Control of Mesoscale Morphology and Photovoltaic Performance in Diketopyrrolopyrrole-Based Small Band Gap Terpolymers
文献类型：期刊论文
| 作者 | Ye, Long1,2,3; Jiao, Xuechen2,3; Zhang, Shaoqing1; Yao, Huifeng1; Qin, Yunpeng1; Ade, Harald2,3; Hou, Jianhui1 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2017-02-08 |
| 卷号 | 7期号:3 |
| 关键词 | Diketopyrrolopyrrole Domain Purity Domain Size Small Band Gap Terpolymers |
| 英文摘要 | Morphology control is one of the key strategies in optimizing the performance of organic photovoltaic materials, particularly for diketopyrrolopyrrole (DPP)-based donor polymers. The design of DPP-based polymers that provide high power conversion efficiency (PCE) presents a significant challenge that requires optimization of both energetics and morphology. Herein, a series of high performance, small band gap DPP-based terpolymers are designed via two-step side chain engineering, namely introducing alternating short and long alkyls for reducing the domain spacing and inserting alkylthio for modulating the energy levels. The new DPP-based terpolymers are compared to delineate how the side chain impacts the mesoscale morphology. By employing the alkylthio-substituted terpolymer PBDPP-TS, the new polymer solar cell (PSC) device realizes a good balance of a high V-oc of 0.77 V and a high J(sc) over 15 mA cm(-2), and thus realizes desirable PCE in excess of 8% and 9.5% in single junction and tandem PSC devices, respectively. The study indicates better control of domain purity will greatly improve performance of single junction DPP-based PSCs toward 10% efficiency. More significantly, the utility of this stepwise side chain engineering can be readily expanded to other classes of well-defined copolymers and triggers efficiency breakthroughs in novel terpolymers for photovoltaic and related electronic applications. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38107]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.North Carolina State Univ, Dept Phys & Organ, Raleigh, NC 27695 USA 3.North Carolina State Univ, Carbon Elect Lab ORaCEL, Raleigh, NC 27695 USA |
| 推荐引用方式 GB/T 7714 | Ye, Long,Jiao, Xuechen,Zhang, Shaoqing,et al. Control of Mesoscale Morphology and Photovoltaic Performance in Diketopyrrolopyrrole-Based Small Band Gap Terpolymers[J]. ADVANCED ENERGY MATERIALS,2017,7(3). |
| APA | Ye, Long.,Jiao, Xuechen.,Zhang, Shaoqing.,Yao, Huifeng.,Qin, Yunpeng.,...&Hou, Jianhui.(2017).Control of Mesoscale Morphology and Photovoltaic Performance in Diketopyrrolopyrrole-Based Small Band Gap Terpolymers.ADVANCED ENERGY MATERIALS,7(3). |
| MLA | Ye, Long,et al."Control of Mesoscale Morphology and Photovoltaic Performance in Diketopyrrolopyrrole-Based Small Band Gap Terpolymers".ADVANCED ENERGY MATERIALS 7.3(2017). |
入库方式： OAI收割
来源：化学研究所
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