Automated system for surface photovoltage spectroscopy

This paper details the development of a lab-made experimental setup for surface photovoltage spectroscopy (SPS) measurements using an open-source and Arduino® microcontroller to control a monochromator and some off-the-shelf electronic components. The experimental setup is interfaced to a computer,...

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Bibliographic Details
Published in:Review of scientific instruments 2021-01, Vol.92 (1), p.013104-013104
Main Authors: González, Y., Abelenda, A., de Melo, O., Calvo-Mola, C., García-Pelayo, L., García, B. J., Sánchez, M.
Format: Article
Language:English
Subjects:
Electronic components
Microcontrollers
Molybdenum oxides
Molybdenum trioxide
Sample holders
Scientific apparatus & instruments
Semiconductor lasers
Semiconductor materials
Source code
Spectrum analysis
Thin films
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Summary:This paper details the development of a lab-made experimental setup for surface photovoltage spectroscopy (SPS) measurements using an open-source and Arduino® microcontroller to control a monochromator and some off-the-shelf electronic components. The experimental setup is interfaced to a computer, where LabVIEW® based software manages system control and data acquisition. We also report the design of a compact sample holder, simple and easy to manufacture and handle. Results of the application of SPS to the characterization of MoO3 thin films and semiconductor laser structures are presented to validate the performance of the setup, highlighting the effectiveness of SPS for the characterization of semiconductor materials and devices.
ISSN:0034-6748
1089-7623
DOI:10.1063/5.0035179