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Related Concept Videos

Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Atomic Force Microscopy01:08

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Related Experiment Video

Updated: Jun 15, 2026

Scanning-probe Single-electron Capacitance Spectroscopy
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Published on: July 30, 2013

Scanning probe microscope based Deep-Level Spectroscopy of semiconductor films.

S Lányi1, V Nádazdy

  • 1Institute of Physics, Slovakian Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia. lanyi@savba.sk

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|March 6, 2010
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Summary

Isothermal Charge-Transient Spectroscopy (IQTS) provides detailed analysis of semiconductor defects. This method offers high resolution for defect characterization, enabling quantitative concentration determination.

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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
11:14

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope

Published on: May 28, 2016

Area of Science:

  • Semiconductor Physics
  • Materials Science
  • Defect Engineering

Background:

  • Deep-level spectroscopy is crucial for understanding semiconductor properties.
  • Electrically active defects significantly impact device performance.
  • Traditional methods often struggle to characterize these defects.

Purpose of the Study:

  • To present Isothermal Charge-Transient Spectroscopy (IQTS) as a powerful technique for defect analysis in semiconductors.
  • To demonstrate the capability of IQTS for quantitative defect concentration determination.
  • To highlight the temperature-dependent analysis for defect parameter extraction.

Main Methods:

  • Utilizing a specialized microscope for Isothermal Charge-Transient Spectroscopy (IQTS).
  • Sampling charge transients over a wide time range (2 µs to tens of ms).
  • Employing a heated stage for temperature-dependent measurements (room temperature to ~200°C).

Main Results:

  • IQTS successfully characterizes electrically active defects in semiconductors.
  • Activation energy and capture cross-section are determined from temperature-dependent peak shifts.
  • Quantitative defect concentration analysis is achievable with careful simulation.

Conclusions:

  • IQTS is an effective method for detailed semiconductor defect analysis.
  • The technique allows for precise extraction of defect parameters.
  • Accurate quantitative defect concentration measurement is feasible, though complex.