期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41467-020-19605-z
关键词
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资金
- National Natural Science Foundation of China [22022103, 22071114, 21871146, 51722308]
- National Key Research and Development Program of China [2019YFA0210500]
- 1000-Talent Youth Program [020/BF180181]
- Natural Science Foundation of Tianjin [18JCYBJC20400]
- Fundamental Research Funds for the Central Universities
- Shenzhen Nobel Prize Scientists Laboratory Project [C17213101]
- Guangdong Innovative and Entrepreneurial Research Team Program [2016ZT06G587]
- Shenzhen Sci-Tech Fund [KYTDPT20181011104007]
- Nankai University
- National Research Foundation of Korea [2017H1A2A1046334] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In organic electronics, an aromatic fused ring is a basic unit that provides -electrons to construct semiconductors and governs the device performance. The main challenge in developing new pi -skeletons for tuning the material properties is the limitation of the available chemical approach. Herein, we successfully synthesize two pentacyclic siloxy-bridged pi -conjugated isomers to investigate the synergistic effects of Si and O atoms on the geometric and electronic influence of pi -units in organic electronics. Notably, the synthesis routes for both isomers possess several advantages over the previous approaches for delivering conventional aromatic fused-rings, such as environmentally benign tin-free synthesis and few synthetic steps. To explore their potential application as photovoltaic materials, two isomeric acceptor-donor-acceptor type acceptors based on these two isomers were developed, showing a decent device efficiency of 10%, which indicates the great potential of this SiO-bridged ladder-type unit for the development of new high-performance semiconductor materials.Developing a new pi -skeletal aromatic fused-ring for tuning material properties in organic electronics is still a challenge due to limited chemical approach. Here, the authors enrich the chemistry by synthesizing SiO-bridged ladder-type pi -skeletons with enhanced planarity and deeper energy levels than CO-bridged counterpart.
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