High Energy Gap OLED Host Materials for Green and Blue PHOLED Materials


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    • IEEE  status
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      Views: (2009)   Date: (Publication Date: June 2009)   Pages: ()
    • Author:  Lin  C.-J. Huang  H.-L. Tseng  M.-R. Cheng  C.-H.  

    • Abstract:  Abstract In this paper, we developed a series of novel arylamino-containing spiro triplet state host materials for green and blue phosphorescent emitters. With high enough energy gap and compatible HOMO, LUMO levels, we demonstrated the green PHOLED with a low driving voltage of 2.5 V and a high power efficiency of 38.5 lm/W. We also demonstrated blue PHOLED with a very low driving voltage of 3.0 V and a current efficiency of 9.2 cd/A.

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