CdSe (Cadmium selenide)

Semiconductors and photonic platforms anisotropic

7 datasets, together covering 0.2066–22 µm. Default: Lisitsa et al. 1969: n(o) 1.01–22.0 µm.

Compare datasets

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

Datasets

Experimental data

Models and simulations

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# CdSe (Cadmium selenide): Lisitsa et al. 1969: n(o) 1.01–22.0 µm
cdse = ls.fetch_refractiveindex("main", "CdSe", "Lisitsa-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cdse.range_nm)  # (1010, 22000) nm
eps = cdse.eps([4710])  # 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_823befaf78ab/lightsmith"
cdse = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(cdse.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (cdse/lisitsa-1969-o).

# ... load cdse as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=cdse)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1010, stop_nm=22000, 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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_823befaf78ab/lightsmith?model=drude_lorentz"
cdse_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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 CdSe (Cadmium selenide)

Cadmium selenide (CdSe) is an inorganic compound that commonly crystallizes in either the hexagonal wurtzite or cubic zincblende structure. This semiconductor material is particularly known for its strong quantum confinement effects, which make it a key ingredient in quantum dot technologies. With a bandgap of approximately 1.7 eV, CdSe exhibits strong optical absorption and photoluminescence in the visible range, making it an attractive material for light-emitting diodes, solar cells, and laser applications. Its optoelectronic properties can be finely tuned by altering the size and shape of CdSe nanoparticles, providing a versatile platform for a range of devices. While CdSe's properties make it a compelling choice for various applications, the use of cadmium, a toxic heavy metal, raises environmental and safety concerns that must be carefully managed. CdSe is often synthesized through colloidal methods, chemical vapor deposition, or molecular beam epitaxy, each offering different advantages in terms of crystal quality and control over material properties. The material remains a focus of ongoing research aimed at optimizing its favorable characteristics while addressing its environmental impact.

Other names: Cadmium selenide

Cadmium selenide - Wikipedia

API: /v1/materials/mat_76e5b73f54c8 · slug cdse