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

Ji-Chang Ren; Rui-Qin Zhang; Zejun Ding; Michel A. Van Hove

doi:10.1039/c4nr01940g

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

Ji-Chang Ren, Rui-Qin Zhang^*, Zejun Ding^*, Michel A. Van Hove^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

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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. This journal is

Original language	English
Pages (from-to)	8943-8948
Number of pages	6
Journal	Nanoscale
Volume	6
Issue number	15
Early online date	26 May 2014
DOIs	https://doi.org/10.1039/c4nr01940g
Publication status	Published - Aug 2014

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Materials Science(all)

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title = "Strong slip-induced anomalous enhancement and red-shifts in wide-range optical absorption of graphite under uniaxial pressure",

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. This journal is",

author = "Ji-Chang Ren and Rui-Qin Zhang and Zejun Ding and {Van Hove}, {Michel A.}",

note = " The work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region (HKSAR) [project no. CityU 103812] and the Centre for Functional Photonics (CFP). MAVH was supported by the HKBU Strategic Development Fund. We thank the High Performance Cluster Computing Centre, Hong Kong Baptist University, which receives funding from the Research Grants Council, University Grants Committee of the HKSAR and Hong Kong Baptist University. ",

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doi = "10.1039/c4nr01940g",

language = "English",

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AU - Ren, Ji-Chang

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AU - Ding, Zejun

AU - Van Hove, Michel A.

N1 - The work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region (HKSAR) [project no. CityU 103812] and the Centre for Functional Photonics (CFP). MAVH was supported by the HKBU Strategic Development Fund. We thank the High Performance Cluster Computing Centre, Hong Kong Baptist University, which receives funding from the Research Grants Council, University Grants Committee of the HKSAR and Hong Kong Baptist University.

PY - 2014/8

Y1 - 2014/8

N2 - 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. This journal is

AB - 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. This journal is

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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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