The Impact of Device Polarity on the Performance of Polymer-Fullerene Solar Cells
文献类型：期刊论文
| 作者 | Li, Mengmeng1; Li, Junyu2; Rasi, Dario Di Carlo1; Colberts, Fallon J. M.1; Wang, Junke1; Heintges, Gael H. L.1; Lin, Baojun3; Li, Weiwei4; Ma, Wei3; Wienk, Martijn M.1,5 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2018-08-06 |
| 卷号 | 8期号:22 |
| ISSN号 | 1614-6832 |
| 关键词 | Device Polarity Light Absorption Morphology Control Polymer Solar Cells |
| DOI | 10.1002/aenm.201800550 |
| 英文摘要 | Diketopyrrolopyrrole (DPP)-conjugated polymers are a versatile class of semiconductors for application in organic solar cells because of their tunable optoelectronic properties. A record power conversion efficiency (PCE) of 9.4% was recently achieved for DPP polymers, but further improvements are required to reach true efficiency limits. Using five DPP polymers with different chemical structures and molecular weights, the device performance of polymer:fullerene solar cells is systematically optimized by considering device polarity, morphology, and light absorption. The polymer solubility is found to have a significant effect on the optimal device polarity. Soluble polymers show a 10-25% increase in PCE in inverted device configurations, while the device performance is independent of device polarity for less soluble DPP derivatives. The difference seems related to the polymer to fullerene weight ratio at the ZnO interface in inverted devices, which is higher for more soluble DPP polymers. Optimization of the nature of the cosolvent to narrow the fibril width of polymers in the blends toward the exciton diffusion length enhances charge generation. Additionally, the use of a retroreflective foil increases absorption of light. Combined, the effects afford a PCE of 9.6%, among the highest for DPP-based polymer solar cells. |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000440805400014 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41941]  |
| 专题 | 化学研究所_有机固体实验室 |
| 通讯作者 | Janssen, Rene A. J. |
| 作者单位 | 1.Eindhoven Univ Technol, Inst Complex Mol Syst, Mol Mat & Nanosyst, POB 513, NL-5600 MB Eindhoven, Netherlands 2.DSM DMSC R&D Solut, NL-6160 MD Geleen, Netherlands 3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 5.Dutch Inst Fundamental Energy Res, De Zaale 20, NL-5612 AJ Eindhoven, Netherlands |
| 推荐引用方式 GB/T 7714 | Li, Mengmeng,Li, Junyu,Rasi, Dario Di Carlo,et al. The Impact of Device Polarity on the Performance of Polymer-Fullerene Solar Cells[J]. ADVANCED ENERGY MATERIALS,2018,8(22). |
| APA | Li, Mengmeng.,Li, Junyu.,Rasi, Dario Di Carlo.,Colberts, Fallon J. M..,Wang, Junke.,...&Janssen, Rene A. J..(2018).The Impact of Device Polarity on the Performance of Polymer-Fullerene Solar Cells.ADVANCED ENERGY MATERIALS,8(22). |
| MLA | Li, Mengmeng,et al."The Impact of Device Polarity on the Performance of Polymer-Fullerene Solar Cells".ADVANCED ENERGY MATERIALS 8.22(2018). |
入库方式： OAI收割
来源：化学研究所
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