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Related Experiment Video

Updated: May 11, 2026

Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

Sequential and site-specific on-surface synthesis on a bulk insulator.

Markus Kittelmann1, Markus Nimmrich, Robert Lindner

  • 1Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.

ACS Nano
|May 21, 2013
PubMed
Summary

Researchers developed a new two-step on-surface synthesis method for creating stable molecular structures on insulating surfaces. This advance enables precise control over complex molecular architectures for future electronics.

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Nanotechnology

Background:

  • Bottom-up construction using molecular building blocks offers precise control over material properties.
  • Covalently bonded structures are crucial for stable, high-performance molecular electronic devices.
  • On-surface synthesis is a key method for creating these structures, but typically involves simple, one-step processes.

Purpose of the Study:

  • To develop a sequential, multi-step on-surface synthesis strategy for creating complex molecular structures.
  • To overcome challenges of on-surface synthesis on nonconducting surfaces, such as low surface energy and lack of metal catalysts.
  • To demonstrate precise reaction control through molecular design for hierarchical assembly.

Main Methods:

  • Utilized a carefully selected precursor molecule designed for sequential linking reactions.

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Last Updated: May 11, 2026

Fabrication of Spatially Confined Complex Oxides
08:45

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Published on: July 1, 2013

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides
09:41

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

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Monolayer Contact Doping of Silicon Surfaces and Nanowires Using Organophosphorus Compounds

Published on: December 2, 2013

  • Performed a two-step covalent linking reaction directly on a bulk insulating substrate.
  • Engineered molecular structures to ensure firm anchoring and dictate reaction site and order.

    • Main Results:

    • Successfully demonstrated a two-step on-surface synthesis reaction on a bulk insulating surface.
    • Achieved firm anchoring of molecular structures to the insulating substrate.
    • Showcased unprecedented reaction control by encoding reaction sites and sequence within the precursor molecules.

    Conclusions:

    • The developed method enables the fabrication of complex, covalently bonded molecular structures on nonconducting surfaces.
    • This approach overcomes significant challenges associated with on-surface synthesis on insulating materials.
    • The findings pave the way for advanced molecular electronics and functional materials built from the bottom up.