SnSe (Tin selenide)

Semiconductors and photonic platforms anisotropic

3 datasets, together covering 0.193–1.69 µm. Default: Guo et al. 2022: n,k(α) 0.193–1.69 µm.

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Tick datasets in the list to add them to the plot (up to 12).

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# SnSe (Tin selenide): Guo et al. 2022: n,k(α) 0.193–1.69 µm
snse = ls.fetch_refractiveindex("main", "SnSe", "Guo-α", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(snse.range_nm)  # (193, 1690) nm
eps = snse.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_4c9ad4083188/lightsmith"
snse = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(snse.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (snse/guo-2022).

# ... load snse as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=snse)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About SnSe (Tin selenide)

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 names: Tin selenide, Tin(II) selenide, Stannous selenide

API: /v1/materials/mat_87bf1c00b8b9 · slug snse