Simultaneous enhancement of performance and insensitivity to active layer thickness for opvs by functionalizing pi-spacer's side chain
文献类型：期刊论文
| 作者 | Yang, Dalei1,2,3; Zhang, Tong1,2,3; Zhao, Xiaoli1,2; Zeng, Guang1,2,3; Li, Zidong1,2,3; Tian, Yumeng1,2; He, Fagui3; Zhang, Jidong1; Yang, Xiaoniu1,2 |
| 刊名 | Polymer chemistry
 |
| 出版日期 | 2016 |
| 卷号 | 7期号:34页码:5366-5374 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c6py00920d |
| 通讯作者 | Zhao, xiaoli(zhaoxiaoli@ciac.ac.cn) ; Yang, xiaoniu(xnyang@ciac.ac.cn) |
| 英文摘要 | In the design of high performance conjugated copolymers, pi-spacer plays one of the most important roles in finely manipulating photovoltaic properties of the polymers. however, up to now, little attention has been paid to functionalize the pi-spacer. in this work, a novel d-a conjugated copolymer pbti3t-s, with 3-(decylthio) thiophene as the pi-spacer, is designed and synthesized. the introduction of a modified pi-spacer has little influence on the absorption spectrum and band gap of the polymer. however, it is found that the modified pi-spacer could create a noncovalent attractive interaction between neighboring moieties, resulting in good planarity and decreased pi-pi stacking distance in comparison to its analogue pbti3t with decyl substitution on the pi-spacers. more interestingly, the face-on population of crystallite orientation is significantly enhanced. thus, the hole mobility of the pbti3t-s/pc71bm blend is 1.29 x 10(-2) cm(2) v-1 s(-1), which is one order of magnitude higher than that of the pbti3t/pc71bm blend (1.15 x 10(-3) cm(2) v-1 s(-1)). the pbti3t-s device provides a higher pce of 7.14%, while the optimized pbti3t device provides 6.51%. impressively, the pces of the pbti3t-s device can remain above 7% without substantial loss as the active layer thickness increases up to similar to 270 nm, while the pce reduces to 5.70% for the pbti3t. these results demonstrate that the introduction of an alkylthio chain modified pi-spacer would be an effective way to further improve the device performance and provide a guideline for molecular engineering towards the application of the roll to roll printing technique. |
| WOS关键词 | POLYMER SOLAR-CELLS ; OPEN-CIRCUIT VOLTAGE ; LOW-BANDGAP POLYMER ; CONJUGATED POLYMER ; BUILDING-BLOCK ; FILL FACTORS ; EFFICIENCY ; COPOLYMERS ; DESIGN ; SEMICONDUCTORS |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000382143700005 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376330 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, Xiaoli; Yang, Xiaoniu |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Renmin Str 5625, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Polymer Composites Engn Lab, Renmin Str 5625, Changchun 130022, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Dalei,Zhang, Tong,Zhao, Xiaoli,et al. Simultaneous enhancement of performance and insensitivity to active layer thickness for opvs by functionalizing pi-spacer's side chain[J]. Polymer chemistry,2016,7(34):5366-5374. |
| APA | Yang, Dalei.,Zhang, Tong.,Zhao, Xiaoli.,Zeng, Guang.,Li, Zidong.,...&Yang, Xiaoniu.(2016).Simultaneous enhancement of performance and insensitivity to active layer thickness for opvs by functionalizing pi-spacer's side chain.Polymer chemistry,7(34),5366-5374. |
| MLA | Yang, Dalei,et al."Simultaneous enhancement of performance and insensitivity to active layer thickness for opvs by functionalizing pi-spacer's side chain".Polymer chemistry 7.34(2016):5366-5374. |
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来源：中国科学院大学
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