scholarly journals The direct-to-indirect band gap crossover in two-dimensional van der Waals Indium Selenide crystals

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
G. W. Mudd ◽  
M. R. Molas ◽  
X. Chen ◽  
V. Zólyomi ◽  
K. Nogajewski ◽  
...  
Keyword(s):  
Band Gap ◽  
Van Der Waals ◽  
Indium Selenide ◽  
Two Dimensional ◽  
Indirect Band Gap

scholarly journals Evidence of direct electronic band gap in two-dimensional van der Waals indium selenide crystals

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Hugo Henck ◽  
Debora Pierucci ◽  
Jihene Zribi ◽  
Federico Bisti ◽  
Evangelos Papalazarou ◽  
...  
Keyword(s):  
Band Gap ◽  
Van Der Waals ◽  
Indium Selenide ◽  
Two Dimensional ◽  
Electronic Band ◽  
Electronic Band Gap

Layer-dependent photocatalysts of GaN/SiC-based multilayer van der Waals heterojunctions for Hydrogen Evolution

2021 ◽  
Author(s):  
Bojun Peng ◽  
Liang Xu ◽  
Jian Zeng ◽  
Xiaopeng Qi ◽  
Youwen Yang ◽  
...  
Keyword(s):  
Band Gap ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Van Der Waals ◽  
Environmentally Friendly ◽  
Wide Band ◽  
Two Dimensional ◽  
Wide Band Gap ◽  
Van Der Waals Heterostructures ◽  
Composite Photocatalysts

The development of non-precious, high-performance and environmentally friendly wide band gap semiconductor composite photocatalysts is highly desirable. Here we report two-dimensional (2D) GaN/SiC-based multilayer van der Waals heterostructures for hydrogen...

scholarly journals Copper halide diselenium: predicted two-dimensional materials with ultrahigh anisotropic carrier mobilities

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8016-8026 ◽  
Author(s):  
Fazel Shojaei ◽  
Maryam Azizi ◽  
Zabiollah Mahdavifar ◽  
Busheng Wang ◽  
Gilles Frapper
Keyword(s):  
Band Gap ◽  
First Principles ◽  
Two Dimensional ◽  
Copper Halide ◽  
New Class ◽  
Two Dimensional Materials ◽  
Bonding Properties ◽  
High Carrier ◽  
Indirect Band Gap ◽  
Very High

The physical and bonding properties of a new class of two-dimensional materials – CuXSe2 (X = Cl, Br) – are investigated using first-principles methods. 2D CuXSe2 are indirect band gap and possess extremely anisotropic and very high carrier mobilities.

Electronic structure modification in two-dimensional pentagonal PdS2 by external strain

2021 ◽  
Author(s):  
Mridu Sharma ◽  
Ranber Singh
Keyword(s):  
Electronic Structure ◽  
Band Gap ◽  
Valence Band ◽  
Electronic Structures ◽  
Two Dimensional ◽  
Structure Modification ◽  
Indirect Band Gap ◽  
D Orbitals ◽  
External Strain

We investigated the electronic structure modifications in two-dimensional (2D) pentagonal PdS<sub>2</sub> materials by external strains. In the absence of external strain the 2D pentagonal PdS<sub>2</sub> materials are indirect band gap semiconductors. The band gap decreases with an increase in the number of stacking PdS<sub>2</sub> monolayers. The external uniaxial and biaxial strains significantly modify the contributions of p-orbitals of S atoms and d-orbitals of Pd atoms to the conduction and valence band edges. It consequently modify the electronic structures of 2D pentagonal PdS<sub>2</sub> materials. This strain tunability of electronic structures of 2D pentagonal PdS<sub>2</sub> materials may be useful for their electro-mechanical applications.

Direct/indirect band gap tunability in van der Waals heterojunctions based on ternary 2D materials Mo1−x W x Y2

2019 ◽  
Vol 31 (50) ◽  
pp. 505302 ◽  
Author(s):  
Mengjuan Zhang ◽  
Jiangling Pan ◽  
Wenzhe Zhou ◽  
Aolin Li ◽  
Fangping Ouyang
Keyword(s):  
Band Gap ◽  
2D Materials ◽  
Van Der Waals ◽  
Indirect Band Gap

Two-dimensional van der Waals heterostructure of indium selenide/antimonene: Efficient carrier separation

2019 ◽  
Vol 727 ◽  
pp. 50-54 ◽  
Author(s):  
Nai-feng Shen ◽  
Xiao-dong Yang ◽  
Xin-xin Wang ◽  
Guang-hou Wang ◽  
Jian-guo Wan
Keyword(s):  
Van Der Waals ◽  
Indium Selenide ◽  
Two Dimensional ◽  
Van Der Waals Heterostructure ◽  
Carrier Separation

A new two-dimensional all-sp3 carbon allotrope with indirect band gap and superior carrier mobility

2021 ◽  
Author(s):  
Xing Yang ◽  
Yuwei Wang ◽  
Ruining Xiao ◽  
Tao Wen ◽  
Yulin Shen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Band Gap ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Indirect Band Gap

The success of fascinating graphene has motivated much interest in exploiting new two-dimensional (2D) carbon allotropes with excellent electronic and mechanical properties such as graphdiyne and penta-graphene. However, there is...

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