Electrically-tuned transition of band alignment in arsenene/MoTe2 van der Waals heterostructures
Electrically-tuned transition of band alignment in arsenene/MoTe2 van der Waals heterostructures
复制标题
砷烯/MoTe2范德华异质结构中能带排列的电调谐转变
DOI:
10.1016/j.vacuum.2021.110612
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发表时间:
2021-09
期刊:
影响因子:
4
通讯作者:
F. Huang
中科院分区:
文献类型:
--
作者:
L.S. Huang;H.P. Liang;H.M. Dong;Yifeng Duan;F. Huang
Based on the first principles calculations, the electronic properties of single layer arsenene (As), MoTe2 and their van der Waals (vdW) heterostructures are studied. It shows that the electronic properties, especially the bandgaps of As/MoTe2 vdW heterostructures are effectively tuned by applied external fields due to the strong in-build electric field and the inter-layer electron transferring. The absorptions of H/O atom on the heterostructures are clearly tuned by the external electric fields. The transition from type I to type II band alignment in such heterostructures are realized by varying the applied electric field owing to the spatial inversion symmetry breaking. Our study provides the possibility for the applications of novel vdW heterostructures based on As/MoTe2.
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