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Updated: Jan 19, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
Optical absorption of single-layer hexagonal boron nitride in the ultraviolet
J C G Henriques1, G B Ventura2, C D M Fernandes1
1Department and Centre of Physics, and QuantaLab, University of Minho, Campus of Gualtar, 4710-057, Braga, Portugal.
Abstract:
In this paper we theoretically describe the absorption of hexagonal boron nitride (hBN) single layer. We develop the necessary formalism and present an efficient method for solving the Wannier equation for excitons. We give predictions for the absorption of hBN on quartz and on graphite. We compare our predictions with recently published results (Elias et al 2019 Nat. Commun. 10 2639) for a monolayer of hBN on graphite. The spontaneous radiative lifetime of excitons in hBN is also computed. We argue that the optical properties of hBN in the ultraviolet are very useful for the study of peptides and other biomolecules.
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