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Issue 15, 2014
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Strong slip-induced anomalous enhancement and red-shifts in wide-range optical absorption of graphite under uniaxial pressure

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Abstract

Natural graphite shows little optical response. Based on first-principles calculations, we demonstrate, for the first time, that an in-plane pressure-induced slip between atomic layers causes a strong anomalous enhancement and large red-shifts in the infrared and far infrared optical absorption by graphite. Specifically, a slip along the armchair direction induces an absorption feature that redshifts from ∼3 eV to ∼0.15 eV, while its intensity increases by an order of magnitude, due to an electron density delocalization effect with slip. Our results provide a way to detect and measure the magnitude of the in-plane slip of graphite under compression and also open up potential applications in electronics and photonics.

Graphical abstract: Strong slip-induced anomalous enhancement and red-shifts in wide-range optical absorption of graphite under uniaxial pressure

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Publication details

The article was received on 10 Apr 2014, accepted on 22 May 2014 and first published on 26 May 2014


Article type: Paper
DOI: 10.1039/C4NR01940G
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2014,6, 8943-8948
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    Strong slip-induced anomalous enhancement and red-shifts in wide-range optical absorption of graphite under uniaxial pressure

    J. Ren, R. Zhang, Z. Ding and M. A. Van Hove, Nanoscale, 2014, 6, 8943
    DOI: 10.1039/C4NR01940G

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