01429nas a2200217   4500008004100000022001400041245005400055210005400109260008700163300001100250490000800261520069400269100002300963700002300986700002301009700002301032700001801055700002401073700002601097856008801123       2014                        eng d  a0003-695100aField emission properties of ZnO nanosheet arrays0 aField emission properties of ZnO nanosheet arrays  a1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USAbAMER INST PHYSICScDEC  a2331010 v1053 a<p>{Electron emission properties of electrodeposited ZnO nanosheet arrays grown on Indium tin oxide coated glass substrates have been studied. Influence of oxygen vacancies on electronic structures and field emission properties of ZnO nanosheets are investigated using density functional theory. The oxygen vacancies produce unshared d electrons which form an impurity energy state; this causes shifting of Fermi level towards the vacuum, and so the barrier energy for electron extraction reduces. The ZnO nanosheet arrays exhibit a low turn-on field of 2.4 V/mu m at 0.1 mu A/cm(2) and current density of 50.1 mu A/cm(2) at an applied field of 6.4 V/mu m with field enhancement factor</p>1 aNaik, Kusha, Kumar1 aKhare, Ruchita, T.1 aChakravarty, Disha1 aMore, Mahendra, A.1 aThapa, Ranjit1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/field-emission-properties-zno-nanosheet-arrays-001762nas a2200277   4500008004100000022001400041245006700055210006700122260008100189300001100270490000600281520085000287653003001137653001901167653001501186653001201201653001101213100002301224700002301247700002401270700002301294700001801317700002401335700002601359856009901385       2015                        eng d  a2053-159100aEnhanced electron field emission from NiCo2O4 nanosheet arrays0 aEnhanced electron field emission from NiCo2O4 nanosheet arrays  aTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLANDbIOP PUBLISHING LTDcSEP  a0950110 v23 a<p>Electron emission properties of electrodeposited spinel NiCo2O4 nanosheet arrays grown on Ni foam have been studied. The work function of NiCo2O4 was calculated by density functional theory using the plane-wave basis set and used to estimate the field enhancement factor. The NiCo2O4 nanosheet arrays exhibited a low turn-on field of 1.86 V mu m(-1) at 1 mu A cm(-2) and current density of 686 mu A cm(-2) at 3.2 V mu m(-1), with field enhancement factor beta = 1460 and good field emission current stability. The field emission properties of the NiCo2O4 nanosheet arrays showed enhanced performance compared to chemically prepared NiCo2O4 nanosheets. Hence, the nanosheet arrays have great potential as robust high performance vertical structure electron emitters for future flat panel displays and vacuum electronic device applications.</p>10aDensity functional theory10afield emission10ananosheets10aNiCo2O410aspinel1 aNaik, Kusha, Kumar1 aKhare, Ruchita, T.1 aGelamo, Rogerio, V.1 aMore, Mahendra, A.1 aThapa, Ranjit1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/enhanced-electron-field-emission-nico2o4-nanosheet-arrays-101594nas a2200193   4500008004100000022001400041245007700055210006900132260011000201300001600311490000600327520084100333100002301174700002301197700002301220700002401243700002601267856010701293       2016                        eng d  a2046-206900aGlucose sensing and low-threshold field emission from MnCo2O4 nanosheets0 aGlucose sensing and lowthreshold field emission from MnCo2O4 nan  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAR  a29734-297400 v63 a<p>Manganese cobalt oxide (MnCo2O4) nanosheets were grown on nickel (Ni) foam by a simple electrodeposition method. The as-synthesized nanosheets were characterized using X-ray diffraction and scanning electron microscopy. The Ni foam supports the growth of MnCo2O4 nanosheets without any aggregation, thereby increasing its catalytic and electronic properties. The electrochemical studies show that MnCo2O4 exhibits excellent electrocatalytic activity towards glucose sensing applications. The MnCo2O4 based glucose sensor shows a good sensitivity value of 8.2 mA mM(-1) cm(-2), with a response time of 19 s. In addition to this, field emission studies of as-synthesized MnCo2O4 reveal a low turn-on field value of 1.9 V mm(-1) and good emission current stability, demonstrating MnCo2O4 nanosheets as a good field emitter material.</p>1 aNaik, Kusha, Kumar1 aKhare, Ruchita, T.1 aMore, Mahendra, A.1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/glucose-sensing-and-low-threshold-field-emission-mnco2o4-nanosheets01571nas a2200169   4500008004100000245012500041210006900166260000800235300001200243490000800255520091500263100001801178700002301196700002401219700002601243856013201269       2017                        eng d00aElectrochemical synthesis of a ternary transition metal sulfide nanosheets on nickel foam and energy storage application0 aElectrochemical synthesis of a ternary transition metal sulfide   cFEB  a154-1610 v6953 aWe report growth of nickel cobalt sulfide (NCS) ultrathin nanosheets directly on Ni foam substrate by a facile and novel electrodeposition method. The as-prepared NCS sample is used as an electrode material for supercapacitor application due to their large electrochemically active surface area and interconnected nanosheet channels for the facilitation of ion transportation. The NCS nanosheets possess enhanced electrochemical performance in terms of fast and high reversible faradaic reactions characterized by prominent oxidation and reduction peaks. NCS nanosheets showed an ultrahigh specific capacitance of 1712 Fg(-1) at a current density of 1 Ag-1 with excellent cyclic stability. The excellent supercapacitor performance of NCS nanosheets can be attributed to its rich redox reactions as well as high transport rate for both electrolyte ions and electrons. (C) 2016 Elsevier B.V. All rights reserved.1 aSahoo, Surjit1 aNaik, Kusha, Kumar1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/electrochemical-synthesis-ternary-transition-metal-sulfide-nanosheets-nickel-foam-and-energy