Temperature-dependent Raman studies and thermal conductivity of few-layer MoS2

Satyaprakash Sahoo*, Anand P.S. Gaur, Majid Ahmadi, Maxime J.F. Guinel, Ram S. Katiyar*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

410 Citations (Scopus)

Abstract

We report on the temperature dependence of in-plane E2g and out-of-plane A1g Raman modes in high-quality few-layer MoS 2 (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. © 2013 American Chemical Society.
Original languageEnglish
Pages (from-to)9042-9047
Number of pages6
JournalJournal of Physical Chemistry C
Volume117
Issue number17
DOIs
Publication statusPublished - 2-May-2013
Externally publishedYes

Cite this