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Related Experiment Video

Updated: Jun 1, 2026

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

One-step Ge/Si epitaxial growth.

Hung-Chi Wu1, Bi-Hsuan Lin, Huang-Chin Chen

  • 1Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, Republic of China.

ACS Applied Materials & Interfaces
|June 10, 2011
PubMed
Summary

A new method fabricates low-cost germanium (Ge) films on silicon wafers using chemical vapor deposition. This breakthrough enables the integration of advanced Ge/Si devices for future electronic applications.

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Area of Science:

  • Materials Science
  • Semiconductor Physics
  • Chemical Engineering

Background:

  • Germanium (Ge) integration on silicon (Si) is crucial for advanced semiconductor devices.
  • Existing methods for Ge epitaxy on Si often involve complex, high-cost processes.
  • Developing cost-effective and scalable Ge/Si fabrication techniques is a key research area.

Purpose of the Study:

  • To demonstrate a facile, one-step chemical vapor deposition (CVD) method for fabricating epitaxial germanium films on silicon wafers.
  • To develop a low-cost virtual germanium template using a graded Ge(x)Si(1-x) buffer layer.
  • To confirm the epitaxial relationship between the grown Ge film and the Si substrate.

Main Methods:

  • Utilized a hazardous-free germanium dioxide (GeO2) powder precursor.

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Last Updated: Jun 1, 2026

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

Epitaxial Growth of Perovskite Strontium Titanate on Germanium via Atomic Layer Deposition
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  • Employed a chemical vapor deposition (CVD) process under a hydrogen atmosphere.
  • Grew Ge films on Si substrates with a Ge(x)Si(1-x) graded buffer layer at low temperatures, avoiding ultra-high vacuum conditions.

    • Main Results:

    • Successfully fabricated epitaxial Ge films on Si substrates.
    • Confirmed the in-plane epitaxial relationship between Ge and Si using X-ray diffraction (XRD) analysis.
    • Demonstrated a low-cost, one-step fabrication process for virtual Ge templates.

    Conclusions:

    • The developed CVD method provides a feasible and cost-effective route for producing epitaxial Ge films on Si.
    • This technique enables the integration of various functional devices onto Ge/Si substrates.
    • The findings pave the way for advanced Ge-based optoelectronic and electronic devices on silicon platforms.