New alkylthienyl substituted benzo[1,2-b:4,5-b '] dithiophene-based polymers for high performance solar cells
文献类型：期刊论文
| 作者 | Liu, Bo1,2; Chen, Xuewen1; He, Yuehui2; Li, Yongfang3; Xu, Xinjun4; Xiao, Lu1; Li, Lidong4; Zou, Yingping1,5 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:3页码:570-577 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c2ta00474g |
| 英文摘要 | Three new alkylthienyl substituted benzodithiophene (BDT)-based polymers, poly{4,8-bis(2'-ethylhexylthiophene)benzo[1,2-b;3,4-b']dithiophene-alt-5,5-(4',7'-di-2-thienyl-5',6'-dioctyloxy-benzo[c] [1,2,5]oxadiazole)}(PBDTTDTBO), poly{4,8-bis(2'-ethylhexylthiophene)benzo[1,2-b;3,4-b']dithiophene-alt-5,5-(4',7'-di-2-thienyl-5',6'-dioctyloxy-2',1',3'-benzothiadiazole)}(PBDTTDTBT) and poly{4,8-bis(2'-ethyl hexylthiophene)benzo[1,2-b;3,4-b'] dithiophene-alt-5,5-(4',7'-di-2-thienyl-2-octyl-2',1',3'-benzotriazole)} (PBDTTDTBTz), were synthesized by Stille coupling polymerization reactions. All of the polymers were found to be soluble in common organic solvents such as chloroform, tetrahydrofuran and chlorobenzene with excellent film forming properties. Their structures were verified by elemental analysis and NMR spectroscopy, the molecular weights were determined by gel permeation chromatography (GPC) and the thermal properties were investigated by thermogravimetric analysis (TGA). The polymers exhibited tunable absorptions and energy levels on incorporation of different electron accepting units. All the copolymers showed high field hole mobility up to 10(-2) order, and their blends with PCBM exhibited mobility as high as 10(-1) order by the space-charge-limited current (SCLC) method. Preliminary photovoltaic cells based on the device structure of ITO/PEDOT:PSS/PBDTTDTBO:PC71BM (1 : 1.5, w/w)/Ca/Al showed a power conversion efficiency of 5.9% with a high open-circuit voltage (V-oc) of 0.84 V and a short circuit current density (J(sc)) of 11.45 mA cm(-2). To the best of our knowledge, this is the highest efficiency for dithienyl benzooxadiazole (DTBO)-based polymer solar cells. |
| 语种 | 英语 |
| WOS记录号 | WOS:000314632100019 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42001]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zou, Yingping |
| 作者单位 | 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China 2.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 4.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 5.Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Bo,Chen, Xuewen,He, Yuehui,et al. New alkylthienyl substituted benzo[1,2-b:4,5-b '] dithiophene-based polymers for high performance solar cells[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(3):570-577. |
| APA | Liu, Bo.,Chen, Xuewen.,He, Yuehui.,Li, Yongfang.,Xu, Xinjun.,...&Zou, Yingping.(2013).New alkylthienyl substituted benzo[1,2-b:4,5-b '] dithiophene-based polymers for high performance solar cells.JOURNAL OF MATERIALS CHEMISTRY A,1(3),570-577. |
| MLA | Liu, Bo,et al."New alkylthienyl substituted benzo[1,2-b:4,5-b '] dithiophene-based polymers for high performance solar cells".JOURNAL OF MATERIALS CHEMISTRY A 1.3(2013):570-577. |
入库方式： OAI收割
来源：化学研究所
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