(For the case of the hexagonal boron nitride and tungsten diselenide, show your physics reasoning on...

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Physics

(For the case of the hexagonal boron nitride and tungstendiselenide, show your physics reasoning on why there is a shift inthe phonon mode as the thickness of the materials reduces?)

If thickness of material lattice is reduced , the raman shiftincreases. So, there is shift in phonon mode as the thickness ofmaterials reduces.

can someone please explain the physics reasoning of thisstatement

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3.6 Ratings (484 Votes)
Structure of hBNAs an analogy of graphene B atoms and N atoms of a 2D hBN arealternately arranged to form a honeycomb structure following thelaw of a hexagonal lattice formation Fig 12118119 The BN bondlength is 145 which forms through sp2    See Answer
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