Ultrafast charge transfer in dual graphene-WS_2 van der Waals quadrilayer heterostructures
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摘要
Using dual graphene–WS_2 quadrilayer heterostructures as an example, we find that the ultrafast transfer of electrons from WS_2 to graphene takes place within 114 fs, and the Coulomb field of the charge can effectively affect the interlayer electron transfer. This effect illustrates that the charge transfer in such van der Waals heterostructures may be controlled by an externally applied electric field for promising applications in photoelectric devices.
Using dual graphene–WS_2 quadrilayer heterostructures as an example, we find that the ultrafast transfer of electrons from WS_2 to graphene takes place within 114 fs, and the Coulomb field of the charge can effectively affect the interlayer electron transfer. This effect illustrates that the charge transfer in such van der Waals heterostructures may be controlled by an externally applied electric field for promising applications in photoelectric devices.
Using dual graphene–WS_2 quadrilayer heterostructures as an example, we find that the ultrafast transfer of electrons from WS_2 to graphene takes place within 114 fs, and the Coulomb field of the charge can effectively affect the interlayer electron transfer. This effect illustrates that the charge transfer in such van der Waals heterostructures may be controlled by an externally applied electric field for promising applications in photoelectric devices.
引文
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[2]He K,Kumar N,Zhao L,Wang Z,Mak K F,Zhao H and Shan J 2014 Phys.Rev.Lett.113 026803
[3]Cunningham P D,Hanbicki A T,Mccreary K M and Jonker B T 2017 ACS Nano 11 12601
[4]Echeverry J P,Urbaszek B,Am,T,Marie X and Gerber IC 2016 Phys.Rev.B 93 121107
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[6]Sun D Z,Rao Y,Reider G A,Chen G,You Y,Brézin L,Harutyunyan A R and Heinz T F 2014 Nano Lett.14 5625
[7]Chernikov A,Ruppert C,Hill H M,Rigosi A F and Heinz T F 2015 Nat.Photon.9 466
[8]Geim A K and Grigorieva I V 2013 Nature 499 419
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[11]Bernardi M,Palummo M and Grossman J C 2013 Nano Lett.13 3664
[12]Morozov S V,Novoselov K S,Katsnelson M I,Schedin F,Elias D C,Jaszczak J A and Geim A K 2008 Phys.Rev.Lett.100 016602
[13]Yu W J,Liu Y,Zhou H L,Yin A,Li Z,Huang Y and Duan X 2013 Nat.Nanotechnol.8 952
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[15]Tan H J,Fan Y,Zhou Y Q,Qu C,Xu W and Warner J H2016 ACS Nano 10 7866
[16]Roy K,Padmanabhan M,Goswami S,Sai T P,Ramalingam G,Raghavan S and Ghosh A 2013 Nat.Nanotechnol.8 826
[17]Choi M S,Lee G H,Yu Y J,Lee D Y,Lee S H,Kim P,Hone J and Yoo W J 2013 Nat.Commun.4 1624
[18]Yu W J,Li Z,Zhou H L,Chen Y,Wang Y,Huang Y and Duan X 2013 Nat.Mater.12 246
[19]Britnell L,Gorbachev R V,Jalil R,Belle B D,Schedin F,Mishchenko A,Georgiou T,Katsnelson M I,Eaves L and Morozov S V 2012 Science 335 947
[20]Shanmugam M,Jacobs-Gedrim R,Song E S and Yu B 2014Nanoscale 6 12682
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[22]He J Q,Kumar N,Bellus M Z,Chiu H Y,He D,Wang Yand Zhao H 2014 Nat.Commun.5 5622
[23]He J Q,He D W,Wang Y S and Zhao H 2017 Opt.Express25 1949
[24]Hill H M,Rigosi A F,Raja A,Chernikov A,Roquelet Cand Heinz T F 2017 Phys.Rev.B 96 205401
[25]Zhu X Y,Monahan N R,Gong Z Z,Zhu H,Williams K Wand Nelson C A 2015 J.Am.Chem.Soc.137 8313
[26]Long R and Prezhdo O V 2016 Nano Lett.16 1996
[27]Wang H,Bang J,Sun Y Y,Liang L,West D,Meunier Vand Zhang S 2016 Nat.Commun.7 11504
[28]Yu Y J,Zhao Y,Ryu S,Brus L E,Kim K S and Kim P2009 Nano Lett.9 3430
[29]Zhao W J,Ghorannevis Z,Chu L Q,Toh M,Kloc C,Tan P H and Eda G 2013 ACS Nano 7 791
[30]Haigh S J,Gholinia A,Jalil R,Romani S,Britnell L,Elias D C,Novoselov K S,Ponomarenko L A,Geim A K and Gorbachev R 2012 Nat.Mater.11 764
[31]Yuan L,Chung T F,Kuc A,Wan Y,Xu Y,Chen Y P,Heine T and Huang L 2018 Sci.Adv.4 e1700324
[32]Ruppert C,Chernikov A,Hill H M,Rigosi A F and Heinz T F 2017 Nano Lett.17 644
[33]Cunningham P D,McCreary K M and Jonker B T 2016 J.Phys.Chem.Lett.7 5242
[34]Wang H N,Zhang C J,Chan W M,Manolatou C,Tiwari S and Rana F 2016 Phys.Rev.B 93 045407
[35]Li Y Y,Cui Q N,Ceballos F,Lane S D,Qi Z and Zhao H2017 Nano Lett.17 6661