| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Structural Investigation of Naphthalenediimide-Bithiophene (NDI-T2)-Based n-type Polymers via Side Chain Engineering for Efficient All-Polymer Solar Cells |
| 초록 |
The naphthalenediimide-bithiophene based n-type polymer, P(NDI2OD-T2) has been widely studied for organic thin film transistors (OTFTs) and all-polymer solar cells (all-PSCs) due to their high electron mobility. 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, UV-vis absorption spectroscopy, and GIXS to investigate the effects of the length of side chains on their crystalline structures. The P(NDI2HD-T2) exhibited the noticeable crystalline behaviors with face-on orientation as compared to P(NDI2OD-T2) and P(NDI2DT-T2). Then, we proved 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%. |
| 저자 |
김범준1, 오준학2, Cheng Wang3, Kin Liao4, 김동준1, 유호정2, 이창연1, 이원호1
|
| 소속 |
1한국과학기술원, 2포항공과대, 3Lawrence Berkeley National Laboratory, 4Khalifa Univ. of Science Technology & Research |
| 키워드 |
Conjugated polymer; field effect transistors; all-polymer solar cells; P(NDI2OD-T2)
|
| E-Mail |
|
