Temperature-Dependent Raman Studies and Thermal Conductivity of Few-Layer MoS2
By S. Sahoo, A. Gaur, M. Ahmadi, M. Guinel, R. Katiyar. 2013
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We report on the temperature dependence of in-plane E2g and out-of-plane A1g Raman modes in high-quality few-layer MoS2 (FLMS) prepared using a high-temperature vapor-phase method. The materials obtained were investigated using transmission electron microscopy. The frequencies of these two phonon modes were found to vary linearly with temperature. The first-order temperature coefficients for E12g and A1g modes were found to be (1.32 and 1.23) × 10–2 cm–1/K, respectively. The thermal conductivity of the suspended FLMS at room temperature was estimated to be ∼52 W/mK.
Subfields: Materials Chemistry, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/895454634b53bda76b61af2f3dc1b807ef7a9459
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In Mechanics of Materials
Citations in the corpus
- Colloquium: Phononic thermal properties of two-dimensional materials (2017, background): “7(b), the measured thermal conductivity of MoS2 is also presented (Sahoo et al., 2013; Jo et al., 2014; Liu, Choi, and Cahill, 2014; Yan et al., 2014; Zhang et al., 2015), but the experimental results show no clear thickness dependence.”
- Thermal conductivity determination of suspended mono- and bilayer WS2 by Raman spectroscopy (2015, background): “According to previous studies [22, 32, 42, 43],”
- Graphene versus MoS2: A short review (2014, background): “found that few-layer MoS2 has a thermal conductivity near [150] 52 W·m−1·K−1, which is much lower than that in thick graphene layers (1000W·m−1·K−1) [142].”