korea, Republic of
Duration: 22 Aug 200625 Aug 2006

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