CdS (Cadmium sulfide)

Semiconductors and photonic platforms anisotropic

5 datasets, together covering 0.2175–1.498 µm. Default: Bieniewski and Czyzak 1963: n(o) 0.51–1.4 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

# CdS (Cadmium sulfide): Bieniewski and Czyzak 1963: n(o) 0.51–1.4 µm
cds = ls.fetch_refractiveindex("main", "CdS", "Bieniewski-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cds.range_nm)  # (510, 1400) nm
eps = cds.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_06b647b43fe5/lightsmith"
cds = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(cds.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (cds/bieniewski-czyzak-1963-o).

# ... load cds as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=cds)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=510, 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 CdS (Cadmium sulfide)

Cadmium sulfide (CdS) is an inorganic compound with a hexagonal wurtzite structure or a cubic zincblende structure, depending on the conditions under which it is synthesized. This material has been widely studied for its semiconducting and optoelectronic properties, specifically its use in photodetectors, solar cells, and light-emitting diodes. With a direct bandgap that ranges from approximately 2.4 to 2.5 eV, CdS is highly transparent in the visible range and can absorb ultraviolet light, making it suitable for various optical applications. Its high electron mobility and good thermal stability further extend its utility in electronic devices. However, cadmium is a toxic element, which places constraints on the material's handling and environmental impact. Methods for synthesizing CdS include chemical vapor deposition, sputtering, and various solution-based approaches like sol-gel and hydrothermal methods. Despite the toxicity challenges, CdS remains a pivotal material in the realm of semiconductors and optoelectronics, and it continues to be a subject of extensive research to mitigate its environmental impact while leveraging its advantageous properties. Minerals: Greenockite, Hawleyite.

Other names: Cadmium sulfide, Cadmium(II) sulfide, Cadmium sulphide, Cadmium(II) sulphide, Greenockite, Hawleyite

API: /v1/materials/mat_c741741f59ad · slug cds