[Analysis Case] Evaluation of Band Structure by X-ray Absorption and Emission Spectroscopy
Detailed information about the valence band, conduction band, and gap states of the material can be obtained.
Understanding the band structure, including valence bands, conduction bands, and gap states, is an extremely important evaluation criterion for controlling various properties of materials. However, there are limited analytical methods available for direct and detailed assessment of these aspects. Simultaneous measurements of X-ray absorption spectroscopy (XAS) and X-ray emission spectroscopy (XES) using synchrotron radiation allow for a comprehensive understanding of the band structure, as well as detailed information regarding the attribution of the elements and orbitals that compose it. This document presents the XAS and XES spectra of GaN substrates as an example of measurement.
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Analysis of lighting, oxide semiconductors, LSI, and memory.
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MST is a foundation that provides contract analysis services. We possess various analytical instruments such as TEM, SIMS, and XRD to meet your analysis needs. Our knowledgeable sales representatives will propose appropriate analysis plans. We are also available for consultations at your company, of course. We have obtained ISO 9001 and ISO 27001 certifications. Please feel free to consult us for product development, identifying causes of defects, and patent investigations! MST will guide you to solutions for your "troubles"!