Optical constants of TaSe2 (Tantalum diselenide)
Munkhbat et al. 2022: multilayer flakes; n,k(e) 0.30–1.69 µm
Wavelength:
µm
(3.000000e-01–1.690000e+00)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Conditions & Spec sheet
n_is_absolute: true wavelength_is_vacuum: true
Comments
Multilayer flakes. Out-of-plane (extraordinary ray, e). Room temperature.
References
B. Munkhbat, P. Wrobel, T. J. Antosiewicz, T. O. Shegai. Optical constants of several multilayer transition metal dichalcogenides spectroscopic ellipsometry in the 300–1700 nm range: High index, anisotropy, and hyperbolicity, ACS Photonics 9, 2398–2407 (2022) (Numerical data kindly provided by Tomasz Antosiewicz)
Data
INFO
Tantalum diselenide, TaSe2
Tantalum diselenide (TaSe2) is a member of the transition metal dichalcogenides (TMDs) family, possessing unique electrical and optical characteristics. Like its sulfide counterpart, TaSe2 undergoes charge density wave (CDW) transitions, leading to complex electronic behaviors such as superconductivity in certain conditions. The material's layered structure allows for exfoliation into thin sheets, paving the way for potential applications in nanoelectronics and optoelectronics. Furthermore, TaSe2's intriguing properties, including its responses to external stimuli like pressure and field, make it a popular candidate for studying exotic quantum states and phase transitions.Other names
- Tantalum(IV) selenide
- Tantalum(IV) diselenide
- Tantalum selenide