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arXiv · 1601.01785

Dimensionality effects on the luminescence properties of hBN

éonard Schué·Bruno Berini·Bernard Plaçais·François Ducastelle·Julien Barjon·Annick Loiseau·Andreas Betz
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Abstract

Cathodoluminescence (CL) experiments at low temperature have been undertaken on various bulk and exfoliated hexagonal boron nitride (hBN) samples. Different bulk crystals grown from different synthesis methods have been studied. All of them present the same so-called S series in the 5.6--6 eV range, proving its intrinsic character. Luminescence spectra of flakes containing 100 down to 6 layers have been recorded. Strong modifications in the same UV range are observed and discussed within the general framework of 2D exciton properties in lamellar crystals.

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éonard Schué, Bruno Berini, Bernard Plaçais, François Ducastelle, Julien Barjon, Annick Loiseau, Andreas Betz. 2016-01-08. Dimensionality effects on the luminescence properties of hBN. https://arxiv.org/abs/1601.01785

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