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31.4: Invited Paper: Long‐lifetime Blue Organic Light‐emitting Diode

Po-Chen Tseng,Ming-Zer Lee,Julie Hsieh,Stanley Chen,Jiun-Haw Lee

SID Symposium Digest of Technical Papers（2018）

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Abstract
36% elongation of operation lifetime was achieved in a blue triplet‐triplet annihilation organic light‐emitting diode (TTA‐OLED) by using a new hole‐transporting layer (HTL) material, which exhibited suitable highest occupied molecular orbital (HOMO) level for hole‐injection, and had high hole‐mobility to improve carrier balance. Besides, it was robust against electron accumulation between the interface of the HTL and the emitting layer.
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Key words
diode,organic,long-lifetime,light-emitting
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