文献类型：期刊文献

英文题名：The adsorption state and the evolution of field emission properties of graphene edges at different temperatures

作者：Jiang, Lijuan[1,2,3];Liu, Peng[2,3];Zhang, Lina[2,3];Liu, Changhong[2,3];Zhang, Liwei[1];Fan, Shoushan[2,3]

第一作者：蒋利娟;Jiang, Lijuan

通讯作者：Liu, P[1];Liu, P[2]

机构：[1]Xinxiang Univ, Dept Phys & Elect Engn, Xinxiang 453003, Peoples R China;[2]Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China;[3]Tsinghua Univ, 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, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China;[2]corresponding author), Tsinghua Univ, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China.

年份：2018

卷号：8

期号：56

起止页码：31830-31834

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20183905863188);Scopus(收录号：2-s2.0-85053714678);WOS:【SCI-EXPANDED(收录号:WOS:000448148500002)】；

基金：This work is financed by the National Key R&D Program of China (Grant No. 2018YFA0208401 and 2017YFA0205800), NSFC (Grant No. 51572146, 51727805, and 51672152), the Beijing Advanced Innovation Center for Future Chip (ICFC), the Innovation Talents Program of Science and Technology of Institution of Higher Education of Henan Province, China (Grant No. 14HASTIT044), the Science and Technology Project of Henan Province, China (Grant No. 182102310884), and the Ninth Group of Key Disciplines in Henan province, China (Grant No. 2018119).

语种：英文

外文关键词：Adsorption - Desorption - Field emission - Thermography (imaging)

摘要：We have studied the effects of adsorbates on the field emission (FE) properties of graphene edges at different temperatures using Joule heating. Using infrared imaging and spectral fitting, the temperature from room temperature to about 1000 K was measured accurately. It was found that adsorption induces the deviation of graphene edge field emission from the Fowler-Nordheim law and the noise of the field emission. The adsorbates are gradually desorbed with an increase in temperature, and are almost completely desorbed above about 500 K. The FE of graphene edges without adsorption is fairly consistent with the FN theory.