02650nas a2200253   4500008004100000022001400041245012100055210006900176260007100245300001400316490000600330520168600336653002202022653002102044653001802065653002402083653003602107100002802143700002502171700002202196700002502218700002302243856013002266       2014                        eng d  a1944-824400aVapor-liquid-solid growth of one-dimensional tin sulfide (sns) nanostructures with promising field emission behavior0 aVaporliquidsolid growth of onedimensional tin sulfide sns nanost  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a2018-20250 v63 a<p>Single-crystalline ultralong tin sulfide (SnS) nanowires has been grown by a thermal evaporation technique under optimized conditions on gold-coated silicon substrates, and for the first time, field emission investigations on the SnS nanowires at the base pressure of 1 X 10(-8) mbar are reported. It has been revealed that the surface morphology of the as-synthesized SnS nanostructures is significantly influenced by the deposition temperature and duration. Structural and morphological analyses of as-synthesized SnS nanostructures have been carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). To understand the optical and electronic properties of as-synthesized SnS nanowires, ultraviolet-visible (UV-vis), photo-luminescence (PL), and X-ray photoelectron spectroscopy (XPS) studies were carried out. The SEM and TEM measurements reveal the formation of ultralong SnS nanowires, with an average diameter of 80 nm. A plausible explanation on the vapor-solid-liquid (VLS) growth mechanism based on the experimental results and reported literature has been presented. Furthermore, the field emission characteristics of the SnS nanowires are found to be superior to the other metal chalcogenide nanostructures. The synthesized SnS nanowire emitter delivers a high current density of similar to 2.5 mA/cm(2) at an applied electric field of similar to 4.55 V/mu m. The emission current stability over a period of 6 h is observed to be good. The observed results demonstrate the potential of the SnS nanowire emitter as an electron source for practical applications in vacuum nano/microelectronic devices.</p>10aElectron emission10aID nanostructure10aSnS nanowires10athermal evaporation10avapor-liquid-solid (VLS) growth1 aSuryawanshi, Sachin, R.1 aWarule, Sambhaji, S.1 aPatil, Sandip, S.1 aPatil, Kashinath, R.1 aMore, Mahendra, A.  uhttps://library.ncl.res.in/content/vapor-liquid-solid-growth-one-dimensional-tin-sulfide-sns-nanostructures-promising-field-001609nas a2200265   4500008004100000022001400041245009900055210006900154260006400223300000700287490000600294520068100300653002200981653002201003653000901025653002201034653002301056100002301079700002501102700002301127700002201150700002401172700002301196856012401219       2015                        eng d  a1847-980400aStable field emission from layered MoS2 nanosheets in high vacuum and observation of 1/f noise0 aStable field emission from layered MoS2 nanosheets in high vacuu  aJANEZA TRDINE 9, RIJEKA, 51000, CROATIAbINTECH EUROPEcAPR  a100 v53 a<p>Field emission and current noise of hydrothermally synthesized MoS2 nanosheets are investigated in ultra-high-vacuum and industrially suited high-vacuum conditions. The study reveals that the emission turn-on field is pressure dependent. Moreover, the MoS2 nanosheets exhibit more stable field-electron emission in high-vacuum than in ultra-high-vacuum conditions. The investigations on field-emission current fluctuations show features of 1/f-type noise in ultra-high-vacuum and high-vacuum conditions, attributed to adsorption and desorption processes. The post-field-emission results indicate the MoS2 nanosheets are a robust field emitter in high-vacuum conditions.</p>10aElectron emission10alayered materials10aMoS210aNoise measurement10aRaman spectroscopy1 aKashid, Ranjit, V.1 aJoag, Pracheetee, D.1 aThripuranthaka, M.1 aRout, Chandra, S.1 aLate, Dattatray, J.1 aMore, Mahendra, A.  uhttps://library.ncl.res.in/content/stable-field-emission-layered-mos2-nanosheets-high-vacuum-and-observation-1f-noise-1