Computational study of phase engineered transition metal dichalcogenides heterostructures
Computational study of phase engineered transition metal dichalcogenides heterostructures
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相工程过渡金属二硫属化物异质结构的计算研究
DOI:
10.1016/j.commatsci.2017.10.014
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发表时间:
2018-02
影响因子:
3.3
通讯作者:
Quhe Ruge
中科院分区:
文献类型:
--
作者:
Ma Jiachen;Zhang Qiaoxuan;Yang Jie;Feng Shenyan;Lei Ming;Quhe Ruge
Van der Waals heterostructures composed of the same transition metal dichalcogenide with different structural phases are promising for optimizing the electrical contacts in two-dimensional transistors. While most theoretical studies are focused on the “more stable” 1T′ or Tdphase, experiments show that the metastable 1T phase can also form heterostructure with the 2H phase. However, the intrinsic properties of these phase engineered van der Waals heterostructures are not clear. By first–principles calculations, we investigate the structural and electronic properties of the MX2(M = Mo, W; X = S, Se, Te) heterostructures composed by the semiconducting 2H and metallic 1T phases. A very small amount of electron transfers from 1T to 2H phases in the checked heterostructures, rendering the 2H phase undoped or only slightly N–doped. The existence of the Schottky barriers (0.39–0.94 eV) is found common in the free-standing 2H/1T MX2heterostructures. In addition, the zero tunnel barrier heights in the checked heterostructures are advantageous for achieving high charge injection rate.
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DOI:
10.1038/s43586-022-00151-5
发表时间:
2014-03
期刊:
Nature Reviews Methods Primers
影响因子:
--
作者:
R. Gorbachev
通讯作者:
R. Gorbachev
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
3.7
作者:
B. Ouyang;Z. Mi;Jun Song
通讯作者:
B. Ouyang;Z. Mi;Jun Song
影响因子:
38.3
作者:
Acerce, Muharrem;Voiry, Damien;Chhowalla, Manish
通讯作者:
Chhowalla, Manish
影响因子:
38.3
作者:
Hong, Xiaoping;Kim, Jonghwan;Wang, Feng
通讯作者:
Wang, Feng