Imperial College London
Alternate

ProfessorCeciliaMattevi

Faculty of Engineering, Department of Materials

Professor of Materials Science
 
 
 
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Contact

 

+44 (0)20 7594 0833c.mattevi

 
 
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Location

 

2.11Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Henck:2018:10.1103/PhysRevB.97.155421,
author = {Henck, H and Ben, Aziz Z and Pierucci, D and Laourine, F and Reale, F and Palczynski, P and Chaste, J and Silly, MG and Bertran, F and Le, Fevre P and Lhuillier, E and Wakamura, T and Mattevi, C and Rault, JE and Calandra, M and Ouerghi, A},
doi = {10.1103/PhysRevB.97.155421},
journal = {Physical Review B},
pages = {155421  1--155421  8},
title = {Electronic band structure of two-dimensional WS2/Graphene  van der Waals heterostructures},
url = {http://dx.doi.org/10.1103/PhysRevB.97.155421},
volume = {97},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Combining  single-layer two-dimensional  semiconducting  transition  metal  dichalcogenides  (TMDs)with  graphene layer  in  van  der  Waals  heterostructuresoffers  an  intriguing  means  of  controlling  the  electronic  properties  through these heterostructures.  Here,  we  report the electronic and  structural properties  of  transferred  single  layer  WS2on epitaxial  graphene  using micro-Raman  spectroscopy, angle-resolved  photoemission  spectroscopy  measurements(ARPES)and Density Functional Theory(DFT)calculations. The results show good electronic properties as well as well-defined  band  arising  from  the strong  splitting  of  the  single  layer  WS2valence  band  at  K  points,  with  a maximum  splitting  of  0.44  eV.By  comparing  our DFT results  with  local  and  hybrid  functionals,  we  find  the top valence band of the experimental heterostructure is closeto the calculations forsuspended single layer WS2. .Our results  provide  an  important  reference  for  future  studies  of  electronic  properties  of  WS2and its applications  in valleytronic devices.
AU  - Henck,H
AU  - Ben,Aziz Z
AU  - Pierucci,D
AU  - Laourine,F
AU  - Reale,F
AU  - Palczynski,P
AU  - Chaste,J
AU  - Silly,MG
AU  - Bertran,F
AU  - Le,Fevre P
AU  - Lhuillier,E
AU  - Wakamura,T
AU  - Mattevi,C
AU  - Rault,JE
AU  - Calandra,M
AU  - Ouerghi,A
DO  - 10.1103/PhysRevB.97.155421
EP  - 1
PY  - 2018///
SN  - 2469-9950
SP  - 155421
TI  - Electronic band structure of two-dimensional WS2/Graphene  van der Waals heterostructures
T2  - Physical Review B
UR  - http://dx.doi.org/10.1103/PhysRevB.97.155421
UR  - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.155421
UR  - http://hdl.handle.net/10044/1/58593
VL  - 97
ER  -
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