Optical constants of WSe2 (Tungsten diselenide)
Ushkov et al. 2025: n(e) 0.36–1.7 µm
Complex refractive index (n+ik)
Derived optical constants
Conditions
direcrion: e
Comments
WSe2 nanoparticles with diameters from 5 to 150 nm synthesized by femtosecond laser ablation.
References
A. Ushkov, D. Dyubo, N. Belozerova, I. Kazantsev, D. Yakubovsky, A. Syuy, G. Tikhonowski, D. Tselikov, I. Martynov, G. Ermolaev, D. Grudinin, A. Melentev, A. Popov, A. Chernov, A. Bolshakov, A. Vyshnevyy, A. Arsenin, A. Kabashin, G. Tselikov, V. Volkov. Tungsten diselenide nanoparticles produced via femtosecond ablation for SERS and theranostics applications. Nanomaterials, 15(1), 4 (2025) (Numerical data kindly provided by Georgy Ermolaev)
Data
Additional information
About Tungsten diselenide
Tungsten diselenide (WSe2) is a member of the transition metal dichalcogenide (TMD) family, known for its distinctive layered structure. The individual layers are bound by weak van der Waals interactions, allowing for exfoliation into atomically thin sheets. In its monolayer form, WSe2 possesses a direct bandgap, distinguishing it from its bulk indirect bandgap property. This unique characteristic renders WSe2 as a prime candidate for optoelectronic applications, including photodetectors, light-emitting diodes (LEDs), and even photovoltaic devices. It has also been explored in the fabrication of field-effect transistors and quantum devices. The intriguing electronic and optical attributes of WSe2, especially when interfaced with other 2D materials, have garnered significant attention in advanced materials research.
Other names and variations:- WSe2