期刊
NATURE ENERGY
卷 6, 期 11, 页码 1045-1053出版社
NATURE PORTFOLIO
DOI: 10.1038/s41560-021-00923-5
关键词
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资金
- National Natural Science Foundation of China [51922074, 22075194, 51673138, 51820105003]
- National Key Research and Development Program of China [2020YFB1506400]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [20KJA430010]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- Postgraduate Research and Practice Innovation Program of Jiangsu Province [KYCX21_2939]
- Czech Science Foundation [GA18-12925S]
- Swedish Energy Agency Energimyndigheten [48382-1, 52474-1]
- Swedish Research Council VR [2016-06146, 2018-05484, 2018-06048]
- Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]
- Swedish Research Council FORMAS [2019-01071]
- Aforsk and Olle Engkvists Stiftelse [196-0134]
- Stiftelsen for Strategisk Forskning through a Future Research Leader programme [FFL18-0322]
- Tang Scholar
- Swedish Foundation for Strategic Research (SSF) [FFL18-0322] Funding Source: Swedish Foundation for Strategic Research (SSF)
- Forte [2019-01071] Funding Source: Forte
- Formas [2019-01071] Funding Source: Formas
- Swedish Research Council [2016-06146, 2018-05484] Funding Source: Swedish Research Council
The research team successfully achieved power conversion efficiencies of over 17% in organic solar cells processed from green solvent paraxylene (PX) using a guest-assisted assembly strategy. This approach improved device operational stability and enabled uniform deposition on large-area modules with high efficiency, paving the way for industrial development of organic solar cells.
The power conversion efficiencies (PCEs) of laboratory-sized organic solar cells (OSCs), usually processed from low-boiling-point and toxic solvents, have reached high values of over 18%. However, there is usually a notable drop of the PCEs when green solvents are used, limiting practical development of OSCs. Herein, we obtain certificated PCEs over 17% in OSCs processed from a green solvent paraxylene (PX) by a guest-assisted assembly strategy, where a third component (guest) is employed to manipulate the molecular interaction of the binary blend. In addition, the high-boiling-point green solvent PX also enables us to deposit a uniform large-area module (36 cm(2)) with a high efficiency of over 14%. The strong molecular interaction between the host and guest molecules also enhances the operational stability of the devices. Our guest-assisted assembly strategy provides a unique approach to develop large-area and high-efficiency OSCs processed from green solvents, paving the way for industrial development of OSCs. Organic solar cells processed from green solvents are easier to implement in manufacturing yet their efficiency is low. Chen et al. devise a guest molecule to improve the molecular packing, enabling devices with over 17% efficiency.
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