Modification on single-layer graphene induced by low-energy electron-beam irradiation

Li Tao; Caiyu Qiu; Fang Yu; Huaichao Yang; Minjiang Chen; Gang Wang; Lianfeng Sun

doi:10.1021/jp312075v

Modification on single-layer graphene induced by low-energy electron-beam irradiation

Li Tao, Caiyu Qiu, Fang Yu, Huaichao Yang, Minjiang Chen, Gang Wang, Lianfeng Sun^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

In this work, we present studies of the effects of electron-beam irradiation on the modification of single-layer graphene. Micro-Raman spectra show that the D, D′, and D + G Raman bands, which are invisible for pristine graphene, appear after the graphenes are irradiated by low-energy electron-beam irradiation (10 keV), and the intensities of these peaks increase with increasing irradiation time, indicating disorder in graphene. The characteristics of G and 2D bands of graphene are also studied before and after irradiation. In the meantime, the height of graphene is studied by atomic force microscopy and found to increase for increasing irradiation time due to the contaminant deposition on graphene. The effects introduced by irradiation can be recovered partly by vacuum annealing. These results provide important information about the modification of graphene under electron-beam irradiation.

Original language	English
Pages (from-to)	10079-10085
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	117
Issue number	19
DOIs	https://doi.org/10.1021/jp312075v
Publication status	Published - 16 May 2013
Externally published	Yes

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title = "Modification on single-layer graphene induced by low-energy electron-beam irradiation",

abstract = "In this work, we present studies of the effects of electron-beam irradiation on the modification of single-layer graphene. Micro-Raman spectra show that the D, D′, and D + G Raman bands, which are invisible for pristine graphene, appear after the graphenes are irradiated by low-energy electron-beam irradiation (10 keV), and the intensities of these peaks increase with increasing irradiation time, indicating disorder in graphene. The characteristics of G and 2D bands of graphene are also studied before and after irradiation. In the meantime, the height of graphene is studied by atomic force microscopy and found to increase for increasing irradiation time due to the contaminant deposition on graphene. The effects introduced by irradiation can be recovered partly by vacuum annealing. These results provide important information about the modification of graphene under electron-beam irradiation.",

author = "Li Tao and Caiyu Qiu and Fang Yu and Huaichao Yang and Minjiang Chen and Gang Wang and Lianfeng Sun",

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T1 - Modification on single-layer graphene induced by low-energy electron-beam irradiation

AU - Tao, Li

AU - Qiu, Caiyu

AU - Yu, Fang

AU - Yang, Huaichao

AU - Chen, Minjiang

AU - Wang, Gang

AU - Sun, Lianfeng

PY - 2013/5/16

Y1 - 2013/5/16

N2 - In this work, we present studies of the effects of electron-beam irradiation on the modification of single-layer graphene. Micro-Raman spectra show that the D, D′, and D + G Raman bands, which are invisible for pristine graphene, appear after the graphenes are irradiated by low-energy electron-beam irradiation (10 keV), and the intensities of these peaks increase with increasing irradiation time, indicating disorder in graphene. The characteristics of G and 2D bands of graphene are also studied before and after irradiation. In the meantime, the height of graphene is studied by atomic force microscopy and found to increase for increasing irradiation time due to the contaminant deposition on graphene. The effects introduced by irradiation can be recovered partly by vacuum annealing. These results provide important information about the modification of graphene under electron-beam irradiation.

AB - In this work, we present studies of the effects of electron-beam irradiation on the modification of single-layer graphene. Micro-Raman spectra show that the D, D′, and D + G Raman bands, which are invisible for pristine graphene, appear after the graphenes are irradiated by low-energy electron-beam irradiation (10 keV), and the intensities of these peaks increase with increasing irradiation time, indicating disorder in graphene. The characteristics of G and 2D bands of graphene are also studied before and after irradiation. In the meantime, the height of graphene is studied by atomic force microscopy and found to increase for increasing irradiation time due to the contaminant deposition on graphene. The effects introduced by irradiation can be recovered partly by vacuum annealing. These results provide important information about the modification of graphene under electron-beam irradiation.

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M3 - Article

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SP - 10079

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

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ER -

Modification on single-layer graphene induced by low-energy electron-beam irradiation

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