| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
분자전자 부문위원회 Ⅱ |
| 제목 |
Interface engineering for high efficient non-fullerene polymer solar cells |
| 초록 |
In current, the low-conductivity PEDOT:PSS is mainly utilized in contemporary solar cells. Thus, the contact between ITO and PEDOT:PSS is not ohmic anymore. Despite the high possibility that there are serious interface problems, little attention has been paid to the interface between PEDOT:PSS and ITO. In this work, we have employed a conjugated polyelectrolyte (WPFSCz-) between ITO and low-σ PEDOT:PSS to overcome organic-inorganic interfacial problems. Insertion of the WPFSCz- layer provides substantial advantages in the operation of the polymer solar cells. First, WPFSCz- layer modifies the work-function of the ITO, thereby forming effective cascading energy alignment. Second, the WPFSCz- layer eliminates interfacial trap sites, resulting in an improvement of fill factor. These effects result in a significant increase in the efficiency of non-fullerene solar cells based on PM6 and Y6, from 15.86 to 17.34%. |
| 저자 |
조신욱1, 박수정1, Febrian Tri Adhi Wibowo2, 오승환3, 장성연2
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| 소속 |
1울산대, 2울산과학기술원, 3첨단방사선(연) |
| 키워드 |
Organic solar cells; Hole transport layer; Conjugated polyelectrolyte; Cascading energy alignment; Surface potential modification
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| E-Mail |
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