https://scholars.lib.ntu.edu.tw/handle/123456789/626217
標題: | Biphenylvinylene quinolinol derivatives and their light-emitting properties | 作者: | Chang Y.-J JYE-SHANE YANG Chang Y.J Chow T.J. |
關鍵字: | biphenyl; bisquinoline; electroluminescence; hydroxyquinoline; OLED; PPV | 公開日期: | 2022 | 來源出版物: | Journal of the Chinese Chemical Society | 摘要: | A series of poly(p-phenylenevinylene) (PPV) type dyes: QoBp, QoBm, QpBp, and QpBm containing biphenyl (B) and 8-alkoxyquinoline (Q) moieties connected at either ortho (o) or para (p) position are synthesized for the application of organic light-emitting diodes. The structure design takes the advantages of the good luminescent property of biphenylvinylene and the electron transporting nature of quinolinol. Two polymeric materials: poly-QoBp and poly-QoAp were also prepared, whereas the biphenyl moiety of the latter was replaced by a para-hydroquinone (Ap) moiety. All compounds exhibited high thermal stability with Td values exceeding 300°C. A typical blue light device made with QoBp showed a turn-on voltage of 4 V, a maximal intensity of 2.30 × 103 cd/m2 at 20 V, and a highest external quantum efficiency (EQE) of 0.43%. Devices of the polymers were made by doping into PVK. The device made with poly-QoBp exhibited a turn-on voltage of 9.5 V, and a maximal intensity of 360 cd/m2 at 15 V. A white light device was made successfully by the combination of the blue emission of QoBp and the red emission of 2,3-bisindolyl-N-methylmaleimide. It showed a maximal intensity of 940 cd/m2 at 15 V with a highest EQE of 0.14%. © 2022 The Chemical Society Located in Taipei & Wiley-VCH GmbH. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85131816987&doi=10.1002%2fjccs.202200165&partnerID=40&md5=aa826cd73fb7078592130a6c0f8e2d95 https://scholars.lib.ntu.edu.tw/handle/123456789/626217 |
ISSN: | 00094536 | DOI: | 10.1002/jccs.202200165 |
顯示於: | 化學系 |
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