Interband absorption in single layer hexagonal boron nitride

Autor:	Konar, Aniruddha, Jana, Raj, Fang, Tian, Li, Guowang, O'Brien, William, Jena, Debdeep
Rok vydání:	2011
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Monolayer of hexagonal boron nitride (h-BN), commonly known as "white graphene" is a promising wide bandgap semiconducting material for deep-ultaviolet optoelectronic devices. In this report, the light absorption of a single layer hexagonal boron nitride is calculated using a tight-binding Hamiltonian. The absorption is found to be monotonically decreasing function of photon energy compared to graphene where absorption coefficient is independent of photon energy and characterized by the effective fine-structure constant. Comment: 3 pages, 2 Figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1109.5145 Zobrazit plný text záznamu View this record from Arxiv