| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터) |
| 권호 |
17권 2호 |
| 발표분야 |
플렉서블 OLED 기술의 최신 동향 |
| 제목 |
백색 OLED 발광층 에너지전이에 대한 분광학적인 연구 |
| 초록 |
We fabricated white organic light-emitting diodes with different thickness of the emissive layers using device structure of ITO/NPB/TCTA:Rubrene;BCzVBi/BPhen/Liq/Al. The emissive layer is composed of TCTA as host material, Rubrene as red dopant and BCzVBi as blue dopant to obtain white emission. The current density is obviously dependent on the layer thickness and controlled by physical properties in the bulk of the layers examining current-voltage characteristics. Through the spectroscopic analysis using multi-peak fits by Gaussian function to the electroluminescence spectrum, we obtained quantitatively relative light intensity of the two dopants as a function of the emissive layer thickness and the applied bias voltage. Energy levels of rubrene and BCzVBi provide useful information on the light emission mechanism and energy transfer in the host-dopant system in the emissive layer. |
| 저자 |
김우영, 문창범, 김유현
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| 소속 |
호서대 |
| 키워드 |
White OLED; Electroluminescence; Energy transfer; Gaussian function; Host-dopant
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| E-Mail |
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