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dc.contributor.authorWang, Sake
dc.contributor.authorChou, Jyh-Pin
dc.contributor.authorRen, Chongdan
dc.contributor.authorTian, Hongyu
dc.contributor.authorYu, Jin
dc.contributor.authorSun, Changlong
dc.contributor.authorXu, Yujing
dc.contributor.authorSun, Minglei
dc.date.accessioned2019-04-02T07:11:55Z
dc.date.available2019-04-02T07:11:55Z
dc.date.issued2019-03-26
dc.identifier.citationWang S, Chou J-P, Ren C, Tian H, Yu J, et al. (2019) Tunable Schottky barrier in graphene/graphene-like germanium carbide van der Waals heterostructure. Scientific Reports 9. Available: http://dx.doi.org/10.1038/s41598-019-40877-z.
dc.identifier.issn2045-2322
dc.identifier.doi10.1038/s41598-019-40877-z
dc.identifier.urihttp://hdl.handle.net/10754/631797
dc.description.abstractThe structural and electronic properties of van der Waals (vdW) heterostructrue constructed by graphene and graphene-like germanium carbide were investigated by computations based on density functional theory with vdW correction. The results showed that the Dirac cone in graphene can be quite well-preserved in the vdW heterostructure. The graphene/graphene-like germanium carbide interface forms a p-type Schottky contact. The p-type Schottky barrier height decreases as the interlayer distance decreases and finally the contact transforms into a p-type Ohmic contact, suggesting that the Schottky barrier can be effectively tuned by changing the interlayer distance in the vdW heterostructure. In addition, it is also possible to modulate the Schottky barrier in the graphene/graphene-like germanium carbide vdW heterostructure by applying a perpendicular electric field. In particular, the positive electric field induces a p-type Ohmic contact, while the negative electric field results in the transition from a p-type to an n-type Schottky contact. Our results demonstrate that controlling the interlayer distance and applying a perpendicular electric field are two promising methods for tuning the electronic properties of the graphene/graphene-like germanium carbide vdW heterostructure, and they can yield dynamic switching among p-type Ohmic contact, p-type Schottky contact, and n-type Schottky contact in a single graphene-based nanoelectronics device.
dc.description.sponsorshipSake Wang would like to acknowledge the funding support from the National Science Foundation for Young Scientists of China (grant number 11704165) and the Science Foundation of Jinling Institute of Technology (grant number 40620064). Chongdan Ren would like to acknowledge the funding support from the National Natural Science Foundation of China (grant number 11864047), the Science Foundation of Guizhou Science and Technology Department (grant number QKHJZ[2015]2150), and the Science Foundation of Guizhou Provincial Education Department (grant number QJHKYZ[2016]092).
dc.publisherSpringer Nature
dc.relation.urlhttps://www.nature.com/articles/s41598-019-40877-z
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleTunable Schottky barrier in graphene/graphene-like germanium carbide van der Waals heterostructure
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalScientific Reports
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionCollege of Science, Jinling Institute of Technology, Nanjing, Jiangsu, 211169, China.
dc.contributor.institutionDepartment of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, 999077, China.
dc.contributor.institutionDepartment of Physics, Zunyi Normal College, Zunyi, Guizhou, 563002, China.
dc.contributor.institutionSchool of Physics and Electronic Engineering, Linyi University, Linyi, Shandong, 276005, China.
dc.contributor.institutionSchool of Materials Science and Engineering, Southeast University, Nanjing, Jiangsu, 211189, China.
dc.contributor.institutionSchool of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255049, China.
kaust.personXu, Yujing
kaust.personSun, Minglei
refterms.dateFOA2019-04-02T08:46:19Z
dc.date.published-online2019-03-26
dc.date.published-print2019-12


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.