Refractive index database

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Optical constants of SnSe (Tin selenide)
Guo et al. 2022: n,k(α) 0.193–1.69 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants


nα, kα; room temperature.


Z. Guo, H. Gu, Y. Yu, Z. Wei, S. Liu. Broadband and incident-angle-modulation near-infrared polarizers based on optically anisotropic SnSe, Nanomaterials, 13, 134 (2022) (Numerical data kindly provided by Zhengfeng Guo)


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Tin selenide, SnSe

Tin selenide (SnSe) is a layered semiconducting material with an orthorhombic crystal structure. This material has attracted significant attention due to its remarkable thermoelectric properties, particularly at low temperatures. SnSe has one of the highest thermoelectric efficiencies, making it a promising candidate for thermoelectric energy conversion, which can transform waste heat into electricity. The intrinsic p-type conductivity of SnSe can also be of interest for optoelectronic applications. Similar to other layered materials, SnSe can be exfoliated into nanosheets, opening avenues for research in the realm of two-dimensional materials. The combination of its unique properties makes SnSe a material of considerable research interest in both the energy and electronics sectors.

Other name

  • Tin(II) selenide
  • Stannous selenide

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