Tunable band gap and high carrier mobility in stanene by small organic molecule adsorption and external electric field

2021 ◽  
Author(s):  
Meixia Xiao ◽  
Xiao Shao ◽  
Hai Yang Song ◽  
Zhao Li ◽  
Minrong An ◽  
...  
Keyword(s):  
Electric Field ◽  
Band Gap ◽  
Electronic Properties ◽  
External Electric Field ◽  
Carrier Mobility ◽  
Organic Molecule ◽  
Small Organic Molecule ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Tunable Band Gap

The effects of small organic molecule (SOM) adsorption with benzene (C6H6), hexafluorobenzene (C6F6), and p‒difluorobenzene (C6H4F2) on the electronic properties of stanene under the external electric field are investigated through...

Germanene/GaGeTe heterostructure: a promising electric-field induced data storage device with high carrier mobility

2020 ◽  
Vol 22 (9) ◽  
pp. 5163-5169 ◽  
Author(s):  
Fu-Bao Zheng ◽  
Liang Zhang ◽  
Jin Zhang ◽  
Pei-ji Wang ◽  
Chang-Wen Zhang
Keyword(s):  
Electric Field ◽  
Band Gap ◽  
Data Storage ◽  
Carrier Mobility ◽  
Electronic Devices ◽  
Storage Device ◽  
New Type ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Opening Up

Opening up a band gap without lowering high carrier mobility in germanene and finding suitable substrate materials to form van der Waals heterostructures have recently emerged as an intriguing way of designing a new type of electronic devices.

scholarly journals Outstanding Tunable Electrical And Optical Characteristics In Monolayer Silicene At high Terahertz Frequencies

2021 ◽  
Author(s):  
Hamed Emami Nejad ◽  
Ali Mir ◽  
Ali Farmani ◽  
Reza Talebzadeh
Keyword(s):  
Electric Field ◽  
Fermi Level ◽  
External Electric Field ◽  
Carrier Mobility ◽  
Tight Binding ◽  
Optical Characteristics ◽  
Binding Model ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Terahertz Frequencies

Abstract Silicene, a zero-gap semi-metallic advanced material, has received much attention due to its extraordinary electronic and optical characteristics, which could be used in plasmonics nano-devices. This material presenting as a tunable material without degrading its high carrier mobility. By applying the rigorous numerical techniques, the optical and electrical properties of silicene at high terahertz frequencies are calculated here. Beneath the influence of environmental effects such as the Fermi level, temperature, and external electric field, on the optical conductivity and refractive index of silicene are investigated using the tight-binding model. The effect of Fermi level from zero to 1 eV, external electric field from zero to 2.5 eV, and temperature from 5 to 400 K are investigated on the optical properties of silicene. One of the interesting features of Silicene is its adjustable bandgap, which we are present here.

A first-principles study of the electrically tunable band gap in few-layer penta-graphene

2018 ◽  
Vol 20 (26) ◽  
pp. 18110-18116 ◽  
Author(s):  
Jinjin Wang ◽  
Zhanyu Wang ◽  
R. J. Zhang ◽  
Y. X. Zheng ◽  
L. Y. Chen ◽  
...  
Keyword(s):  
Electric Field ◽  
Band Gap ◽  
Electronic Properties ◽  
External Electric Field ◽  
First Principles ◽  
First Principles Study ◽  
Tunable Band Gap

Our calculations show that the electronic properties of few-layer penta-graphene can obviously be modulated through an external electric field.

Valley-selective circular dichroism and high carrier mobility of graphene-like BC6N

Nanoscale ◽  
2018 ◽  
Vol 10 (27) ◽  
pp. 13179-13186 ◽  
Author(s):  
Xiaobiao Liu ◽  
Xikui Ma ◽  
Han Gao ◽  
Xiaoming Zhang ◽  
Haoqiang Ai ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Band Gap ◽  
Carrier Mobility ◽  
Direct Band Gap ◽  
Black Phosphorene ◽  
Direct Band ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Circular Dichroïsm

Graphene-like borocarbonitride (g-BC6N) has a direct-band gap of 1.833 eV, high carrier mobility comparable to that of black phosphorene and a pair of inequivalent valleys with opposite Berry curvatures in K and K′ points.

scholarly journals Large Enhancement and Tunable Band Gap in Silicene by Small Organic Molecule Adsorption

2014 ◽  
Vol 118 (40) ◽  
pp. 23361-23367 ◽  
Author(s):  
Thaneshwor P. Kaloni ◽  
Georg Schreckenbach ◽  
Michael S. Freund
Keyword(s):  
Band Gap ◽  
Organic Molecule ◽  
Small Organic Molecule ◽  
Molecule Adsorption ◽  
Large Enhancement ◽  
Tunable Band Gap

Penta-MX2 (M = Ni, Pd and Pt; X = P and As) monolayers: direct band-gap semiconductors with high carrier mobility

2019 ◽  
Vol 7 (12) ◽  
pp. 3569-3575 ◽  
Author(s):  
Shifeng Qian ◽  
Xiaowei Sheng ◽  
Xian Xu ◽  
Yuxiang Wu ◽  
Ning Lu ◽  
...  
Keyword(s):  
Band Gap ◽  
First Principles ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Ring Network ◽  
Direct Band Gap ◽  
Direct Band ◽  
High Carrier Mobility ◽  
High Carrier

Two-dimensional binary MX2 (M = Ni, Pd and Pt; X = P and As) exhibiting a beautiful pentagonal ring network is discussed through first principles calculations.

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