Related Experiment Video
Updated: Aug 6, 2025
09:25
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
Published on: July 5, 2019
9.6K
Quasi-One-Dimensional van der Waals Transition Metal Trichalcogenides
Mengdi Chen1,2,3, Lei Li1,2,3, Manzhang Xu1,2,3
1Frontiers Science Center for Flexible Electronics (FSCFE) & Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
Research (Washington, D.C.)
|March 17, 2023
Summary
Transition metal trichalcogenides (TMTCs) are 1D quantum materials with unique properties. This review covers their synthesis, properties, and applications in nanoelectronics and beyond.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Transition metal trichalcogenides (TMTCs) are quasi-one-dimensional (1D) van der Waals layered semiconductors.
- Their unique structure leads to novel electrical, optical, thermoelectric, and magnetic properties, including variable bandgaps, charge density waves, and superconductivity.
Purpose of the Study:
- To provide a comprehensive review of the state-of-the-art in TMTC materials, devices, and applications.
- To discuss the synthesis methods, physical properties, and potential uses of TMTCs.
- To outline future perspectives and challenges in TMTC research and applications.
Main Methods:
- Literature review of TMTC materials, synthesis, properties, and devices.
- Analysis of current research trends and applications in fields like nanoelectronics, energy storage, and sensors.
- Discussion of future opportunities and challenges.
Main Results:
- TMTCs exhibit promising properties for various applications, including photodetectors, energy storage, catalysts, and sensors.
- Significant progress has been made in TMTC materials and device fabrication.
- The review highlights the potential of TMTCs in the field of 1D quantum materials.
Conclusions:
- TMTCs are a vital class of 1D quantum materials with diverse applications.
- Further research is needed to overcome challenges in both basic science and practical implementation.
- TMTCs offer exciting opportunities for future advancements in nanoelectronic devices and other fields.
More Related Videos
08:12Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
12.4K
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
10.7K
Related Concept Videos
02:58Properties of Transition Metals
26.5K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
26.5K
02:37Metallic Solids
18.5K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.5K
02:42Valence Bond Theory
8.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.9K
03:02Colors and Magnetism
12.0K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.0K
02:58Crystal Field Theory - Octahedral Complexes
27.0K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
27.0K
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
43.4K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
43.4K