The Fine-Structure Constant as a Ruler for the Band-Edge Light Absorption Strength of Bulk and Quantum-Confined Semiconductors.
dielectric screening
fine-structure constant
light absorption
optical transitions
quantum coupling
Journal
Nano letters
ISSN: 1530-6992
Titre abrégé: Nano Lett
Pays: United States
ID NLM: 101088070
Informations de publication
Date de publication:
24 Nov 2021
24 Nov 2021
Historique:
pubmed:
16
11
2021
medline:
16
11
2021
entrez:
15
11
2021
Statut:
ppublish
Résumé
Low-dimensional semiconductors have found numerous applications in optoelectronics. However, a quantitative comparison of the absorption strength of low-dimensional versus bulk semiconductors has remained elusive. Here, we report generality in the band-edge light absorptance of semiconductors, independent of their dimensions. First, we provide atomistic tight-binding calculations that show that the absorptance of semiconductor quantum wells equals
Identifiants
pubmed: 34780185
doi: 10.1021/acs.nanolett.1c02682
pmc: PMC8631736
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
9426-9432Références
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