02208nas a2200205   4500008004100000022001400041245011100055210006900166260007100235300001400306490000800320520141000328100002601738700002301764700002401787700001801811700002901829700002001858856012401878       2010                        eng d  a1932-744700aObservation of photoconductivity in Sn-doped ZnO nanowires and their photoenhanced field emission behavior0 aObservation of photoconductivity in Sndoped ZnO nanowires and th  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAR  a3843-38490 v1143 a<p>Sn-doped ZnO nanowire films have been Successfully synthesized by electrodeposition oil zinc foil followed by annealing in air at 400 degrees C for 4 h. The XRD patterns of the annealed specimens exhibit I set of well-defined diffraction peaks indexed to the wurtzite phase of ZnO. The Surface morphology of the as-synthesized films showed a network of densely packed flakes/sheets oil the Substrate. However, upon annealing, the formation of ZnO nanowires, processing length in the range of several micrometers and diameter less than 150 nm, oil the entire substrate is observed. The relative atomic percentage of Sri, estimated from the energy dispersive spectra, was found to be 0.5 and 2.0 in the ZnO films deposited for 10 and 40 min durations, respectively. Front the field emission studies, the Values of the turn-on field and threshold field, required to draw emission Current density of 10 and 100 mu A/cm(2), are observed to be 0.68 and 1.1 V/mu m for 0.5% Sn-doped ZnO and 1.72 and 2.25 V/mu m for 2.0% Sn-doped ZnO, respectively. The field emission Current stability investigated for a duration Of h at the preset value of 100 mu A is found to be excellent. A prominent photoenhancement in the field emission Current upon visible light illumination of the Sn-doped ZnO nanowires films has been observed. This enhancement has been attributed to the photoconductivity of the Sn-doped ZnO.</p>1 aSheini, Farid, Jamali1 aMore, Mahendra, A.1 aJadkar, Sandesh, R.1 aPatil, K., R.1 aPillai, Vijaymohanan, K.1 aJoag, Dilip, S.  uhttps://library.ncl.res.in/content/observation-photoconductivity-sn-doped-zno-nanowires-and-their-photoenhanced-field-0