| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Structural Optimization of Naphthalenediimide-Bithiophene (NDI-T2)-Based n-type Polymers via Side Chain Engineering for High Performance All-Polymer Solar Cells |
| 초록 |
The (NDI-T2)-based N-type polymer, (P(NDI2OD-T2)) has been widely studied for OTFTs and all-PSCs due to their high electron mobility and an unconventional micromorphology. To understand the infleunce of side chains on all-PSCs properties, a series of NDI-T2-based n-type polymers with side chains of 2-hexyldecyl (2HD), 2-octyldodecyl (2OD), and 2-decyltetradecyl (2DT) was synthesized. We performed DSC, and GIXS to investigated the effects of the length of side chains on their crystalline structures. The P(NDI2HD-T2) with the shortest side chains exhibited the noticeable crystalline behaviors with face-on orientation as compared to P(NDI2OD-T2) and P(NDI2DT-T2). Then, we prove that P(NDI2HD-T2) could be more efficient candidate for acceptor materials of all-PSCs than P(NDI2OD-T2) by fabricating all-PSCs with various promising donor polymers such as PPDT2FBT, PTB7, and PTB7-Th, leading to PCEs of 6.11%. This efficiency is the highest value for NDI-T2 based all-PSCs thus far. |
| 저자 |
김범준1, 오준학2, Kin Liao3, 유호정2, 이원호1, 김영권1
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| 소속 |
1KAIST, 2POSTECH, 3Khalifa Univ. |
| 키워드 |
All polymer solar cell; side chain; n-type polymer
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| E-Mail |
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