期刊
NATURE CHEMISTRY
卷 12, 期 11, 页码 1035-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41557-020-0540-2
关键词
-
资金
- National Natural Science Foundation of China [21473045, 51772066, 21603086, U1930402]
- Engineering and Physical Sciences Research Council [EP/L000202, EP/P020194]
- State Key Laboratory of Urban Water Resource and Environment [2018DX04]
Chemical reactions that convertsp(2)tosp(3)hybridization have been demonstrated to be a fascinating yet challenging route to functionalize graphene. So far it has not been possible to precisely control the reaction sites nor their lateral order at the atomic/molecular scale. The application prospects have been limited for reactions that require long soaking, heating, electric pulses or probe-tip press. Here we demonstrate a spatially selective photocycloaddition reaction of a two-dimensional molecular network with defect-free basal plane of single-layer graphene. Directly visualized at the submolecular level, the cycloaddition is triggered by ultraviolet irradiation in ultrahigh vacuum, requiring no aid of the graphene Moire pattern. The reaction involves both [2+2] and [2+4] cycloadditions, with the reaction sites aligned into a two-dimensional extended and well-ordered array, inducing a bandgap for the reacted graphene layer. This work provides a solid base for designing and engineering graphene-based optoelectronic and microelectronic devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据