Abstract
Recent years, graphene-based van der Waals (vdW) heterojunction becomes more and more popular in optoelectronics, nanoelectronics, and spintronics device area. Besides, the modulation of Schottky barrier height (SBH) is rather desired to improve the performance of corresponding devices. In the current study, we have focused on the interfacial characteristics and electronic structure of graphene/AlN heterostructure by the first-principles calculations. The results show the intrinsic electronic properties are preserved after graphene and AlN contacting due to the weak interaction between two sublayers. The Bader charge analysis shows that the electrons are transferred from AlN to graphene, leading to graphene as an acceptor while AlN as a donor. Besides, by varying the interlayer distance from 2.5 to 4.3 Å, we found both the n-SBH and p-SBH are significantly tuned. In addition, the optical absorption intensity is enhanced significantly in the graphene/AlN heterojunction. Our findings imply that the SBH is controllable, which is highly desirable in the nano-electronic devices.
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Data Availability Statement
This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.]
References
K.S. Novoselov, A.K. Geim, S.V. Morozov et al., Electric field effect in atomically thin carbon films. Science 306(5696), 666–9 (2004)
K.S. Novoselov, A.K. Geim, S.V. Morozov et al., Two-dimensional gas of massless Dirac fermions in graphene. Nature 438(7065), 197–200 (2005)
Q.H. Wang, K. Kalantar-Zadeh, A. Kis et al., Electronics and optoelectronics of two-dimensional transition metal dichalcogenides. Nat. Nanotechnol. 7(11), 699–712 (2012)
X. Duan, C. Wang, A. Pan et al., Two-dimensional transition metal dichalcogenides as atomically thin semiconductors: opportunities and challenges. Chem. Soc. Rev. 44(24), 8859–76 (2015)
W. Choi, N. Choudhary, G.H. Han et al., Recent development of two-dimensional transition metal dichalcogenides and their applications. Mater. Today 20(3), 116–30 (2017)
Z. Gao, Z. Zhou, D. Tománek, Degenerately doped transition metal decalcomania as ohmic homojunction contacts to transition metal dichalcogenide semiconductors. ACS Nano 13(5), 5103–11 (2019)
H. Liu, A.T. Neal, Z. Zhu et al., Phosphorene: an unexplored 2D semiconductor with a high hole mobility. ACS Appl. Nano Mater. 8(4), 4033–41 (2014)
A. Carvalho, M. Wang, X. Zhu et al., Phosphorene: from theory to applications. Nat. Rev. Mater. 1(6), 16061 (2016)
A. Naseri, M. Samadi, A. Pourjavadi et al., Graphitic carbon nitride (g-C\(_{3\text{ N}_{4}})\)-based photocatalysts for solar hydrogen generation: recent advances and future development directions. J. Mater. Chem. A 5(45), 23406–33 (2017)
W.-J. Ong, L.-L. Tan, Y.H. Ng et al., Graphitic carbon nitride (g-C\(_{3}\text{ N}_{{4}})\)-based photocatalysts for artificial photosynthesis and environmental remediation: are we a step closer to achieving sustainability? Chem. Rev. 116(12), 7159–329 (2016)
A.K. Singh, H.L. Zhuang, R.G. Hennig, Ab initio synthesis of single-layer III–V materials. Phys. Rev. B 89(24), 245431 (2014)
Z. Zhang, Z. Geng, D. Cai et al., Structure, electronic and magnetic properties of hexagonal boron nitride sheets doped by 5d transition metal atoms: first-principles calculations and molecular orbital analysis. Physica E (Amst., Neth.) 65(7), 24–29 (2015)
A. Onen, D. Kecik, E. Durgun et al., GaN: from three- to two-dimensional single-layer crystal and its multilayer van der Waals solids. Phys. Rev. B 93(8), 085431 (2016)
D. Kecik, A. Onen, M. Konuk et al., Fundamentals, progress, and future directions of nitride-based semiconductors and their composites in two-dimensional limit: a first-principles perspective to recent synthesis. Appl. Phys. Rev. 5(1), 011105 (2018)
Z.Y. Al Balushi, K. Wang, R.K. Ghosh et al., Two-dimensional gallium nitride realized via graphene encapsulation. Nat. Mater. 15(11), 1166–71 (2016)
Z. Zhang, M. Hua, J. He et al., Ab initio study of impact of nitridation at amorphous-SiN x /GaN interface. Appl. Phys. Express 11(8), 081003 (2018)
J. Chen, Z. Zhang, Y. Guo et al., Schottky barrier height at metal/ZnO interface: a first-principles study. Microelectron. Eng. 216(8), 111056 (2019)
Z. Zhang, Y. Guo, J. Robertson, Atomic structure and band alignment at Al\(_2\)O\(_3\)/GaN, Sc\(_2\)O\(_3\)/GaN and La\(_2\)O\(_3\)/GaN interfaces: a first-principles study. Microelectron. Eng. 216, 111039 (2019)
X. Liu, Z. Zhang, Z. Luo et al., Tunable electronic properties of graphene/g-AlN heterostructure: the effect of vacancy and strain engineering. Nanomaterials 9(12), 1674 (2019)
X. Gao, Y. Shen, Y. Ma et al., Graphene/g-GeC bilayer heterostructure: modulated electronic properties and interface contact via external vertical strains and electric fields. Carbon 146(5), 337–47 (2019)
W.X. Zhang, C.H. Shi, C. He et al., External-strain induced transition from Schottky to ohmic contact in Graphene/InS and Graphene/Janus In2SSe heterostructures. J. Solid State Chem. 289(9), 121511 (2020)
J.E. Padilha, A. Fazzio, A.J. Da Silva, Van der Waals heterostructure of phosphorene and graphene: tuning the Schottky barrier and doping by electrostatic gating. Phys. Rev. Lett. 114(6), 066803 (2015)
A.F. Young, P. Kim, Quantum interference and Klein tunnelling in graphene heterojunctions. Nat. Phys. 5(3), 222 (2009)
J.Y. Kwak, J. Hwang, B. Calderon et al., Electrical characteristics of multilayer MoS\(_{2}\) FET’s with MoS\(_{2}\)/graphene heterojunction contacts. Nano Lett. 14(8), 4511–4516 (2014)
Z. Deng, X. Wang, Strain engineering on the electronic states of two-dimensional GaN/graphene heterostructure. RSC Adv. 9(45), 26024–26029 (2019)
R. Cao, Z. Zhang, C. Wang et al., Interfacial bonding and electronic structure of GaN/GaAs interface: a first-principles study. J. Appl. Phys. 117(13), 135302 (2015)
Z. Deng, X. Wang, J. Cui, Effect of interfacial defects on the electronic properties of graphene/g-GaN heterostructures. RSC Adv. 9(24), 13418–23 (2019)
W. Wang, Y. Zheng, X. Li et al., 2D AlN layers sandwiched between graphene and Si substrates. Adv. Mater. 31(1), 1803448 (2019)
P. Tsipas, S. Kassavetis, D. Tsoutsou et al., Evidence for graphite-like hexagonal AlN nanosheets epitaxially grown on single crystal Ag(111). Appl. Phys. Lett. 103(25), 251605 (2013)
Y. He, Y. Yang, Z. Zhang et al., Strain-induced electronic structure changes in stacked van der Waals heterostructures. Nano Lett. 16(5), 3314–3320 (2016)
S. Deng, A.V. Sumant, V. Berry, Strain engineering in two-dimensional nanomaterials beyond graphene. Nano Today 22(4), 14–35 (2018)
T. Huang, W. Wei, X. Chen et al., Strained 2D layered materials and heterojunctions. Ann. Phys. (Berl., Ger.) 531(4), 1800465 (2019)
A. Sciuto, A. La Magna, G.G.N. Angilella et al., Extensive fermi-level engineering for graphene through the interaction with aluminum nitrides and oxides. Phys. Status Solidi RRL 1(3), 1900399 (2019)
G. Kresse, J. Furthmüller, Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Phys. Rev. B 54(16), 11169–86 (1996)
J.P. Perdew, K. Burke, M. Ernzerhof, Generalized gradient approximation made simple. Phys. Rev. Lett. 77(18), 3865–3868 (1996)
P.E. Blöchl, Projector augmented-wave method. Phys. Rev. B 50(24), 17953–79 (1994)
H.J. Monkhorst, Special points for Brillouin-zone integrations. Phys. Rev. B 13(5), 5188–92 (1976)
S. Grimme, Semiempirical GGA-type density functional constructed with a long-range dispersion correction. J. Comput. Chem. 27(15), 1787–99 (2006)
V. Wang, N. Xu, J.C. Liu et al. VASPKIT: a user-friendly interface facilitating high-throughput computing and analysis using VASP code (2019). arXiv:1908.08269. Accessed 25 Aug 2019
Z. Zhang, B. Huang, Q. Qian et al., Strain-tunable III-nitride/ZnO heterostructures for photocatalytic water-splitting: a hybrid functional calculation. APL Mater. 8(4), 041114 (2020)
M. Sun, J.-P. Chou, J. Yu et al., Effects of structural imperfection on the electronic properties of graphene/WSe\(_{{2}}\) heterostructures. J. Mater. Chem. C 5(39), 10383–90 (2017)
V. Mansurov, T. Malin, Y. Galitsyn et al., Graphene-like AlN layer formation on (111)Si surface by ammonia molecular beam epitaxy. J. Cryst. Growth 428(10), 93–97 (2015)
F. Zhang, W. Li, Y. Ma et al., Strain effects on the Schottky contacts of graphene and MoSe\(_{2}\) heterobilayers. Physica E (Amst., Neth.) 103(8), 284–288 (2018)
H.V. Phuc, N.N. Hieu, B.D. Hoi et al., Out-of-plane strain and electric field tunable electronic properties and Schottky contact of graphene/antimonene heterostructure. Superlattices Microstruct. 112(5), 554–60 (2017)
S. Tongay, W. Fan, J. Kang et al., Tuning interlayer coupling in large-area heterostructures with CVD-grown MoS2 and WS2 monolayers. Nano Lett. 14(6), 3185–90 (2014)
J. Bardeen, Surface states and rectification at a metal semi-conductor contact. Phys. Rev. 71(10), 717 (1947)
C. Si, Z. Lin, J. Zhou et al., Controllable Schottky barrier in GaSe/graphene heterostructure: the role of interface dipole. 2D Mater. 4(1), 015027 (2016)
L. Matthes, O. Pulci, F. Bechstedt, Optical properties of two-dimensional honeycomb crystals graphene, silicene, germanene, and tinene from first principles. New J. Phys. 16(10), 105007 (2014)
L. Matthes, O. Pulci, F. Bechstedt, Influence of out-of-plane response on optical properties of two-dimensional materials: first principles approach. Phys. Rev. B 94(20), 205408 (2016)
F. Hüser, T. Olsen, K.S. Thygesen, How dielectric screening in two-dimensional crystals affects the convergence of excited-state calculations: monolayer MoS2. Phys. Rev. B 88(24), 245309 (2013)
J. Heyd, G.E. Scuseria, M. Ernzerhof, Hybrid functionals based on a screened Coulomb potential. J. Chem. Phys. 118(18), 8207–8215 (2003)
J. Heyd, G.E. Scuseria, M. Ernzerhof, Erratum: Hybrid functionals based on a screened Coulomb potential [J. Chem. Phys. 118, 8207 (2003)]. J. Chem. Phys. 124(21), 219906 (2006)
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This research was funded by the National Natural Science Foundation of China, Grant number 11664005; Guizhou Science and Technology Foundation, Grant number 2020,1Y021.
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X.L. mainly complete the calculations and the draft writing of this paper. Z.Z. helps to analyze some results and give some important suggestions. B.L. provides the software. Z.D. helps to modify the manuscripts. Z.L. provides the main idea of this paper and helps to modify the manuscript very carefully.
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Liu, X., Zhang, Z., Lv, B. et al. Impact of the vertical strain on the Schottky barrier height for graphene/AlN heterojunction: a study by the first-principles method. Eur. Phys. J. B 94, 28 (2021). https://doi.org/10.1140/epjb/s10051-020-00010-w
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DOI: https://doi.org/10.1140/epjb/s10051-020-00010-w