Size Distribution, Mechanical and Electrical Properties of CuO Nanowires Grown by Modified Thermal Oxidation Methods
| Autor: | Liga Jasulaneca, Mikk Antsov, Edijs Kauranens, Raimonds Meija, Matiss Martins Ramma, Raitis Sondors, Gunta Kunakova, Donats Erts, Jelena Kosmaca |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Thermal oxidation
Yield (engineering) Materials science synthesis thermal oxidation General Chemical Engineering Nanowire Resonance Young's modulus Article lcsh:Chemistry CuO NEMS symbols.namesake lcsh:QD1-999 Electrical resistivity and conductivity Electric field nanowire symbols General Materials Science Young’s modulus Composite material Order of magnitude electrical resistivity |
| Zdroj: | Nanomaterials Nanomaterials, Vol 10, Iss 1051, p 1051 (2020) Volume 10 Issue 6 |
| ISSN: | 2079-4991 |
| Popis: | Size distribution, Young&rsquo s moduli and electrical resistivity are investigated for CuO nanowires synthesized by different thermal oxidation methods. Oxidation in dry and wet air were applied for synthesis both with and without an external electrical field. An increased yield of high aspect ratio nanowires with diameters below 100 nm is achieved by combining applied electric field and growth conditions with additional water vapour at the first stage of synthesis. Young&rsquo s moduli determined from resonance and bending experiments show similar diameter dependencies and increase above 200 GPa for nanowires with diameters narrower than 50 nm. The nanowires synthesized by simple thermal oxidation possess electrical resistivities about one order of magnitude lower than the nanowires synthesized by electric field assisted approach in wet air. The high aspect ratio, mechanical strength and robust electrical properties suggest CuO nanowires as promising candidates for NEMS actuators. |
| Databáze: | OpenAIRE |
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