QIBEBT-IR  > 先进有机功能材料团队
Unexpected Opposite Influences of Para vs Ortho Backbone Fluorination on the Photovoltaic Performance of a Wide-Bandgap Conjugated Polymer
Cai, Mian1,2; Bao, Xichang1; Liu, Yan Fang1; Li, Chenchen1,2; Wang, Xiao1; Lan, Zhenggang1; Yang, Renqiang1; Wan, Xiaobo1,2; Zhenggang Lan,Renqiang Yang and Xiaobo Wan
2017-11-14
发表期刊CHEMISTRY OF MATERIALS
卷号29期号:21页码:9162-9170
摘要Fluorination density and regioregularity are known factors that have high impact on the performance of organic solar cells; however, due to the limited available fluorination positions, the influence of backbone fluorination positions (such as ortho, para, and meta) has not been well studied. Here we disclose that the fluorination position on a conjugated polymer backbone may have completely opposite effects on its performance. Specifically, compared to the nonfluorinated control, Devices fabricated with the conjugated polymer based on para-fluorinated dibenzo[c,h][2,6]-naphthyridine-5,11-(6H,12H)-dione (DBND) block exhibit improved power conversion efficiencies (PCEs) up to 6.55%, while devices fabricated with the conjugated polymer based on ortho-fluorinated DBND block exhibit much worse PCEs as low as 1.44%, although both polymers have similar HOMO/LUMO levels, bandgaps, and backbone torsion angles. It is found that different fluorination positions result in different dipole moments, intermolecular binding energies, and syn/anti conformer ratios, which eventually lead to the distinct phase-separation behaviors of the corresponding solar cells.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.chemmater.7b03025
关键词[WOS]POWER CONVERSION EFFICIENCY ; HETEROJUNCTION SOLAR-CELLS ; DONOR-ACCEPTOR POLYMERS ; BUILDING-BLOCK ; ELECTRONIC-PROPERTIES ; EXCEEDING 9-PERCENT ; COPOLYMERS ; DERIVATIVES ; ISOINDIGO ; DESIGN
收录类别SCI
语种英语
WOS研究方向Chemistry ; Materials Science
项目资助者National Science Foundation of China(NSFC51573204 ; Youth Innovation Promotion Association CAS(2016194) ; 21402220 ; 21607164 ; 51573205)
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000415911600028
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9826
专题先进有机功能材料团队
通讯作者Zhenggang Lan,Renqiang Yang and Xiaobo Wan
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, 189 Songling Rd, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Cai, Mian,Bao, Xichang,Liu, Yan Fang,et al. Unexpected Opposite Influences of Para vs Ortho Backbone Fluorination on the Photovoltaic Performance of a Wide-Bandgap Conjugated Polymer[J]. CHEMISTRY OF MATERIALS,2017,29(21):9162-9170.
APA Cai, Mian.,Bao, Xichang.,Liu, Yan Fang.,Li, Chenchen.,Wang, Xiao.,...&Zhenggang Lan,Renqiang Yang and Xiaobo Wan.(2017).Unexpected Opposite Influences of Para vs Ortho Backbone Fluorination on the Photovoltaic Performance of a Wide-Bandgap Conjugated Polymer.CHEMISTRY OF MATERIALS,29(21),9162-9170.
MLA Cai, Mian,et al."Unexpected Opposite Influences of Para vs Ortho Backbone Fluorination on the Photovoltaic Performance of a Wide-Bandgap Conjugated Polymer".CHEMISTRY OF MATERIALS 29.21(2017):9162-9170.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Unexpected opposite (568KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
2017-ortho and para (4832KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Cai, Mian]的文章
[Bao, Xichang]的文章
[Liu, Yan Fang]的文章
百度学术
百度学术中相似的文章
[Cai, Mian]的文章
[Bao, Xichang]的文章
[Liu, Yan Fang]的文章
必应学术
必应学术中相似的文章
[Cai, Mian]的文章
[Bao, Xichang]的文章
[Liu, Yan Fang]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Unexpected opposite influences of para vs ortho backbone fluorination on the photovoltaic performance of a wide-bandgap conjugated polymer.pdf
格式: Adobe PDF
此文件暂不支持浏览
文件名: 2017-ortho and para F influence on OPV-CM-Wan.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。