Ultra-strong Stability of Double-sided Fluorinated Monolayer Graphene and Its Electrical Property Characterization

Overview

Journal Sci Rep

Specialty Science

Date 2020 Oct 17

PMID 33067499

Citations 3

Authors

Haidong Wang

Masahiro Narasaki

Zhongwei Zhang

Koji Takahashi

Jie Chen

Xing Zhang

Affiliations

Soon will be listed here.

Abstract

Fluorinated graphene has a tunable band gap that is useful in making flexible graphene electronics. But the carbon-fluorine (C-F) bonds in fluorinated graphene can be easily broken by increased temperature or electron beam irradiation. Here, we demonstrate that the stability of fluorinated graphene is mainly determined by its C-F configuration. The double-sided fluorinated graphene has a much stronger stability than the single-sided fluorinated graphene under the same irradiation dose. Density functional theory calculations show that the configuration of double-sided fluorinated graphene has a negative and low formation energy, indicating to be an energetically stable structure. On the contrary, the formation energy of single-sided fluorinated graphene is positive, leading to an unstable C-F bonding that is easily broken by the irradiation. Our findings make a new step towards a more stable and efficient design of graphene electronic devices.

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