Tungsten oxide nanostructures:controllable growth and field emission |
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Authors: | Yue Shuanglin Xu Tingting Li Wei Yan Ji Yi He |
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Affiliation: | Key Laboratory for Physics and Chemistry of Nanodevices,Department of Electronics,Peking University, Beijing 100871,China |
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Abstract: | Non-fully oxidized tungsten oxide(WO3-x) nanostructures with controllable morphology were fabricated by adjusting the gas pressure in chemical vapor deposition.The comparative field emission(FE) measurements showed that the obtained W18O49 nanowires have excellent FE property.The turn-on field was 7.1 V/μm for 10μA/cm2 and the observed highest current density was 4.05 mA/cm2 at a field of 17.2 V/μm.Good electron emission reproducibility was also observed during thermal evaporation and desorption testing. |
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Keywords: | non-fully oxidized tungsten oxides field emission nanowire |
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