In₂Se₃ (Indium selenide)

Semiconductors and photonic platforms

1 dataset, together covering 0.36–1 µm. Default: Zotev et al. 2023: n,k 0.36–1.0 µm.

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Datasets

Multilayer flakes

Zotev et al. 2023: n,k 0.36–1.0 µm n,k 0.36–1 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# In2Se3 (Indium selenide): Zotev et al. 2023: n,k 0.36–1.0 µm
in2se3 = ls.fetch_refractiveindex("main", "In2Se3", "Zotev", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(in2se3.range_nm)  # (360, 1000) nm
eps = in2se3.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_57d81f45340d/lightsmith"
in2se3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(in2se3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (in2se3/zotev-2023).

# ... load in2se3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=in2se3)],
    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 In2Se3 (Indium selenide)

Indium Selenide (In₂Se₃) is a compound semiconductor material with a unique layered crystal structure, belonging to the group of III-VI semiconductors. It is known for its photoelectric properties and phase-change characteristics, making it a material of interest in a variety of applications ranging from photovoltaics to phase-change memory devices. In₂Se₃ exhibits polymorphism, existing in different structural phases (α, β, γ), each having distinct electrical and optical properties. This makes it versatile for use in thin-film solar cells, where its direct bandgap can be tuned according to its phase and stoichiometry. The material is also studied for its potential use in optoelectronic devices, such as photodetectors and infrared sensors, due to its strong absorption in the visible to near-infrared spectrum. Understanding the optical properties, including the refractive index of In₂Se₃, is essential for the design and optimization of these devices. The refractive index data across different wavelengths can provide critical insights for tailoring the material's properties for specific applications.

Other names: Indium selenide, Indium(III) selenide, Diindium triselenide

API: /v1/materials/mat_abaf3709093c · slug in2se3