Journal
ACS APPLIED ELECTRONIC MATERIALS
Volume 3, Issue 2, Pages 733-742Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaelm.0c00897
Keywords
phosphorene; 2D materials; bilayer; density functional theory; nonequilibrium Green's function; quantum transport; I-V characteristics; Fano resonance; rectification
Funding
- Swedish National Infrastructure [SNIC2019-1-25]
- DST-SERB [CRG/2018/001131]
- CSIR [01(2886)/17/EMR(II)]
- European Erasmus fellowship program (NAMASTE)
- SSF [ITM17-0324]
- MHRD
- [SPARC/2018-2019/P116/SL]
- Swedish Foundation for Strategic Research (SSF) [ITM17-0324] Funding Source: Swedish Foundation for Strategic Research (SSF)
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In this study, electron transport in bilayer phosphorene was investigated using first-principles and nonequilibrium Green's function formalism. The results showed that substitutional doping can tune the anisotropic nature of phosphorene and play a crucial role in interlayer current with rectifying behavior. Additionally, Fano resonance was observed, indicating potential applications in electronic devices.
Electron transport in bilayer phosphorene is studied using the first-principles and nonequilibrium Green's function formalism. We have explored the interlayer properties of a vertically stacked bilayer structure with paired substitutional doping. The electron transport properties are calculated in bilayer phosphorene and compared with substitutional doping, which shows the tunable anisotropic nature of doped phosphorene in the I-V characteristics. Further, to understand the role played by dopants, the quantum transport properties of monolayer-bilayer monolayer (ML-BL-ML) nanojunction are studied with and without dopants. The interlayer direction-dependent current characteristics are discussed in different setups. This suggests that the dopants play a crucial role in the interlayer current and further provided rectifying behavior in the zigzag direction. Fano resonance is also observed as an effect that arises from the hydrogen-terminated edges interacting with the second layer. Our study demonstrates significant tuning of the electronic transport properties of the bilayer phosphorene implying its potential application in electronic devices.
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