文献类型：期刊文献

英文题名：Study of water adsorption on graphene edges

作者：Jiang, Lijuan[1,2];Wang, Jinlong[1];Liu, Peng[2];Song, Wei[1];He, Bingling[1]

第一作者：蒋利娟;Jiang, Lijuan

通讯作者：Liu, P[1]

机构：[1]Xinxiang Univ, Dept Phys & Elect Engn, Xinxiang 453003, Peoples R China;[2]Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China

第一机构：新乡学院物理与电子工程学院

通讯机构：[1]corresponding author), Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China.

年份：2018

卷号：8

期号：20

起止页码：11216-11221

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20181304936738);Scopus(收录号：2-s2.0-85044244355);WOS:【SCI-EXPANDED(收录号:WOS:000429534200060)】；

基金：This work is financed by the NSFC (grant No. 51672152), the Innovation Talents Program of Science and Technology of Institution of Higher Education of Henan Province, China (Grant No. 14HASTIT044), and the Science and Technology Project of Henan Province, China(Ggrant No. 182102310884).

语种：英文

外文关键词：Adsorption - Work function

摘要：Water adsorption on graphene edges was studied by field emission (FE) experiments and first principles simulation. By analyzing the FE current change with temperature, it was concluded that the intrinsic FE of a graphene edge is consistent with Fowler-Nordheim (FN) theory. The noise of IV and non-linearity of FN curves at room-temperature can be interpreted by the adsorption effects. Water is speculated as the most responsible gas specie. We have calculated the work function of graphene by VASP. The results show that water adsorption will lower the work function of the graphene edge, while increasing the work function of the graphene surface.