| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Greatly Efficient Polymer-Based Optoelectronics Using PEDOT:GO Composite as an Alternative to PEDOT:PSS |
| 초록 |
We demonstrate greatly efficient PLEDs as well as PSCs using a solution-processable PEDOT:PSS:GO (PEDOT:GO) composite layer as HTLs. The PEDOT:GO composite HTL layer shows enhanced charge carrier transport because of improved conductivity by altering PEDOT chain from benzoid to quinoid conformation with a well-matched workfunction between GO and PEDOT:PSS. Besides, it reduces remarkably exciton quenching and suppresses recombinations that bring higher charge extraction in PSCs and increases the recombinations of electrons and holes within the active layer by the blocking behavior of electrons from a fluorescent semiconductor due to the existence of GO with large bandgap in the PEDOT:GO composite layer, therefore leading to an improvement of device efficiency in PLEDs and PSCs. The optimized PLEDs and PSCs with a PEDOT:GO composite HTL layer were enhanced by approximately 220 and 120 %, respectively, compared to reference PLEDs and PSCs with PEDOT:PSS layer. |
| 저자 |
유재철1, 장정인2, 이보람3, 한중탁2, 송명훈3
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| 소속 |
1울산과학기술대, 2KERI, 3UNIST |
| 키워드 |
PEDOT:PSS; GO; PLED; PSC
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| E-Mail |
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