Design of asymmetric benzodithiophene based wide band-gap conjugated polymers toward efficient polymer solar cells promoted by a low boiling point additive
文献类型：期刊论文
| 作者 | Li, Yonghai1; Duan, Linrui1; Liu, Deyu1,2; Chen, Weichao1,3 ; Bao, Xichang1; Zhen, Hongyu4; Liu, Huizhou1; Yang, Renqiang1
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
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| 出版日期 | 2018-03-21 |
| 卷号 | 6期号:11页码:2806-2813 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c8tc00148k |
| 文献子类 | Article |
| 英文摘要 | In this work, we reported two wide band-gap donor-acceptor (D-A) photovoltaic materials based on asymmetric benzodithiophene units with a bare phenyl or alkoxyl chain modified phenyl group as one of the substitutions. The optical band-gaps of the two polymers are both identified above 1.80 eV. P2 (with a side chain in the phenyl group) reveals slightly red-shifted film absorption spectra compared to polymer P1 attached with the bare phenyl group, which is partly attributed to the better molecular conformations and intermolecular interactions. Polymer solar cells with different acceptor materials are fabricated to systematically evaluate the photovoltaic properties of the two polymers. The results show that P2 based fullerene and fullerene-free solar cells both show superior photovoltaic performance over the devices of P1, mainly attributed to the more favorable heterojunction morphologies and more balanced charge transport. P2 based PSCs with PC71BM as the acceptor demonstrate an enhanced efficiency (8.58%) compared to that of P1 (7.04%). Notably, low boiling point toluene was reported as an effective additive for the first time to optimize the photovoltaic performance of fullerene-free polymer solar cells. The best efficiency of the P2/ITIC based devices reached over 9%, with a V-OC of 0.90 V, J(SC) of 16.70 mA cm(-2), and FF of 0.603, suggesting the great potential of low boiling point solvents as the additive toward efficient fullerene-free polymer solar cells. |
| WOS关键词 | OPEN-CIRCUIT VOLTAGE ; PHOTOVOLTAIC POLYMERS ; CONVERSION EFFICIENCY ; ORGANIC PHOTOVOLTAICS ; MORPHOLOGY CONTROL ; SMALL-MOLECULE ; SIDE-CHAINS ; PERFORMANCE ; ACCEPTOR ; DONOR |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000428999300021 |
| 资助机构 | National Natural Science Foundation of China(21502205 ; Taishan Scholars Climbing Program of Shandong(tspd20150210) ; 51573205 ; 51773220) |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/10737]  |
| 专题 | 中国科学院青岛生物能源与过程研究所 |
| 通讯作者 | Chen, Weichao; Liu, Huizhou; Yang, Renqiang |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Univ, Coll Text & Clothing, Qingdao 266071, Peoples R China 4.Fujian Normal Univ, Fujian Key Lab Polymer Mat, Coll Chem & Mat Sci & Engn, Fuzhou 350007, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yonghai,Duan, Linrui,Liu, Deyu,et al. Design of asymmetric benzodithiophene based wide band-gap conjugated polymers toward efficient polymer solar cells promoted by a low boiling point additive[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(11):2806-2813. |
| APA | Li, Yonghai.,Duan, Linrui.,Liu, Deyu.,Chen, Weichao.,Bao, Xichang.,...&Yang, Renqiang.(2018).Design of asymmetric benzodithiophene based wide band-gap conjugated polymers toward efficient polymer solar cells promoted by a low boiling point additive.JOURNAL OF MATERIALS CHEMISTRY C,6(11),2806-2813. |
| MLA | Li, Yonghai,et al."Design of asymmetric benzodithiophene based wide band-gap conjugated polymers toward efficient polymer solar cells promoted by a low boiling point additive".JOURNAL OF MATERIALS CHEMISTRY C 6.11(2018):2806-2813. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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