期刊
CCS CHEMISTRY
卷 1, 期 2, 页码 181-196出版社
CHINESE CHEMICAL SOC
DOI: 10.31635/ccschem.019.20180020
关键词
aggregation-induced emission; energy and charge transfer; single-molecule wires; thermally activated delayed fluorescence; through-space conjugation
资金
- National Natural Science Foundation of China [21788102, 21673082]
- National Basic Research Program of China (973 Program) [2015CB655004]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2014A030306035]
- Natural Science Foundation of Guangdong Province [2016A030312002]
- Innovation and Technology Commission of Hong Kong [ITC-CNERC14SC01]
Efficient electronic coupling is the key to constructing optoelectronic functional pi systems. Generally, the delocalization of pi electrons must comply with the framework constructed by covalent bonds (typically sigma bonds), representing classic through-bond conjugation. However, through-space conjugation offers an alternative that achieves spatial electron communication with closely stacked pi systems instead of covalent bonds thus enabling multidimensional energy and charge transport. Because of the ever-accelerating advances of through-space conjugation studies, researchers are inspired greatly by the beauty of through-space conjugated systems and their potential in high-tech applications. In this mini review, we introduce some representative and newly developed pi systems having the through-space conjugation feature. In addition to discussing the profound impacts of through-space conjugation on the luminescence properties and charge transport, we will review some impressive findings of distinctive molecules with attractive characteristics, such as aggregation-induced emission, thermally activated delayed fluorescence, bipolar charge transport, and multichannel. These achievements may bring about new breakthroughs of theory, materials, and devices in the fields of organic electronics and molecular electronics. [GRAPHICS] .
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