Secondary electron emission characteristics of graphene films with copper substrate
Secondary electron emission characteristics of graphene films with copper substrate
复制标题
铜基石墨烯薄膜的二次电子发射特性
DOI：
10.1088/1674-1137/40/11/117003
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发表时间：
2016-09
影响因子：
3.6
通讯作者：
尉伟
中科院分区：
文献类型：
--
作者：
王洁;王勇;徐延辉;张宇心;张波;尉伟
对于现代及未来的环形加速器，尤其是高强度质子同步加速器或对撞机，电子云效应是一个关键问题。因此，为了减少电子云效应，探索极低二次电子产额（SEY）的材料
For modern and future circular accelerators, especially high-intensity proton synchrotrons or colliders, the electron cloud effect is a key issue. So, in order to reduce the electron cloud effect, exploring very low secondary electron yield (SEY) material or coating used in vacuum tubes becomes necessary. In this article, we studied the SEY characteristics of graphene films with different thicknesses which were deposited on copper substrates using chemical vapor deposition. The SEY tests were done at temperatures of 25 °C and vacuum pressure of (2 − 6) × 10−9 torr. The properties of the deposited graphene films were investigated by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The SEY curves show that the number of graphene layers has a great effect on the SEY of graphene films. The maximum SEY of graphene films decreases with the increase of the number of layers. The maximum SEY of 6–8 layers of graphene film is 1.25. These results have a great significance for next-generation particle accelerators.
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影响因子：
56.9
作者：
Nair, R. R.;Blake, P.;Geim, A. K.
通讯作者：
Geim, A. K.
DOI：
10.1016/s0168-9002(01)00704-5
发表时间：
2001-08
影响因子：
1.4
作者：
R. Kirby;F. King
通讯作者：
R. Kirby;F. King
影响因子：
41.2
作者：
Geim, A. K.;Novoselov, K. S.
通讯作者：
Novoselov, K. S.
影响因子：
6.7
作者：
C. Scheuerlein;M. Taborelli;N. Hilleret;A. M. Brown;M. Baker
通讯作者：
C. Scheuerlein;M. Taborelli;N. Hilleret;A. M. Brown;M. Baker
影响因子：
8.6
作者：
Cimino, R;Collins, IR;Zimmermann, F
通讯作者：
Zimmermann, F