Journal ArticleDOI
Electronic drift mobilities and space-charge-limited currents in lithium-doped zinc oxide
M.A. Seitz,D.H. Wmtmore +1 more
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TLDR
In this article, the authors measured drift mobilities and lifetimes in oriented single crystals of high resistivity, Li-doped ZnO by determining the transit time across a plane-parallel specimen for electrons which had been photoinjected at one surface by light pulses of about 10 sec duration.About:
This article is published in Journal of Physics and Chemistry of Solids.The article was published on 1968-06-01. It has received 24 citations till now. The article focuses on the topics: Electric current & Charge carrier.read more
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ZnO : From basics towards applications
TL;DR: In this article, the authors review the fundamental properties of ZnO and of ZNO-based nanostructures, doping as well as present and future applications with emphasis on the electronic and optical properties including stimulated emission.
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ZnO: Material, Physics and Applications
TL;DR: This work critically review aspects of the material growth, fundamental properties of ZnO and ZNO-based nanostructures and doping as well as present and future applications with emphasis on the electronic and optical properties including stimulated emission.
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The physics of zinc oxide varistors
TL;DR: In this paper, the authors present a physical description of the action of ZnO varistors, which are complex ceramic bodies of zinc oxide grains sintered in an oxide flux; their conductivity is very low at low voltage, but becomes high after a certain breakdown voltage is reached.
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Oxygen interaction of stoichiometric and non-stoichiometric ZnO prismatic surfaces
TL;DR: In this article, the interaction of oxygen with electrostatic neutral ZnO 1010 surfaces by means of AES, EELS, LEED, thermal desorption spectroscopy, isotopic exchange as well as changes in the surface conductivity and work function are reported.
Journal ArticleDOI
Photoluminescent characteristics of lithium-doped zinc oxide films deposited by spray pyrolysis
TL;DR: In this article, Li-doped and undoped zinc oxide photoluminescent films prepared by the spray pyrolysis technique have been studied and it was shown that the excitation mechanism is primarily due to electron-hole pair generation across the ZnO energy bandgap, although the spectra also show two smaller peaks at 508 and 524 nm, which seem to be related to an electron excitation to localized states within the bandgap.
References
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Journal ArticleDOI
Space-Charge-Limited Currents in Solids
TL;DR: The presence of traps not only reduces the magnitude of space-charge-limited currents, but also is likely to distort the shape of the currentvoltage curve from an ideal square law to a much higher power dependence on voltage.
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Simplified Theory of Space-Charge-Limited Currents in an Insulator with Traps
Abstract: An ohmic contact between a metal and an insulator facilitates the injection of electrons into the insulator. Subsequent flow of the electrons is space-charge limited. In real insulators the trapping of electrons in localized states in the forbidden gap profoundly influences the current flow. The interesting features of the current density-voltage ($J\ensuremath{-}V$) characteristic are confined within a "triangle" in the $logJ\ensuremath{-}logV$ plane bounded by three limiting curves: Ohm's law, Child's law for solids ($J\ensuremath{\propto}{V}^{2}$) and a traps-filled-limit curve which has a voltage threshold and an enormously steep current rise. Simple inequalities relating the true field at the anode to the ohmic field facilitate qualitative discussion of the $J\ensuremath{-}V$ characteristic. Exact solutions have been obtained for an insulator with a single, discrete trap level in a simplified theory which idealizes the ohmic contact and neglects the diffusive contribution to the current. The discrete trap level produces the same type of nonlinearity discovered by Smith and Rose and attributed by them to traps distributed in energy.
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Zum Mechanismus des lichtelektrischen Primärstromes in isolierenden Kristallen
TL;DR: In this paper, Gudden et al. verstrichen the Elektronenverluste auf dem Wege zur Anode in reinen AgCl-Kristallen.
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Hall Effect Studies of Doped Zinc Oxide Single Crystals
TL;DR: In this article, the authors measured the Hall coefficient and the electrical conductivity of single-crystal specimens of ZnO at temperatures between 55\ifmmode^\circ\else\text degree\fi{}K and 300\ifmode^ \circ/else\ text degree\ fi{}k.