diffuse reflectance spectroscopy and Tauc plot
GTUB3 single crystals / crystal powder · Single Crystal
Perkin Elmer Lambda 950 UV-Vis-NIR diffuse reflectance spectrum; Kubelka-Munk/Tauc treatment; indirect allowed transition factor n=2 best matched PL.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| DRS/Tauc optical bandgapMarked as a best value within this paper | 1.45 eV | — | — | Text Exact Reported | 4 · 2.3 Photoluminescence and Bandgap of GTUB3 · Figure 3B |
| bandgap transition assignment | indirect band gap | — | — | Text Qualitative | S8 · 5. Band Gap Measurement |