| Enhancement of photodetector performance by tuning donoracceptor ratios in diketopyrrolopyrrole- and thiophene-based polymers | |
| Hu, Liuyong1,2; Han, Jinfeng1,2; Qiao, Wenqiang1; Wang, Zhi Yuan1,3 | |
| 刊名 | Polymer
 |
| 2016-09-02 | |
| 卷号 | 99页码:427-433 |
| 关键词 | Weak donor Strong acceptor Donor-acceptor ratio Polymer Photodetector Broad response High detectivity |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2016.07.049 |
| 通讯作者 | Qiao, wenqiang(wqqiao@ciac.ac.cn) ; Wang, zhi yuan(wayne_wang@carleton.ca) |
| 英文摘要 | In order to investigate the effect of the ratio of donor (d) and acceptor (a) in conjugated d-a polymers on the photovoltaic properties and photodetector performance, a series of polymers containing a weak electron donor of thiophene (t) and a strong electron acceptor of pyrrolo [3,4-c] pyrrole-1,4-dione (dpp) were designed and synthesized. five polymers p1-p5 were obtained with different d/a (t/dpp) ratios of 3.0:1, 2.7:1, 2.5:1, 2.3:1 and 2.0:1, respectively. with increase of the dpp content, the polymers exhibited a red shift in maximal absorption and a gradual decrease of the lumo energy level. at the d/a ratio of 2.7: 1 for p2, its film morphology was found to be ideal for the bulk-heterojunction photodetector and the device based on p2 exhibited the highest specific detectivity of over 10(12) jones in the spectral region of 330-920 nm under -0.1 v bias. these results manifest the feasibility of improving the photovoltaic property simply by tuning the d/a ratio in conjugated d-a polymers. (c) 2016 elsevier ltd. all rights reserved. |
| WOS关键词 | ORGANIC SOLAR-CELLS ; NEAR-INFRARED PHOTODETECTORS ; LOW-BANDGAP POLYMERS ; CONJUGATED POLYMERS ; HIGH-DETECTIVITY ; SIDE-CHAINS ; PHOTOVOLTAIC PERFORMANCE ; QUANTUM EFFICIENCY ; STRONG ACCEPTOR ; FIBRIL WIDTH |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000383885000047 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376165 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qiao, Wenqiang; Wang, Zhi Yuan |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Carleton Univ, Dept Chem, 1125 Colonel Dr, Ottawa, ON K1S 5B6, Canada |
| 推荐引用方式 GB/T 7714 | Hu, Liuyong,Han, Jinfeng,Qiao, Wenqiang,et al. Enhancement of photodetector performance by tuning donoracceptor ratios in diketopyrrolopyrrole- and thiophene-based polymers[J]. Polymer,2016,99:427-433. |
| APA | Hu, Liuyong,Han, Jinfeng,Qiao, Wenqiang,&Wang, Zhi Yuan.(2016).Enhancement of photodetector performance by tuning donoracceptor ratios in diketopyrrolopyrrole- and thiophene-based polymers.Polymer,99,427-433. |
| MLA | Hu, Liuyong,et al."Enhancement of photodetector performance by tuning donoracceptor ratios in diketopyrrolopyrrole- and thiophene-based polymers".Polymer 99(2016):427-433. |
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