01785nas a2200301   4500008004100000022001400041245006700055210006600122260007700188300001400265520077300279653003601052653001901088653002201107653001901129653001101148653001301159100002601172700002301198700002301221700002001244700002301264700002701287700002301314700002101337700002401358856010101382       2014                        eng d  a1434-194800aMetallic few-layer flowerlike VS2 nanosheets as field emitters0 aMetallic fewlayer flowerlike VS2 nanosheets as field emitters  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcNOV  a5331-53363 a<p>We report first-principles DFT calculations of the single-layer VS2 work function, the experimental synthesis of flower-like few-layer-thick VS2 nanosheets by a simple one-step hydrothermal method, and the investigation of their field emission properties. The turn-on field required to draw emission current densities of 1 and 10 mu A/cm(2) were 4 and 5.01 V/mu m, respectively. The observed turn-on field values are attributed to the high field enhancement factor (ca. 2500), which is due to presence of sharp protrusions in the VS2 nanosheets. Furthermore, the field-emission current stability of the VS2 emitter shows stable behavior over a period of 12 h. Further, DFT calculations show that the work function (f) of the single-layer VS2 emitter is 6.01 eV.</p>10aDensity functional calculations10afield emission10aLayered compounds10aNanostructures10aSulfur10aVanadium1 aRout, Chandra, Sekhar1 aKhare, Ruchita, T.1 aKashid, Ranjit, V.1 aJoag, Dilip, S.1 aMore, Mahendra, A.1 aLanzillo, Nicholas, A.1 aWashington, Morris1 aNayak, Saroj, K.1 aLate, Dattatray, J.  uhttps://library.ncl.res.in/content/metallic-few-layer-flowerlike-vs2-nanosheets-field-emitters-0