Yan, RusenSimpson, Jeffrey R.Bertolazzi, SimoneBrivio, JacopoWatson, MichaelWu, XufeiKis, AndrasLuo, TengfeiWalker, Angela R. HightXing, Huili Grace2014-03-032014-03-032014-03-03201410.1021/nn405826khttps://infoscience.epfl.ch/handle/20.500.14299/101321WOS:000330542900103Atomically thin molybdenum disulfide (MoS2) offers potential for advanced devices and an alternative to graphene due to its unique electronic and optical properties. The temperature-dependent Raman spectra of exfoliated, monolayer MoS2 in the range of 100-320 K are reported and analyzed. The linear temperature coefficients of the in-plane E-2g(1) and the out-of-plane A(1g) modes for both suspended and substrate-supported monolayer MoS2 are measured. These data, when combined with the first-order coefficients from laser power-dependent studies, enable the thermal conductivity to be extracted. The resulting thermal conductivity kappa = (34.5 +/- 4) W/mK at room temperature agrees well with the first-principles lattice dynamics simulations. However, this value is significantly lower than that of graphene. The results from this work provide important input for the design of MoS2-based devices where thermal management is critical.molybdenum disulfidethermal conductivityRaman spectroscopyfirst-principle lattice dynamicssuspendedtext::journal::journal article::research article