| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
분자전자소재 및 소자 |
| 제목 |
Effect of the Concentration of Ionic Liquids on Device Performance in Hybrid Solar Cells |
| 초록 |
We investigate the effect of concentration of ionic liquids (IL) on device performance and optimize the device configuration by varying infiltration condition of poly (2-methoxy-5-(2'-ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV) and IL concentration. We observe the trend that short circuit current decreased and open circuit voltage increased with increasing the IL concentration which is attributed to interruption of charge transfer from MEH-PPV to TiO2 and the changes in interfacial energy level, respectively. Optimized device with IL layer of 0.01 wt.% showed ~120 % improved power conversion efficiency (PCE) compared to PCE of reference device without IL layer due to better charge transfer, enhanced electric field and reduction of inherent incompatibility between MEH-PPV and TiO2. |
| 저자 |
최효성, 조희숙, 박수진, 김진영
|
| 소속 |
울산과학기술대 |
| 키워드 |
ionic liquids; hybrid solar cells
|
| E-Mail |
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