There are two types of vibrational modes in MoS2 (as in all layered structures): vibrational modes inside layers (intralayer) and modes resulting from the movements of complete layers (interlayer).
The intralayer modes are primary related to the chemical composition of a layer (or layers) and are their fingerprint; however these can be slightly influenced by the number of layers. The interlayer modes, due to the high mass of the layers, are observed at very low frequencies and their position depends on the number of layers. As a result, both types of modes can be used to determine the number of layers.
HORIBA제품의 자세한 정보를 원하시면, 아래의 양식에 내용을 입력을 부탁드립니다.