01461nas a2200181   4500008004100000022001400041245010100055210006900156260008700225300001100312490000800323520072800331100002301059700002301082700002601105700002401131856012401155       2014                        eng d  a0003-695100aTemperature dependent Raman spectroscopy of chemically derived few layer MoS2 and WS2 nanosheets0 aTemperature dependent Raman spectroscopy of chemically derived f  a1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScFEB  a0819110 v1043 aWe have systematically investigated the temperature dependent Raman spectroscopy behavior of a few layered MoS2 and WS2 nanosheets synthesized using simple hydrothermal method. Our result reveals A(1g) and E-2g(1) modes soften as temperature increases from 77 K to 623 K. This behavior can be explained in terms of a double resonance process which is active in single-and few layer thick nanosheets. The frequency shifts and peak broadening can provide unambiguous, nondestructive, and accurate information of a few layered MoS2 and WS2. This mechanism can also be applicable in characterizing the structural, optical, electronic, and vibrational properties of other emerging layered materials. (c) 2014 AIP Publishing LLC.1 aThripuranthaka, M.1 aKashid, Ranjit, V.1 aRout, Chandra, Sekhar1 aLate, Dattatray, J.  uhttps://library.ncl.res.in/content/temperature-dependent-raman-spectroscopy-chemically-derived-few-layer-mos2-and-ws2-2