[Th-P] 2D matrials

[Th-P-06] Layer-Dependent Thermal Expansion and Phonon Dynamics in MoS2 Investigated by Temperature-Dependent Raman Spectroscopy

〇Hoang The Nguyen¹, Deepu Kumar², Jungyoon Cho¹, Dong-Wook Kim¹, Maeng-Je Seong², Seokhyun Yoon¹ (1. Univ. of Ewha women (Korea), 2. Univ. of Chung-Ang (Korea))

Despite extensive studies of MoS2, the layer dependence of thermal expansion and electron phonon and phonon phonon interactions remains unclear. Temperature dependent Raman spectroscopy reveals layer resolved TEC, dominant phonon phonon coupling in optical modes, and temperature-enhanced Raman intensity beyond Bose Einstein predictions