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-001884nas a2200229   4500008004100000022001400041245009800055210006900153260011000222300001600332490000600348520097300354100002601327700002601353700002801379700002301407700001801430700002401448700002401472700002601496856013201522       2015                        eng d  a2046-206900aFacile synthesis of Ag nanowire-rGO composites and their promising field emission performance0 aFacile synthesis of Ag nanowirerGO composites and their promisin  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAPR  a41887-418930 v53 a<p>Crystalline, ultra long silver nanowires (Ag NWs), few-layered rGO (reduced graphene oxide) and their rGO-Ag NW nanocomposite have been synthesized using a polyol reflux technique under optimized experimental conditions. The field emission performance of the rGO-Ag NW nanocomposite, rGO and Ag NW emitters was investigated. The turn on field required to draw an emission current density of similar to 1 mA cm(-2) was found to be similar to 5.00, 3.92 and 2.40 V mu m(-1) for the Ag NW, rGO and rGO-Ag NW nanocomposite emitters, respectively. The combined contribution of the sharp edges of the thin graphene sheets and high aspect ratio of the Ag nanowires, and their synergetic effect in the rGO-Ag NW nanocomposite, are responsible for the enhanced field emission behavior. First-principles density functional calculations show that the enhanced field emission may also be due to the overlapping of the electronic structures of the Ag NWs and rGO nanosheets.</p>1 aSamantara, Aneeya, K.1 aMishra, Dillip, Kumar1 aSuryawanshi, Sachin, R.1 aMore, Mahendra, A.1 aThapa, Ranjit1 aLate, Dattatray, J.1 aJena, Bikash, Kumar1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/facile-synthesis-ag-nanowire-rgo-composites-and-their-promising-field-emission-performance-001111nas a2200205   4500008004100000022001400041245006100055210006100116260011000177300001400287490000600301520036900307100002000676700002300696700002300719700001800742700002400760700002600784856009500810       2015                        eng d  a2046-206900aField emission properties of spinel ZnCo2O4 microflowers0 aField emission properties of spinel ZnCo2O4 microflowers  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcDEC  a5372-53780 v53 a<p>ZnCo2O4 microflowers were synthesized by a simple low temperature hydrothermal route. A single three-dimensional microflower consists of hundreds of self-assembled petals, with a thickness of several nanometers. These microflowers have exceptionally thin edges with a few petal layers. The ZnCo2O4 microflowers appeared to be stable and good field emitters.</p>1 aRatha, Satyajit1 aKhare, Ruchita, T.1 aMore, Mahendra, A.1 aThapa, Ranjit1 aLate, Dattatray, J.1 aRout, Chandra, Sekhar  uhttps://library.ncl.res.in/content/field-emission-properties-spinel-znco2o4-microflowers-0