| 학회 |
한국화학공학회 |
| 학술대회 |
2003년 봄 (04/25 ~ 04/26, 순천대학교) |
| 권호 |
9권 1호, p.168 |
| 발표분야 |
공업화학 |
| 제목 |
Improvement of OLEDs efficiency with reducing metal impurities |
| 초록 |
Metal impurities in organic light emitting diodes (OLEDs) can have an influence on the reduction of device performance and efficiency., Tris (8-hydroxyquinoline) aluminum, was introduced as a light emitting and electron transfer material for OLEDs. Metal impurities of synthesized-Alq3 make fatal effects to OLEDs. NaCl was mainly used to reduce water-soluble impurities. In this study, EDTA and DTPA were used as dedopping agents. These agents have a better capacity of getting rid of metal impurities specially Fe2+, Cu2+ etc. During the batch and continuous purifying process including recrystallization, evaporation, filtering, and sublimation processes. Alq3 layer was thermally evaporated onto the ITO-coated glass substrates. The observed IVL curve of Alq3 treated with dedopping agents suggests that interact with metal impurities. The performance of OLEDs would be affected by presence of Fe2+, Cu2+ etc. |
| 저자 |
이정한, 이우창, 오병근, 신선호, 오세용, 이원홍, 최정우
|
| 소속 |
서강대 |
| 키워드 |
OLEDs; efficiency; Alq3
|
| E-Mail |
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