Field Emission Behaviour of Single-Crystal Pd Nanowires
| Autor: | Shuangyi Linghu, Rupert Schreiner, R. Lawrowski, Fuxing Gu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Silicon Analytical chemistry Nanowire chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Cathode law.invention Field electron emission chemistry law 0103 physical sciences Vacuum chamber Mica 0210 nano-technology Single crystal Diode |
| Zdroj: | 2020 33rd International Vacuum Nanoelectronics Conference (IVNC). |
| Popis: | Single-crystal Pd nanowires with typically 100 nm diameters and lengths from several micrometers to tens of micrometers were grown on Al 2 O 3 substrates in a furnace with Ar atmosphere. Integral field emission measurements of such samples after Pd coating (~10 nm) were performed in a diode configuration with a 50 $\mu\mathrm{m}$ mica spacer in a vacuum chamber at pressures of about 10–9 mbar. The IV measurement of the sample shows an integral emission current up to 2 $\mu \mathrm{A}$ at a voltage of 500 V (10 MV/m) and an onset voltage for a current of 1 nA of about 275 V. The corresponding Fowler-Nordheim plot show a linear behavior, like expected for a metal needle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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