期刊
MACROMOLECULES
卷 50, 期 3, 页码 891-899出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.6b02475
关键词
-
资金
- PRESTO program [JY220176]
- Japan Science and Technology Agency (JST)
- KAKENHI, Japan Society for the Promotion of Science (JSPS) [16H06049]
- National Research Foundation (NRF) of Korea [2011-0028678]
- Ministry of Science, ICT & Future Planning (MSIP)
- Ministry of Education, Republic of Korea
- Innovative Flex Course for Frontier Organic Material Systems (iFront) at Yamagata University
- Korean Government [NRF_2015R1A2A2A01003743, NRF_2016H1D5A1910319]
- Grants-in-Aid for Scientific Research [16H06049] Funding Source: KAKEN
- National Research Foundation of Korea [PAL-2017] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A series of novel pi-conjugated copolymers based on 2,2'-bis(1,3,4-thiadiazole) (BTDz) have been developed. Among them, the BTDz-based donor-acceptor alternating copolymer with the (E)-1,2-di(3-(2-ethylhexyl)thiophene)vinylene donor unit (PBTDzTV) exhibited a high solubility and high crystallinity. PBTDzTVs favorably self assembled, forming face-on and edge-on multibilayer structures in thin nanoscale films. The relative volume fractions of these structures varied depending on the polymer's molecular weight. The higher molecular weight polymer formed a higher volume fraction of the face-on structure; in particular, the polymer with a 26.6 kDa of number-average molecular weight made only the face-on structure. The device performance was improved as the polymer molecular weight and the volume fraction of the face-on structure increased. The bulk-heterojunction photovoltaic device based on PBTDzTV:PC71BM demonstrated the high power conversion efficiency (PCE) of 8.04% when the device was fabricated with the highest molecular weight polymer having the face-on structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据