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Van der Waals Interactions

Van der Waals Interactions

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.

Van der Waals Equation

Van der Waals Equation

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...

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Related Experiment Video

Updated: Jul 16, 2025

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

Two-Dimensional Van Der Waals Thin Film and Device.

Liping Liao¹, Evgeniya Kovalska², Jakub Regner¹

¹Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, Prague, 166 28, Czech Republic.

Small (Weinheim an Der Bergstrasse, Germany)

|September 21, 2023

Summary

Two-dimensional (2D) materials offer stable, solution-processable alternatives for thin-film electronics. This review explores their potential in advancing flexible and wearable devices, overcoming limitations of organic semiconductors.

Keywords:

2D nanomaterials devices heterostructures optoelectronic van der Waals thin films

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Last Updated: Jul 16, 2025

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

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A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

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Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

Area of Science:

Materials Science
Electronics Engineering
Nanotechnology

Background:

Organic semiconductors face stability and mobility issues in ambient conditions for thin-film electronics.
Inorganic nanomaterials offer superior stability and intrinsic properties for solution processing.
Two-dimensional (2D) materials, particularly nanosheets, show promise for advanced electronics.

Purpose of the Study:

To review the advancements in thin-film electronics utilizing van der Waals thin films derived from 2D materials.
To highlight the advantages of inorganic nanomaterials for solution-processed electronics.
To explore challenges and opportunities in using 2D materials for next-generation devices.

Main Methods:

Literature review focusing on van der Waals thin films and 2D materials.
Analysis of solution-processing techniques for inorganic nanomaterials.
Evaluation of material properties like stability and carrier mobility.

Main Results:

2D materials enable stable, solution-processable thin films with potential for large-area applications.
Inorganic nanomaterials overcome the stability and mobility limitations of organic semiconductors.
Precise control over layer thickness and lattice orientation remains a key challenge.

Conclusions:

Solution-based processing of 2D materials is crucial for scalable electronic and optoelectronic applications.
2D materials represent a significant advancement for flexible and wearable thin-film electronics.
Further research is needed to address integration challenges for widespread adoption.