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Related Concept Videos

Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The semiconductor's...

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Related Experiment Video

Updated: May 13, 2026

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects
09:15

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Published on: January 4, 2016

Surface-state engineering for interconnects on H-passivated Si(100).

Mikaël Kepenekian1, Roberto Robles, Christian Joachim

  • 1Centro de Investigación en Nanociencia y Nanotecnología CIN2 (CSIC-ICN), Campus de la UAB, E-08193 Bellaterra, Spain. mikael.kepenekian@cin2.es

Nano Letters
|February 26, 2013
PubMed
Summary

Engineered silicon interconnects show promise for nanocircuits. Zigzag dangling-bond wires achieve atomic confinement and conductivity comparable to metallic wires, overcoming previous limitations.

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Last Updated: May 13, 2026

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects
09:15

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Published on: January 4, 2016

Developing High Performance GaP/Si Heterojunction Solar Cells
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Published on: November 16, 2018

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Area of Science:

  • Surface science
  • Condensed matter physics
  • Materials science

Background:

  • Atomic-size interconnects on silicon surfaces are crucial for nanoscale electronics.
  • Simple silicon interconnects suffer from poor conductivity due to electronic instabilities.

Purpose of the Study:

  • To explore surface-state engineering strategies for improving conductivity in atomic-size silicon interconnects.
  • To investigate methods for reducing electronic instabilities in silicon nanowires.

Main Methods:

  • Utilized density functional theory (DFT) to evaluate engineered silicon interconnects.
  • Investigated two strategies: spacing dangling bonds with hydrogen atoms and increasing lateral wire dimensions.

Main Results:

  • Discovered that zigzag dangling-bond wires exhibit atomically confined conduction properties.
  • Achieved conductivity comparable to free-standing metallic monatomic wires.
  • Identified strategies to mitigate one-dimensional instabilities in silicon interconnects.

Conclusions:

  • Surface-state engineering can overcome conductivity limitations in silicon interconnects.
  • Zigzag dangling-bond structures offer a pathway to high-performance atomic-scale wires.
  • These findings pave the way for band-engineering strategies in electronically driven nanocircuits.