Ultraviolet-Visible Spectroscopy
Convert UV-Vis spectroscopy files into graphs, then review reflectance, absorption coefficient, extinction coefficient, refractive index, Bandgap, and Urbach Energy workflows in one workspace.
.txt, .dat, .asc, .tsv, .csv
Review measured reflectance spectra before using R in optical-constant calculations.
Reflectance review uses measured R channels when present; it does not infer missing reflectance curves from unrelated columns.
Use absorbance, transmittance, reflectance, and thickness settings to calculate alpha candidates and compare absorption strength.
Alpha candidates depend on the selected source formula, thickness setting, and whether absorbance, transmittance, or reflectance channels are available.
Combine alpha and wavelength values to calculate dimensionless k and review optical attenuation trends.
Extinction coefficient k is derived from alpha and wavelength, so review alpha provenance before treating k as a final optical constant.
Combine measured reflectance and k candidates to approximate n where both inputs are available.
Refractive-index candidates require measured reflectance and k inputs; missing or inferred channels should be reviewed before reporting.
Build a Tauc plot from recognized optical signal channels and review Eg, fit range, fit points, and fit quality.
Bandgap values depend on transition model, fit-window selection, optical source channel, and fit quality evidence.
Review the band-edge absorption tail in semilog form to estimate Urbach-energy candidates and disorder trends.
Urbach-energy candidates are sensitive to the selected absorption-tail range and should be reviewed with R2 and fit-point evidence.
Load UV-Vis wavelength and signal data and convert it into a graph for quick spectrum review.
Preserve recognized optical channels such as absorbance, transmittance, reflectance, or alpha-style values when they are available in the source file.
Review measured reflectance, absorption coefficient, extinction coefficient k, and refractive index n when the source file and settings provide the required inputs.
Build a Tauc plot, inspect the selected fit range, and review Eg, R2, fit-point count, and fit-quality evidence.
Inspect the semilog absorption-tail region and review Urbach-energy candidates with fit evidence.
The measurement file is converted into a wavelength versus signal graph. From there, the workspace helps you review reflectance, absorption coefficient, extinction coefficient, refractive index, Bandgap, Urbach Energy, and source-data evidence.
Yes. Where the required measured channels and settings exist, UV-Vis can review R, alpha, k, n, Eg, fit range, fit points, R2, fit quality, and Urbach-energy evidence.
Files uploaded to this analysis tool are processed in the current browser session for graph conversion and analysis. The tool does not send files outside or save them without user permission.