01519nas a2200169   4500008004100000022001400041245004400055210004300099260008700142300001100229490000800240520095600248100002401204700001901228700002101247856008101268       2014                        eng d  a0003-695100aSingle-layer MoSe2 based NH3 gas sensor0 aSinglelayer MoSe2 based NH3 gas sensor  a1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScDEC  a2331030 v1053 a<p>High performance chemical sensor is highly desirable to detect traces of toxic gas molecules. Two dimensional (2D) transition metal dichalcogenides (TMDC) semiconducting materials has attracted as high performance gas sensor device applications due to unique properties such as high surface to volume ratio. Here, we describe the utilization of single-layer MoSe2 as high-performance room temperature NH3 gas sensors. Our single-layer MoSe2 based gas sensor device shows comprehensible detection of NH3 gas down to 50 ppm. We also confirmed gas sensing measurement by recording the Raman spectra before and after exposing the device to NH3 gas, which subsequently shows the shift due to charger transfer and analyte gas molecule adsorption on surface of single-layer MoSe2 nanosheet. Our investigations show the potential use of single-layer and few layer thick MoSe2 and other TMDC as high-performance gas sensors. (C) 2014 AIP Publishing LLC.</p>1 aLate, Dattatray, J.1 aDoneux, Thomas1 aBougouma, Moussa  uhttps://library.ncl.res.in/content/single-layer-mose2-based-nh3-gas-sensor-0