Unexpected band gap evolution and high carrier mobility sparked by the orbital variation in two-dimensional GaGeX (X = S, Se, Te)

2021 ◽  
pp. 115112
Author(s):  
Lili Xu ◽  
Wenhan Zhou ◽  
Wenqiang Liu ◽  
Xinyan Xia ◽  
Gaoyu Liu ◽  
...  
Keyword(s):  
Band Gap ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Orbital Variation

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.

Highly efficient heterojunction solar cells enabled by edge-modified tellurene nanoribbons

2020 ◽  
Vol 22 (48) ◽  
pp. 28414-28422
Author(s):  
Yunzhi Gao ◽  
Kai Wu ◽  
Wei Hu ◽  
Jinlong Yang
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Band Gap ◽  
Light Absorption ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Visible Light Absorption ◽  
Heterojunction Solar Cells ◽  
High Carrier Mobility ◽  
High Carrier

Tellurene, a two-dimensional (2D) semiconductor, meets the requirements for optoelectronic applications with desirable properties, such as a suitable band gap, high carrier mobility, strong visible light absorption and high air stability.

Germanium monosulfide monolayer: a novel two-dimensional semiconductor with a high carrier mobility

2016 ◽  
Vol 4 (11) ◽  
pp. 2155-2159 ◽  
Author(s):  
Feng Li ◽  
Xiuhong Liu ◽  
Yu Wang ◽  
Yafei Li
Keyword(s):  
Band Gap ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
High Carrier Mobility ◽  
High Carrier

GeS monolayer is semiconducting with a moderate band gap and it also has rather high carrier mobilities.

The germanium telluride monolayer: a two dimensional semiconductor with high carrier mobility for photocatalytic water splitting

2018 ◽  
Vol 6 (9) ◽  
pp. 4119-4125 ◽  
Author(s):  
Man Qiao ◽  
Yanli Chen ◽  
Yu Wang ◽  
Yafei Li
Keyword(s):  
Band Gap ◽  
Water Splitting ◽  
Carrier Mobility ◽  
Band Edge ◽  
Two Dimensional ◽  
Photocatalytic Water Splitting ◽  
Germanium Telluride ◽  
High Carrier Mobility ◽  
High Carrier

The GeTe monolayer is semiconducting with a considerable band gap and shows appropriate band edge positions for photocatalytic water splitting.

Copper(i) sulfide: a two-dimensional semiconductor with superior oxidation resistance and high carrier mobility

2019 ◽  
Vol 4 (1) ◽  
pp. 223-230 ◽  
Author(s):  
Yu Guo ◽  
Qisheng Wu ◽  
Yunhai Li ◽  
Ning Lu ◽  
Keke Mao ◽  
...  
Keyword(s):  
Band Gap ◽  
Oxidation Resistance ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Direct Band Gap ◽  
Direct Band ◽  
High Carrier Mobility ◽  
High Carrier

δ-Cu2S sheets are energetically favorable, and exhibit superior oxidation resistance, suitable direct band gap, and ultrahigh carrier mobility.

A graphene-like Mg3N2monolayer: high stability, desirable direct band gap and promising carrier mobility

2016 ◽  
Vol 18 (44) ◽  
pp. 30379-30384 ◽  
Author(s):  
Peng-Fei Liu ◽  
Liujiang Zhou ◽  
Thomas Frauenheim ◽  
Li-Ming Wu
Keyword(s):  
Band Gap ◽  
Carrier Mobility ◽  
High Stability ◽  
Two Dimensional ◽  
Direct Band Gap ◽  
Direct Band ◽  
High Carrier Mobility ◽  
High Carrier

A novel two-dimensional material, g-Mg3N2, exhibits an intrinsic direct band gap of 1.86 eV, outstanding stability (2000 K) and a high carrier mobility of up to 103cm2V−1s−1which is larger than that of MoS2and close to that of few-layer phosphorene.

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