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Optical constants of Nb2O5 (Niobium pentoxide)
Franta et al. 2024: n,k 0.120–399 µm

Wavelength: µm
 (0.120051–399.362)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Conditions

substrate: c-Si

Comments

Nb2O5; Deposited by magnetron sputtering; Heterogenous data processing combining ellipsometric and spectrophotometric measurements of five samples with thicknesses between 20 and 250 nm; Room temperature.

References

D. Franta, B. Hroncová, J. Dvořák, J. Vohánka, P Franta, I. Ohlídal, V. Pekař, D. Škoda. Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model. Opt. Mat., 157, 116133 (2024) (Numerical data kindly provided by Jan Dvořák)

Data

[CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

About Niobium pentoxide

Niobium pentoxide (Nb2O5) is a pale yellow compound that is commonly used in the manufacture of certain optical glasses, where it imparts a high refractive index. In addition to its use in specialty glasses, Nb2O5 has garnered attention in the photonics industry due to its nonlinear optical properties, making it suitable for devices like waveguides and modulators. The material also finds application in the field of electronics as a dielectric layer in capacitors and has potential in the development of electrochromic devices. Its high dielectric constant further positions it as a candidate for thin film capacitors and transistors.

Other names and variations:
  • Nb2O5
  • Niobium(V) oxide
  • Niobium pentaoxide
  • Dininiobium pentoxide
  • Diniobium pentaoxide
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