Theoretical prediction of topological insulators in two-dimensional ternary transition metal chalcogenides (MM'X4, M = Ta, Nb, or V; M’= Ir, Rh, or Co; X = Se or Te)

2021 ◽  
Author(s):  
Ali Sufyan ◽  
Gennevieve Macam ◽  
Chia-Hsiu Hsu ◽  
Zhi-Quan Huang ◽  
Shin-Ming Huang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Theoretical Prediction ◽  
Topological Insulators ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides

First principles studies on electronic and contact properties of Single layer 2H-MoS2/1T'-MX2 heterojunctions

2022 ◽  
Author(s):  
Jiao Yu ◽  
Caijuan Xia ◽  
Zhengyang Hu ◽  
jianping Sun ◽  
Xiaopeng Hao ◽  
...  
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Single Layer ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides

With in-plane heterojunction contacts between semiconducting 2H phase (as channel) and the metallic 1T' phase (as electrode), the two-dimensional (2D) transition metal chalcogenides (TMDs) field-effect transistors (FETs) have received much...

Two‐Dimensional Transition Metal Chalcogenides for Alkali Metal Ions Storage

ChemSusChem ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1114-1154 ◽  
Author(s):  
Yingxi Zhang ◽  
Liao Zhang ◽  
Tu'an Lv ◽  
Paul K. Chu ◽  
Kaifu Huo
Keyword(s):  
Transition Metal ◽  
Alkali Metal ◽  
Metal Ions ◽  
Alkali Metal Ions ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides

Unveiling surface charge on chalcogen atoms toward the high aspect-ratio colloidal growth of two-dimensional transition metal chalcogenides

Nanoscale ◽  
2021 ◽  
Author(s):  
Yunhee Cho ◽  
Thi Anh Le ◽  
Hyunjung Kim ◽  
Yeseul Hong ◽  
Heemin Hwang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Aspect Ratio ◽  
Surface Charge ◽  
High Aspect Ratio ◽  
Steric Effects ◽  
Metal Chalcogenides ◽  
Anisotropic Growth ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides ◽  
Ligand Adsorption

The steric effects of the ligands unveil the charged chalcogen sites which are induced by the ligand adsorption, thus promoting the anisotropic growth of two-dimensional transition metal chalcogenides (TMCs).

scholarly journals Tunable electronic structure of two-dimensional transition metal chalcogenides for optoelectronic applications

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1675-1694 ◽  
Author(s):  
Yumei Jing ◽  
Baoze Liu ◽  
Xukun Zhu ◽  
Fangping Ouyang ◽  
Jian Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Devices ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides ◽  
Transition Metal Chalcogenides ◽  
Optoelectronic Applications ◽  
Chemical Strategies

AbstractDiffering from its bulk counterparts, atomically thin two-dimensional transition metal dichalcogenides that show strong interaction with light are considered as new candidates for optoelectronic devices. Either physical or chemical strategies can be utilized to effectively tune the intrinsic electronic structures for adopting optoelectronic applications. This review will focus on the different tuning strategies that include its physics principles, in situ experimental techniques, and its application of various optoelectronic devices.

scholarly journals Giant nonlinear optical activity in two-dimensional palladium diselenide

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Juan Yu ◽  
Xiaofei Kuang ◽  
Junzi Li ◽  
Jiahong Zhong ◽  
Cheng Zeng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Photon Absorption ◽  
Metal Chalcogenides ◽  
Potential Candidate ◽  
Two Dimensional ◽  
Optical Effects ◽  
Nonlinear Optical Effects ◽  
Transition Metal Chalcogenides

AbstractNonlinear optical effects in layered two-dimensional transition metal chalcogenides have been extensively explored recently because of the promising prospect of the nonlinear optical effects for various optoelectronic applications. However, these materials possess sizable bandgaps ranging from visible to ultraviolet region, so the investigation of narrow-bandgap materials remains deficient. Here, we report our comprehensive study on the nonlinear optical processes in palladium diselenide (PdSe2) that has a near-infrared bandgap. Interestingly, this material exhibits a unique thickness-dependent second harmonic generation feature, which is in contrast to other transition metal chalcogenides. Furthermore, the two-photon absorption coefficients of 1–3 layer PdSe2 (β ~ 4.16 × 105, 2.58 × 105, and 1.51 × 105 cm GW−1) are larger by two and three orders of magnitude than that of the conventional two-dimensional materials, and giant modulation depths (αs ~ 32%, 27%, and 24%) were obtained in 1–3 layer PdSe2. Such unique nonlinear optical characteristics make PdSe2 a potential candidate for technological innovations in nonlinear optoelectronic devices.

Electronic, magnetic, catalytic, and electrochemical properties of two-dimensional Janus transition metal chalcogenides

2018 ◽  
Vol 6 (17) ◽  
pp. 8021-8029 ◽  
Author(s):  
Wenzhou Chen ◽  
Yuanju Qu ◽  
Lingmin Yao ◽  
Xianhua Hou ◽  
Xingqiang Shi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electrochemical Properties ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides ◽  
2D Nanomaterials

Two dimensional (2D) nanomaterials have received increasing interest because of their unique properties for versatile applications.

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