A General Method for Growing Two-Dimensional Crystals of Organic Semiconductors by "Solution Epitaxy"

被引:172
作者
Xu, Chunhui [1 ]
He, Ping [1 ]
Liu, Jie [2 ,3 ]
Cui, Ajuan [1 ]
Dong, Huanli [1 ]
Zhen, Yonggang [1 ]
Chen, Wei [4 ,5 ]
Hu, Wenping [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci ICCAS, Inst Chem, Lab Organ Solids, Beijing 100190, Peoples R China
[2] Tianjin Univ, Sch Sci, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China
[3] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
[4] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore
[5] Natl Univ Singapore, Dept Phys, 3 Sci Dr 3, Singapore 117543, Singapore
基金
中国国家自然科学基金;
关键词
2D materials; organic crystals; organic electronics; organic field-effect transistors; self-assembly; FIELD-EFFECT TRANSISTORS; THIN-FILM TRANSISTORS; GRAPHENE; MOBILITY; NANOSTRUCTURES; NANOMATERIALS; NANOCRYSTALS; NANOSHEETS; TRANSPORT; MOS2;
D O I
10.1002/anie.201602781
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two-dimensional (2D) crystals of organic semiconductors (2DCOS) have attracted attention for large-area and low-cost flexible optoelectronics. However, growing large 2DCOS in controllable ways and transferring them onto technologically important substrates, remain key challenges. Herein we report a facile, general, and effective method to grow 2DCOS up to centimeter size which can be transferred to any substrate efficiently. The method named "solution epitaxy" involves two steps. The first is to self-assemble micrometersized 2DCOS on water surface. The second is epitaxial growth of them into millimeter or centimeter sized 2DCOS with thickness of several molecular layers. The general applicability of this method for the growth of 2DCOS is demonstrated by nine organic semiconductors with different molecular structures. Organic field-effect transistors (OFETs) based on the 2DCOS demonstrated high performance, confirming the high quality of the 2DCOS.
引用
收藏
页码:9519 / 9523
页数:5
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