AlSb (Aluminium antimonide)

Semiconductors and photonic platforms

3 datasets, together covering 0.2066–12.4 µm. Default: Zollner et al. 1989: n,k 0.214–0.886 µm.

Compare datasets

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

Datasets

Experimental data

Zollner et al. 1989: n,k 0.214–0.886 µm n,k 0.2138–0.8856 µm default

Models and simulations

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# AlSb (Aluminium antimonide): Zollner et al. 1989: n,k 0.214–0.886 µm
alsb = ls.fetch_refractiveindex("main", "AlSb", "Zollner", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(alsb.range_nm)  # (213.8, 885.6) nm
eps = alsb.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_c263b0c6a554/lightsmith"
alsb = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(alsb.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (alsb/zollner-1989).

# ... load alsb as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=alsb)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=885, 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 AlSb (Aluminium antimonide)

AlSb, or aluminum antimonide, is a III-V semiconductor compound with a zincblende crystal structure. It has a direct bandgap of approximately 1.6 eV at room temperature and is known for its high electron mobility, which makes it useful in high-frequency and high-speed electronic applications. AlSb is often utilized in heterostructures with other III-V materials, such as GaSb and InAs, to create devices like high-electron-mobility transistors (HEMTs) and infrared photodetectors. The material has a relatively low effective mass of electrons, which contributes to its high electron mobility and thereby makes it desirable for applications requiring rapid electron transport. AlSb is also of interest for thermophotovoltaic applications, given its narrow bandgap energy, which allows for efficient absorption of infrared radiation. However, the material poses challenges in terms of crystal growth and fabrication due to its sensitivity to defects and impurities. Additionally, antimonide-based materials like AlSb require stringent safety protocols due to the toxicity of antimony. Despite these challenges, AlSb continues to be a material of significant research interest, offering a combination of electrical and optical properties that are attractive for next-generation electronic and optoelectronic devices.

Other names: Aluminium antimonide

Aluminium antimonide - Wikipedia

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