电子元件与材料2017，Vol.36Issue(6)：25-30,6.DOI:10.14106/j.cnki.1001-2028.2017.06.005
碱金属基底和吸附强弱对石墨烯态密度的影响
Influences of alkali metal substrate and adsorption strength on graphene density of states
摘要
Abstract
The alkali metal(Li,Na,K,Rb,Cs),graphene and alkali metal base epitaxial graphene density of states were discussed by using the theory and method of solid state physics.In addition,the influence of alkali metal substrate materials and adsorption strength on the epitaxial graphene density of states was evaluated.The results indicate that the alkali metal substrate,single-layer graphene and all kinds of alkali metal base epitaxial graphene density of states curves are symmetrical about energy x=0,but the change is different.Furthermore,the maximum value of alkali metal substrate and alkali metal base epitaxial graphene density of states are increased with increasing atomic number.The stronger the alkali metal substrate adsorbed graphene,the smaller the possibility of large energy electrons appears in graphene and the most probable energy (except for Cs).关键词
外延石墨烯/态密度/碱金属基底/吸附/最可几能量/相互作用能Key words
epitaxial graphene/density of states/alkali metal substrate/adsorption/the most probable energy/interaction energy分类
通用工业技术引用本文复制引用
李杰,杨文耀,唐可,高君华,申凤娟..碱金属基底和吸附强弱对石墨烯态密度的影响[J].电子元件与材料,2017,36(6):25-30,6.基金项目
重庆市教委科学技术研究项目资助(No.KJ1601111) （No.KJ1601111）
重庆市基础与前沿研究项目资助(No.cstc2015jcyjA40054) （No.cstc2015jcyjA40054）
重庆文理学院校级科研项目资助(No.Z2015DQ12) （No.Z2015DQ12）
