期刊
SCIENCE CHINA-CHEMISTRY
卷 64, 期 6, 页码 1057-1062出版社
SCIENCE PRESS
DOI: 10.1007/s11426-021-9974-5
关键词
two-dimensional crystals; organic semiconductors; organic field-effect transistors
资金
- Ministry of Science and Technology of China [2016YFB0401100, 2017YFA0204503, 2018YFA0703200]
- National Natural Science Foundation of China [91833306, 51633006, 51703159, 51733004, 51725304, 52003189, 21875158]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030300]
- China Postdoctoral Science Foundation [2020M680875]
A dual-function surfactant strategy was used to control the growth of large-area 2D organic semiconductor crystals, resulting in high-quality crystals and improved OFET mobility. This method opens up new possibilities for achieving high-performance OFETs with various high-quality 2D organic semiconductor crystals.
Two-dimensional (2D) organic semiconductor crystals (OSCs) are ideal platforms for investigating fundament materials as well as achieving high-performance organic field-effect transistors (OFETs). The surfactants played an important role in the 2DOSCs growth in previous studies. However, residual surfactants may cause performance degradation of devices. Herein, a simple and effective dual-function surfactant strategy is used to control the growth of large-area few-molecular-layer 2DOSCs The introduction of phosphatidylcholine decreases the interfacial tension and improves the crystal growth dynamics, resulting in high-quality and large-area few-molecular-layer 2,6-bis(4-hexylphenyl)anthracene (C-6-DPA) 2DOSC. The additive also passivates charge traps, boosting the mobility of 2DOSC-based OFETs by almost threefold. This method is also suitable for the growth of various high-quality 2DOSCs, opening up a new avenue for high-quality 2DOSCs towards high-performance OFETs.
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