Bandgap engineered novel g-C_3N_4/G/h-BN heterostructure for electronic applications
Bandgap engineered novel g-C_3N_4/G/h-BN heterostructure for electronic applications作者机构:Department of Electronics & Communication Engineering Motilal Nehru National Institute of Technology Allahabad Department of Electrical & Electronics Engineering Loknayak Jai Prakash Institute of Technology Chhapra
出 版 物:《Journal of Semiconductors》 (半导体学报(英文版))
年 卷 期:2019年第40卷第3期
页 面:45-49页
核心收录:
学科分类:0808[工学-电气工程] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学]
主 题:bandgap graphene h-BN g-C3N4 binding energy DFT
摘 要:The effect of an external electric field on the bandgap is observed for two proposed heterostructures graphitic carbon nitride-graphene-hexagonal boron nitride(g-C_3N_4/G/h-BN) in hexagonal stack(AAA) and graphene-graphitic carbon nitridehexagonal boron nitride(G/g-C_3N_4/h-BN) in Bernal stack(ABA). Their inter-layer distance, binding energy and effective mass has also been calculated. The structure optimization has been done by density functional theory(DFT) with van der Waals corrections. The inter-layer distance, bandgap, binding energy and effective mass has been listed for these heterostructures and compared with that of bilayer graphene(BLG), graphene-hexagonal boron nitride(G/h-BN) hetero-bilayer, graphene-graphitic carbon nitride(G/g-C_3N_4) hetero-bilayer and graphitic carbon nitride-graphene-graphitic carbon nitride(g-C_3N_4/G/g-C_3N_4) heterostructure in Bernal and hexagonal stack. g-C_3N_4/G/h-BN is found to offer lower effective mass and larger bandgap opening among the considered heterostructures.