Nanoencapsulation of ZnS:Ag particulates with indium tin oxide for field emission displays

Ollinger, M.; Craciun, V.; Singh, R. K.
March 2002
Applied Physics Letters;3/18/2002, Vol. 80 Issue 11, p1927
Academic Journal
Cathodoluminescence degradation measurements showed that by applying a nanometer-scale indium tin oxide (ITO) coating on micron-sized ZnS:Ag particles, the degradation lifetime was dramatically improved. X-ray photoelectron spectroscopy (XPS) analysis showed that the Zn2p[sub 3/2] and S2p peaks of the electron beam irradiated ZnS:Ag were shifted to higher binding energies, which correspond to oxidized elements with respect to those found for the commercial ZnS:Ag particulates. The XPS analysis for the ITO coated ZnS:Ag showed a broadening of the Zn2p[sub 3/2] and S2p peaks, which were a convolution of several peaks. In this case, the Zn2p[sub 3/2] and S2p peaks corresponding to ZnS were still present together with another shoulder corresponding to the oxidized elements. This difference in the XPS results shows that the ITO coating reduced the degradation rate by slowing the surface chemical changes on the ZnS:Ag powder.


Related Articles

  • CL study of blue and UV emissions in β-Ga2O3 nanowires grown by thermal evaporation of GaN. Guzmán-Navarro, G.; Herrera-Zaldívar, M.; Valenzuela-Benavides, J.; Maestre, D. // Journal of Applied Physics;Aug2011, Vol. 110 Issue 3, p034315 

    We report a cathodoluminescence (CL) study of β-Ga2O3 nanowires grown by thermal evaporation of GaN on Si(100) and Au/Si(00) substrates. Condensation and subsequent oxidation of metallic Ga is suggested as the growth mechanism of β-Ga2O3 nanowires. The β-Ga2O3 nanowires grown on Si(100)...

  • Luminescent defects in nanostructured silica. Kortov, V. S.; Zatsepin, A. F.; Gorbunov, S. V.; Murzakaev, A. M. // Physics of the Solid State;Jul2006, Vol. 48 Issue 7, p1273 

    The spectral and kinetic properties of excited states of luminescent defects (oxygen-deficient centers) in SiO2 ceramics are studied using pulsed cathodoluminescence and time-resolved photoluminescence. It is found that, in nanostructured samples prepared by thermal decomposition of polysilazane...

  • Optical waveguide and cavity effects on whispering-gallery mode resonances in a ZnO nanonail. Jinzhang Liu; Quang Minh Ngo; Kyung Ho Park; Sangin Kim; Yeong Hwan Ahn; Ji-Yong Park; Ken Ha Koh; Soonil Lee // Applied Physics Letters;11/30/2009, Vol. 95 Issue 22, p221105 

    Spatially resolved cathodoluminescence (CL) study of a ZnO nanonail, having thin shank, tapered neck, and hexagonal head sections, is reported. Monochromatic imaging and line-scan profiling indicate that the wave guiding and leaking from growth imperfections in addition to the oxygen-deficiency...

  • Single-crystalline nanotubes of IIB-VI semiconductors. Hu, J. Q.; Bando, Y.; Zhan, J. H.; Liao, M. Y.; Golberg, D.; Yuan, X. L.; Sekiguchi, T. // Applied Physics Letters;9/12/2005, Vol. 87 Issue 11, p113107 

    Wurtzite-type CdS and CdSe nanotubes have been grown via a Sn nanowire-templated route under thermal annealing. The tubes are structurally uniform and defect-free single crystals, and partially or completely filled with Sn nanowires; most of the tubes display pin-like structures showing...

  • Single-crystalline cubic structured InP nanosprings. Shen, G. Z.; Bando, Y.; Zhi, C. Y.; Yuan, X. L.; Sekiguchi, T.; Golberg, D. // Applied Physics Letters;6/12/2006, Vol. 88 Issue 24, p243106 

    Cubic structured nanosprings, InP nanosprings, have been synthesized via a simple thermochemical process using InP and ZnS as the source materials. Each InP nanospring is formed by rolling up a single InP nanobelt with the growth direction along the <111> orientation. The formation of these...

  • The blue cathodoluminescence and photoluminescence of porous silicon nanoribbons. Yueyin Shao; Yongqian Wei; Zhenghua Wang // Journal of Materials Science: Materials in Electronics;Feb2011, Vol. 22 Issue 2, p179 

    The porous silicon nanoribbons were fabricated via two steps: first, the silicon nanoribbons were obtained using a high temperature oxide assisted method; and then they were etched by HF solution to form nanoporous cavities. These porous silicon nanoribbons exhibited stable blue...

  • Growth of light-emitting silicate nanowires on individual Au particles in self-assembled hexagonal Au particle networks. Su, P. Y.; Lu, M. Y.; Hu, J. C.; Cheng, S. L.; Chen, L. J.; Liang, J. M. // Applied Physics Letters;10/17/2005, Vol. 87 Issue 16, p163101 

    Hierarchical growth of silicate nanowires on individual Au particles in self-organized hexagonal Au particle networks has been achieved by appropriate control of annealing conditions in N2 ambient. Cathodoluminescence data showed that the silicate nanowires emit light with a wavelength of 415...

  • Role of structural defects in the ultraviolet luminescence of multiwall boron nitride nanotubes. Pierret, Aurélie; Nona, Hanond; Fossard, Frédéric; Attal-Trétout, Brigitte; Yanming Xue; Golberg, Dmitri; Barjon, Julien; Loiseau, Annick // Journal of Applied Physics;2015, Vol. 118 Issue 23, p234307-1 

    BN nanotubes (BNNTs) are structurally similar to their carbon counterparts, though much less investigated. New synthesis methods have been recently reported, enabling the production of industrial quantities and stimulating the search of new applications for the BNNTs. In this paper, we...

  • Structural and Optical Properties of ZnO Crystals Synthesized With Controlled Size (abstract). Guaño, S. E.; Fischer, A.; Moura, F. J.; Ponce, F. A.; Solórzano, I. G. // AIP Conference Proceedings;4/19/2009, Vol. 1119 Issue 1, p215 

    ZnO grows in various nanostructural morphologies such as belts, platelets, wires, and rods, which depend on the synthesis routes and growth conditions. We report on the synthesis of highly luminescent ZnO crystallites and the correlation between the crystalline structure and optical properties....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics