| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Newly Designed Hole-Injection Layer using Polymeric Nanospheres/PEDOT:PSS Continuous phase Films for Highly Air Stable OLEDs |
| 초록 |
A PEDOT:PSS has been mostly used in solution-processable electronics due to its high electrical conductivity. However, it has suffered from long-term stability issues due to its acidic environments. Herein, we designed the anode buffer layer to improve the air stability through the facile blends of polystyrene nanospheres(PS NSs) and PEDOT:PSS. With PS NSs and PEDOT:PSS, we prepared the continuous phase films as HIL. Afterwards, we introduced these blend films into solution-processed OLEDs. In PS NSs devices, the EQE was almost same as the pristine PEDOT:PSS device up to φPS NSs =0.8. In addition, the air stability of PS NSs devices was dramatically improved. To elucidate the generality of this polymer blends approach, we expanded this study into the different system of vacuum evaporation OLEDs. Surprisingly, In this case, EQE was slightly improved according to increasing PS NSs contents in PEDOT:PSS. In addition, the air stability of PS NSs devices was also enhanced. |
| 저자 |
이창연1, 이재호2, 강동진3, 고태욱2, 김태수3, 유승협2, 김범준3
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| 소속 |
1KAIST, 2KAIST 전기 및 전자 공학, 3KAIST 생명화학공학 |
| 키워드 |
Polymer nanoparcle; Organic Light Emitting Diode; Air stability
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| E-Mail |
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