Fluorinated graphene and hexagonal boron nitride as ALD seed layers for graphene-based van der Waals heterostructures
Fluorinated graphene and hexagonal boron nitride as ALD seed layers for graphene-based van der Waals heterostructures
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氟化石墨烯和六方氮化硼作为 ALD 种子层用于石墨烯基范德华异质结构
DOI:
10.1088/0957-4484/25/35/355202
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发表时间:
2014-09
期刊:
影响因子:
3.5
通讯作者:
Yu, Bin
中科院分区:
文献类型:
--
作者:
Hasan, Tawfique;Wang, Xinran;Luo, Jikui;Yu, Bin
Ultrathin dielectric materials prepared by atomic-layer-deposition (ALD) technology are commonly used in graphene electronics. Using the first-principles density functional theory calculations with van der Waals (vdW) interactions included, we demonstrate that single-side fluorinated graphene (SFG) and hexagonal boron nitride (h-BN) exhibit large physical adsorption energy and strong electrostatic interactions with H2O-based ALD precursors, indicating their potential as the ALD seed layer for dielectric growth on graphene. In graphene-SFG vdW heterostructures, graphene is n-doped after ALD precursor adsorption on the SFG surface caused by vertical intrinsic polarization of SFG. However, graphene-h-BN vdW heterostructures help preserving the intrinsic characteristics of the underlying graphene due to in-plane intrinsic polarization of h-BN. By choosing SFG or BN as the ALD seed layer on the basis of actual device design needs, the graphene vdW heterostructures may find applications in low-dimensional electronics.
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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:
NEUGEBAUER, J;SCHEFFLER, M
通讯作者:
SCHEFFLER, M
影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
--
作者:
HARE, EF;SHAFRIN, EG;ZISMAN, WA
通讯作者:
ZISMAN, WA
影响因子:
10.8
作者:
Koppens, Frank H. L.;Chang, Darrick E.;Javier Garcia de Abajo, F.
通讯作者:
Javier Garcia de Abajo, F.