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Updated: Sep 16, 2025

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Atomically precise noble metal nanoclusters for engineering self-assembled two-dimensional materials.

Venishaa Sethumadhavan1, Nonappa1

  • 1Faculty of Engineering and Natural Sciences, Tampere University, FI-33720, Tampere, Finland. nonappa@tuni.fi.

Dalton Transactions (Cambridge, England : 2003)
|July 11, 2025
PubMed
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Atomically precise noble metal nanoclusters can now self-assemble into ultrathin, two-dimensional materials. These advanced assemblies unlock novel optoelectronic properties for enhanced nanodevices and catalysis.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physical Chemistry

Background:

  • Two-dimensional (2D) nanomaterials from noble metals offer unique optoelectronic properties for nanodevices, catalysis, imaging, biomedicine, and sensing.
  • Atomically precise noble metal nanoclusters are key building blocks for self-assembled colloidal superstructures.

Purpose of the Study:

  • To discuss fabrication approaches for self-assembled gold and silver nanocluster-based 2D materials.
  • To provide insights into how these assemblies alter material properties and performance.
  • To highlight the emergence of new optoelectronic properties in nanocluster assemblies.

Main Methods:

  • Review of templated growth, air-water interfaces, and non-covalent interactions for nanocluster self-assembly.
  • Discussion of fabrication techniques for 2D films, nanosheets, colloidal crystals, and membranes.

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Last Updated: Sep 16, 2025

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  • Analysis of self-assembly principles governing nanocluster organization.

    • Main Results:

    • Successful fabrication of ultrathin, free-standing 2D materials from nanoclusters across length scales.
    • Demonstration of altered optoelectronic properties, mechanical performance, and catalytic activities in assemblies.
    • Enhanced sensing capabilities and device performance achieved through self-assembly.

    Conclusions:

    • Self-assembly of noble metal nanoclusters into 2D materials is now feasible, overcoming previous challenges.
    • These 2D nanocluster assemblies exhibit emergent properties while retaining intrinsic characteristics.
    • The findings pave the way for advanced applications in nanodevices, catalysis, and sensing.