Vasu, K and Matte, HSSR and Shirodkar, Sharmila N and Jayaram, V and Reddy, KPJ and Waghmare, Umesh V and Rao, CNR (2013) Effect of high-temperature shock-wave compression on few-layer MoS2, WS2 and MoSe2. In: CHEMICAL PHYSICS LETTERS, 582 . pp. 105-109.
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Exposure of few-layer MoS2, WS2 and MoSe2 to high-temperature shock waves causes morphological changes and a significant decrease in the interlayer separation between the (002) planes, the decrease being greatest in MoSe2. Raman spectra show softening of both the A(1g) and the E-2g(1) modes initially, followed by a slightly stiffening. Using first-principles density functional theoretical analysis of the response of few-layer MoS2 to shock waves, we propose that a combination of shear and uniaxial compressive deformation leads to flattening of MoS2 sheets which is responsible for the changes in the vibrational spectra. (C) 2013 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belongs to Science Direct|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
|Date Deposited:||17 Oct 2013 11:37|
|Last Modified:||17 Oct 2013 11:37|
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