| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Indolocarbazole-Based Host Compounds for Solution-Processed Tandem OLEDs |
| 초록 |
The development of solution-processed phosphorescent tandem organic light-emitting diodes (OLEDs) exhibiting high efficiency is reported. The OLED comprises two light-emitting units (LEUs) connected by an interconnecting unit and employs solution processable materials. One of most difficult tasks in the fabrication of the OLEDs is to form a multilayer structure without dissolving underlayer during coating of upper layer. The developed new host materials exhibit high tolerance to methanol. The upper-layer adjacent to the light-emitting layer consists of ZnO nanoparticles, which could be dispersed in methanol by improving the preparation method. This results in the successful fabrication of a solution-processed tandem OLED comprising two LEUs. The maximum external quantum efficiency (EQE) of the tandem device is 23%, and the EQE is 22% even at a high luminance of 10 000 cd m-2. |
| 저자 |
Yong-Jin Pu1, Satoru Ohisa2, Hitoshi Fukuda2, Tatsuya Takahashi2, Masahiro Igarashi2, Tatsuya Hikichi2, Ryutaro Komatsu2, Emi Ueki2, Takayuki Chiba2, Junji Kido2
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| 소속 |
1RIKEN Center for Emergent Matter Science (CEMS)/Yamagata Univ., 2Yamagata Univ. |
| 키워드 |
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| E-Mail |
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