| 초록 |
Polymer:fullerene solar cells have attracted great attention for the last two decades because of their potential for flexible/lightweight solar modules, which can be fabricated by employing continuous roll-to-roll (R2R) processes at low temperatures. The power conversion efficiency has recently passed over 10% by using a tandem device structure. However, the lifetime issue of polymer:fullerene solar cells has not been seriously approached so far, even though the polymer:fullerene bulk heterojunction structures may bear a fundamental drawback in terms of morphological instability. As a part of resolving the lifetime issue, we have tried ternary blend approaches by reducing the content of fullerene molecules. In this presentation, we show a charge-bridging polymer approach for polymer:fullerene solar cells. |
