Tunable electronic properties in the van der Waals heterostructure of germanene/germanane

2015 ◽  
Vol 17 (18) ◽  
pp. 12194-12198 ◽  
Author(s):  
Run-wu Zhang ◽  
Chang-wen Zhang ◽  
Wei-xiao Ji ◽  
Feng Li ◽  
Miao-juan Ren ◽  
...  

We investigate the structural and electronic properties of germanene/germanane heterostructures. The band gap in these heterostructures can be effectively modulated by the external electric field and strain. These results provide a route to design high-performance FETs operating at room temperature in nanodevices.

2019 ◽  
Vol 21 (39) ◽  
pp. 22140-22148 ◽  
Author(s):  
Tuan V. Vu ◽  
Nguyen V. Hieu ◽  
Le T. P. Thao ◽  
Nguyen N. Hieu ◽  
Huynh V. Phuc ◽  
...  

van der Waals heterostructures by stacking different two-dimensional materials are being considered as potential materials for nanoelectronic and optoelectronic devices because they can show the most potential advantages of individual 2D materials.


RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14625-14630 ◽  
Author(s):  
Jimin Shang ◽  
Shuai Zhang ◽  
Xuerui Cheng ◽  
Zhongming Wei ◽  
Jingbo Li

By using first-principles calculations, we investigate the electronic properties of a ZrS2/HfS2 heterostructure modulated by an external electric field.


2018 ◽  
Vol 20 (44) ◽  
pp. 27856-27864 ◽  
Author(s):  
P. T. T. Le ◽  
Nguyen N. Hieu ◽  
Le M. Bui ◽  
Huynh V. Phuc ◽  
Bui D. Hoi ◽  
...  

Combining van der Waals heterostructures by stacking different two-dimensional materials on top of each other layer-by-layer can enhance their desired properties and greatly extend the applications of the parent materials.


2019 ◽  
Vol 716 ◽  
pp. 155-161 ◽  
Author(s):  
Khang D. Pham ◽  
Nguyen N. Hieu ◽  
Le M. Bui ◽  
Huynh V. Phuc ◽  
Bui D. Hoi ◽  
...  

2019 ◽  
Vol 21 (15) ◽  
pp. 7765-7772 ◽  
Author(s):  
Yuting Wei ◽  
Fei Wang ◽  
Wenli Zhang ◽  
Xiuwen Zhang

The 0.52/0.83 eV direct bandgap of P/PbI2 possesses a type-II band alignment, can effectively be regulated to 0.90/1.54 eV using an external electric field in DFT/HSE06, and is useful for solar energy and optoelectronic devices.


RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25582-25588 ◽  
Author(s):  
Yaqiang Ma ◽  
Xu Zhao ◽  
Mengmeng Niu ◽  
Xianqi Dai ◽  
Wei Li ◽  
...  

The future development of optoelectronic devices will require an advanced control technology in electronic properties, for example by an external electric field (Efield).


Author(s):  
Nguyen Van Chuong ◽  
Nguyen Ngoc Hieu ◽  
Nguyen Van Hieu

This paper constructs a new type of two-dimensional graphene-like Janus GaInSTe monolayer and systematically investigates its structural and electronic properties as well as the effect of external electric field using first-principles calculations. In the ground state, Janus GaInSTe monolayer is dynamically stable with no imaginary frequencies in its phonon spectrum and possesses a direct band gap semiconductor. The band gap of Janus GaInSTe monolayer can be tuned by applying an electric field, which leads the different transitions from semiconductor to metal, and from indirect to direct band gap. These findings show a great potential application of Janus GaInSTe material for designing next-generation devices.


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