| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Bipolar Host System Bearing Polymeric Donor and Small Molecular Acceptor for Thermally Activated Delayed Fluorescence OLEDs |
| 초록 |
From the past, many kinds of polymeric hosts have been designed and synthesized for solution-processable organic light-emitting diode (OLED). Among them, side-chain host polymers have some advantages because their energy levels and mobility could be easily tuned by using various host pendants. Moreover, in order to improve the charge balance of them, a single bipolar host or dual host with hole and electron character was introduced. However, they have some demerits, such as complicated synthetic routes or reproducibility of polymerization. To solve these problems, mixed host system has been developed by using polymeric host and small molecular host. In this study, we synthesized polymeric hosts as hole character and small molecular hosts as electron character for the mixed host system. Blend film showed homogeneity of film surface and improved charge balance. Corresponding green thermally activated delayed fluorescence OLED with the blend hosts exhibited highly improved efficiencies. |
| 저자 |
조승욱, 최동훈, 권나연, 김채원, 김형종, 조민주
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| 소속 |
고려대 |
| 키워드 |
Organic Light Emitting Diode; Thermally Activated Delayed Fluorescence; Bipolar Host
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| E-Mail |
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