Effects of X-ray irradiation on the structure and field electron emission properties of vertically aligned few-layer graphene
Wu, JQ; Zhang, Y; Wang, 王波;伊福廷; B; Yi, FT; Deng, SZ; Xu, NS; Chen, J
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
2013
卷号304期号:1页码:49-56
关键词Few-layer graphene X-ray irradiation Field emission
学科分类Instruments & Instrumentation; Nuclear Science & Technology; Physics
DOI10.1016/j.nimb.2013.04.041
英文摘要Vertically aligned few-layer graphene is prepared using microwave plasma enhanced chemical vapor deposition. The vertically aligned few-layer graphene is irradiated by X-ray of different doses from synchrotron radiation. The main structure of vertically aligned few-layer graphene is found to remain unchanged after X-ray irradiation both in high and low vacuum. X-ray photoelectron spectroscopy results reveal that the oxygen content in pristine and irradiated few-layer graphene remain unchanged after X-ray irradiation in high vacuum. When irradiated in low vacuum, the oxygen content in few-layer graphene increases with X-ray dose. For the vertically aligned few-layer graphene irradiated in low vacuum, the work function first increases and then slightly decreases with further increase irradiation dose from 9.0 x 10(14) to 3.6 x 10(15) phs/cm(2). The field electron emission turn-on field is observed to increase from 4.0 to 9.1 MV/m after X-ray irradiation with the dose of 3.6 x 10(15) phs/cm(2). The mechanism of the changes in work function and field emission performance of vertically aligned few-layer graphene after X-ray irradiation in low vacuum are discussed. (C) 2013 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000320217200009
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223795
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Wu, JQ,Zhang, Y,Wang, 王波;伊福廷,et al. Effects of X-ray irradiation on the structure and field electron emission properties of vertically aligned few-layer graphene[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2013,304(1):49-56.
APA Wu, JQ.,Zhang, Y.,Wang, 王波;伊福廷.,B.,Yi, FT.,...&Chen, J.(2013).Effects of X-ray irradiation on the structure and field electron emission properties of vertically aligned few-layer graphene.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,304(1),49-56.
MLA Wu, JQ,et al."Effects of X-ray irradiation on the structure and field electron emission properties of vertically aligned few-layer graphene".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 304.1(2013):49-56.
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