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Automated system for surface photovoltage spectroscopy.

Y González1, A Abelenda1, O de Melo1

  • 1Facultad de Física, Universidad de La Habana, San Lázaro y L, Vedado, 10400 La Habana, Cuba.

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|January 30, 2021
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Summary
This summary is machine-generated.

Researchers developed an affordable surface photovoltage spectroscopy (SPS) setup using Arduino and LabVIEW for semiconductor characterization. This cost-effective system effectively analyzes materials like MoO3 thin films and laser structures.

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Area of Science:

  • Materials Science
  • Spectroscopy
  • Semiconductor Physics

Background:

  • Surface Photovoltage Spectroscopy (SPS) is crucial for characterizing semiconductor materials and devices.
  • Existing setups can be complex and expensive, limiting accessibility.

Purpose of the Study:

  • To develop a cost-effective, open-source experimental setup for SPS measurements.
  • To validate the setup's performance using semiconductor materials and devices.

Main Methods:

  • Utilized an Arduino microcontroller for controlling a monochromator and electronic components.
  • Integrated the setup with a computer using LabVIEW software for system control and data acquisition.
  • Designed and implemented a compact, easily manufacturable sample holder.

Main Results:

  • Successfully developed and validated a functional SPS experimental setup.
  • Demonstrated the setup's effectiveness in characterizing MoO3 thin films.
  • Applied the setup to analyze semiconductor laser structures, confirming its utility.

Conclusions:

  • The developed open-source SPS setup offers an accessible and effective solution for semiconductor material and device characterization.
  • This approach lowers the barrier to entry for advanced spectroscopic analysis.