Related Experiment Video
Updated: Sep 24, 2025

09:25
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
Published on: July 5, 2019
9.6K
Morphotaxy of Layered van der Waals Materials
David Lam1, Dmitry Lebedev1, Mark C Hersam1,2,3
1Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.
ACS Nano
|May 6, 2022
Summary
Morphotaxy is a new synthesis method that uses nanoscale precursor shape to create ultrathin materials. This approach expands the family of low-dimensional materials for advanced applications.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Chemistry
Background:
- Layered van der Waals (vdW) materials are crucial for advanced technologies like computing and energy storage.
- Current methods focus on 2D limits, but vdW materials can host novel nanoscale matter.
- Exploring new synthesis routes is key to unlocking their full potential.
Purpose of the Study:
- Introduce and review morphotaxy, a novel synthesis paradigm.
- Demonstrate morphotaxy's ability to create diverse low-dimensional materials.
- Highlight the potential of morphotaxy for future materials discovery.
Main Methods:
- Morphotaxy utilizes the shape of nanoscale precursors to template material growth or conversion.
- This method allows synthesis of non-vdW materials (e.g., HfO2, InF3) in ultrathin forms.
- Morphotaxy enables the creation of atomically precise heterojunctions and Janus materials.
Main Results:
- Diverse non-vdW materials were synthesized in ultrathin forms by preserving precursor shape.
- Morphotaxy successfully templated the synthesis of novel materials and structures.
- Atomically precise heterojunctions and Janus materials were realized.
Conclusions:
- Morphotaxy significantly expands the family of accessible low-dimensional materials.
- This synthesis approach offers vast possibilities for fundamental research and technological applications.
- Morphotaxy provides a versatile platform for designing and creating advanced nanoscale materials.
Related Concept Videos
Van der Waals Equation
4.7K
The ideal gas law is an approximation that works well at high temperatures and low pressures. The van der Waals equation of state (named after the Dutch physicist Johannes van der Waals, 1837−1923) improves it by considering two factors.
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...
4.7K
Van der Waals Interactions
66.9K
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.
66.9K
Metallic Solids
19.3K
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....
19.3K
VSEPR Theory and the Basic Shapes
71.4K
Overview of VSEPR Theory
71.4K
Ionic Crystal Structures
15.2K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
15.2K
Structures of Solids
15.4K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
15.4K

