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何成

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所在单位:材料科学与工程学院

学历:硕博连读

性别:男

学位:博士

职称:教授

学科: 材料科学与工程

招生学科 材料科学与工程

论文成果

Electronic properties of blue phosphorene/transition metal dichalcogenides van der Waals heterostructures under in-plane biaxial strains

发布时间:2025-04-30

论文名称:
Electronic properties of blue phosphorene/transition metal dichalcogenides van der Waals heterostructures under in-plane biaxial strains
发表刊物:
J Solid State Chem.
摘要:
Using first-principles density functional theory, we have investigated the atomic structural and electronic properties of blue phosphorene/transition metal dichalcogenides BP/XT2 (X = Mo, W; T = S, Se) van der Waals (vdW) heterostructures under in-plane biaxial strains. Our results demonstrate that the strain can effectively tune the band gap of BP/XT2 heterostructures and maintain their high carrier mobility. In addition, BP/MoSe2, BP/WS2 and BP/WSe2 vdW heterostructures exhibit indirect-to-direct band gap transitions when the compressive strains reach to the critical values. Moreover, the BP/WT2 (T = S, Se) heterostructures are type-II vdW heterostructures and could be technologically applied as photocatalytic materials. And BP/MoS2 heterostructure undergoes a semiconduction type transition (type-I to type-II) under the external epsilon, which has potential application as an on-off switch in the photocatalytic material. These results show rich behavior of the strain-based in blue phosphorene/transition metal dichalcogenides vdW heterostructures.
合写作者:
W.X. Zhang , W.H. He, J.W. Zhao, C. He*
卷号:
(2018) 265, 257-265
页面范围:
(2018) 265, 257-265
是否译文:
发表时间:
2018-09-01