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Electron field emission from ZnO self-organized nanostructures and doped ZnO:Ga nanostructured films |
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| Authors: | V.A. Karpyna A.A. Evtukh V.I. Lazorenko V.D. Khranovskyy D.A. Fedorchenko |
| Affiliation: | a Frantsevich Institute for Problems of Material Science, NASU, Kiev 03680, Ukraine b Lashkarev Institute of Semiconductor Physics, NASU, Kiev 03028, Ukraine c Department of Physics, Chemistry and Biology, Linköping University, 58183 Linkoping, Sweden |
| Abstract: | Self-organized ZnO nanostructures were grown by thermal decomposition of metalorganic precursors as well as by carbothermal reduction process. Nanostructured undoped and gallium-doped ZnO nanostructured films were deposited by plasma-enhanced chemical vapor deposition from metalorganic compounds. Electron field emission follows Fowler-Nordheim equation. Efficient electron emission was obtained from self-organized nanostructures due to their geometric shape. Enhanced field emission from ZnO:Ga nanostructured films in comparison with undoped ZnO films is obliged to lowering work function at doping by gallium. |
| Keywords: | Field emission ZnO Nanostructures Cold cathodes |
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