| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Enhancement of fill factor via increase of crystallinity in fullerene based small molecule organic photovoltaic cells using copper iodide as a templating layer |
| 초록 |
The crystallinity of donor:acceptor blend layer is important for effective charge extraction because it significantly influences the charge mobility in bulk heterojunction photovoltaic cells. We report that improvement of the crystallinity of C70 increases the fill factor in fullerene based small molecule organic photovoltaic cells. The X-ray diffraction (XRD) patterns reveal that the formation of a (111) oriented FCC phase of C70 and the enhancement of the crystallinity of C70 grown on a CuI layer on hole extraction layer, resulting in the increased hole mobility from 8.32×10-6 cm2/Vs to 3.26×10-5 cm2/Vs and the fill factor from 0.51 to 0.57 to increase the power conversion efficiency from 5.5% to 6.2% with a short circuit current density (JSC) of 12.0 mA/cm2 and open circuit voltage (VOC) of 0.91 V under simulated AM 1.5G. |
| 저자 |
최민수1, 김태민1, 심현섭1, 김범수1, 김효정2, 김장주1
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| 소속 |
1서울대, 2부산대 |
| 키워드 |
organic photovoltaic; templating layer; copper iodide; C70; low-donor concentration
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| E-Mail |
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