This study demonstrates the powerful capabilities of the Agilent Cary 5000 UV-Vis-NIR spectrophotometer, paired with Cary WinUV software, for precise band gap analysis of metal oxides. By integrating the Praying Mantis diffuse reflectance accessory, researchers can ensure consistent sample positioning and accurate measurements.
This methodology provides a robust tool for researchers in photocatalysis, solar energy conversion, and beyond, enabling accurate electronic structure characterization of advanced materials.
Using this analytical solution:
- The band gaps for materials like GeO₂, TiO₂, and ZnO were found to align with established literature values.
- The Praying Mantis small and large sample cup measurements produced consistent results, demonstrating both accuracy and sample efficiency.
- The calculation capabilities of Cary WinUV software enable direct identification of band gap values from the reflectance spectrum.
Download the application note: Determination of Band Gap in Metal Oxides Using UV-Vis Spectroscopy (5994-7854EN)
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