[1]王艳宾,王腾,罗钟琳,等.基于主链中含有呋喃基窄能带隙聚合物的设计与合成[J].常州大学学报(自然科学版),2016,(04):36-42.[doi:10.3969/j.issn.2095-0411.2016.04.007]
　WANG Yanbin,WANG Teng,LUO Zhonglin,et al.Molecular Design and Synthesis of Low-Bandgap Polymers Containing Furan in the Main Chain[J].Journal of Changzhou University(Natural Science Edition),2016,(04):36-42.[doi:10.3969/j.issn.2095-0411.2016.04.007]
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基于主链中含有呋喃基窄能带隙聚合物的设计与合成()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年04期
页码:
36-42
栏目:
材料科学与工程
出版日期:
2016-07-30

文章信息/Info

Title:
Molecular Design and Synthesis of Low-Bandgap Polymers Containing Furan in the Main Chain
作者:
王艳宾; 王腾; 罗钟琳; 王标兵
常州大学 材料科学与工程学院,江苏 常州 213164
Author(s):
WANG Yanbin;  WANG Teng;  LUO Zhonglin;  WANG Biaobing
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
关键词:
窄能带隙;  噻吩;  呋喃;  溶解性;  能级分布
Keywords:
low-bandgap;  thiophene;  furan;  solubility;  energy level
分类号:
O 633.4
DOI:
10.3969/j.issn.2095-0411.2016.04.007
文献标志码:
A
摘要:
为了提高窄能带隙聚合物的溶解性和优化窄能带隙聚合物的能级分布,分别以4,7-双(5’-溴-2’-噻吩)-2,1,3-苯并噻唑(DTBT)和4,7-双(5’-溴-2’-呋喃)-2,1,3-苯并噻唑(DFBT)为受体,采用给体-受体交替排列的策略,分别合成了2个窄能带隙共轭聚合物(PCDTBT, PCDFBT)。通过取代主链中的噻吩基团,基于呋喃的窄能带隙聚合物PCDFBT具有更好的溶解性和更低的最高未占轨道。而且,相比聚合物PCDTBT,呋喃取代的聚合物PCDFBT的最大吸收峰红移了20 nm,这表明聚合物PCDFBT具有更好的光学吸收能力。
Abstract:
To improve the solubility and optimize energy levels of low-bandgap polymers, two conjugated polymers based 4,7-bis(5’-bromo-2’-thiophene)-2,1,3-benzodiathiazole(DTBT)and 4,7-bis(5’-bromo-2’-furan)-2,1,3-benzodiathiazole(DFBT)as acceptor were prepared by donor-acceptor alternating strategy. Through replacing thiophene unit with furan unit in the polymer main chain, the polymer(PCDFBT)with furan unit in the backbone exhibited a deeper highest occupied molecular orbital(HOMO)energy levels compared with the polymer(PCDTBT)containing thiophene unit in the backbone. Furthermore, the maximum absorption peak of the furan substituent polymer PCDFBT was red shift 20 nm compared with PCDTBT, which indicated PCDFBT showed better exciton harvesting ability.

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备注/Memo

备注/Memo:
收稿日期:2016-01-14。基金项目:常州大学科技项目(ZMF15020116)。作者简介:王艳宾(1983—),男,河南漯河人,博士,讲师,主要从事有机光伏研究。文章编号:2095-0411(2016)04-0036-07
更新日期/Last Update: 2016-08-30