Bi₂Se₃ (Bismuth selenide)

Semiconductors and photonic platforms

6 datasets, together covering 0.193–3.3 µm. Default: Ermolaev et al. 2023: CVD film; n,k 0.290–3.30 µm.

Compare datasets

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

Datasets

Thin film

Ermolaev et al. 2023: CVD film; n,k 0.290–3.30 µm n,k 0.29–3.3 µm default

2D structures

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Bi2Se3 (Bismuth selenide): Ermolaev et al. 2023: CVD film; n,k 0.290–3.30 µm
bi2se3 = ls.fetch_refractiveindex("main", "Bi2Se3", "Ermolaev", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(bi2se3.range_nm)  # (290, 3300) nm
eps = bi2se3.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_76dea7435e0f/lightsmith"
bi2se3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(bi2se3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (bi2se3/ermolaev-2023).

# ... load bi2se3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=bi2se3)],
    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 Bi2Se3 (Bismuth selenide)

Bi₂Se₃, or bismuth selenide, is a layered compound with a rhombohedral crystal structure that has gained significant attention for its topological insulator properties. This material exhibits unique electronic states on its surface, while behaving as an insulator in its bulk. In the realm of optics, Bi₂Se₃ has shown promise for applications in photodetectors, modulators, and even as a platform for exploring exotic quantum phenomena. It has a high refractive index and exhibits strong optical anisotropy due to its layered crystal structure. Bi₂Se₃ also has a narrow bandgap and shows strong photoresponse across a broad spectrum, making it suitable for infrared applications. While the material can be synthesized through methods such as Bridgman-Stockbarger and chemical vapor deposition (CVD), it is somewhat sensitive to environmental conditions and may require protective coatings to maintain its properties. Overall, Bi₂Se₃ is a fascinating material that has captivated researchers for its intriguing electronic and optical characteristics, holding promise for future applications in optoelectronics and quantum computing.

Other names: Bismuth selenide, Bismuth(III) selenide, Dibismuth triselenide, Selenoxobismuth, Selanylidenebismuth

API: /v1/materials/mat_d5c76521379e · slug bi2se3