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arXiv · 1712.02563

The electroluminescent properties based on bias polarity of the epitaxial graphene/aluminium SiC junction

M. Rejhon·J. Franc·V. Dědič·P. Hlídek·J. Kunc
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Abstract

We investigated the electroluminescent properties of the epitaxial graphene/SiC junction. The temperature and current dependence of electroluminescence from the epitaxial graphene/SiC is measured within a temperature range of 50-300 K. The result of electroluminescence at 300~K is compared with the electroluminescent spectra from aluminium/SiC junction. The difference between the spectra is explained by the different band bending, which could lead to the tunable LED due to the semi-metal character of the graphene. We observed the electroluminescence at both bias polarities and we described the blue shift in the spectra by Franz-Keldysh effect.

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M. Rejhon, J. Franc, V. Dědič, P. Hlídek, J. Kunc. 2017-12-07. The electroluminescent properties based on bias polarity of the epitaxial graphene/aluminium SiC junction. https://doi.org/10.1088/1361-6463/aac7d2

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