Structural and Electrical Characterization of Amorphous and Crystalline Manganese Oxide Thin Films Deposited by DC Magnetron Sputtering
| Autor: | David H. Olson, Muhammad B. Haider, Michael Boyle, Costel Constantin, Emma G. Langford, David J. Lawrence, Kenneth D. Shaughnessy |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Silicon business.industry Annealing (metallurgy) Mechanical Engineering chemistry.chemical_element 02 engineering and technology Sputter deposition 021001 nanoscience & nanotechnology Condensed Matter Physics Thermoelectric materials 01 natural sciences Amorphous solid chemistry Mechanics of Materials Seebeck coefficient 0103 physical sciences Optoelectronics General Materials Science Thin film 0210 nano-technology business Energy source |
| Zdroj: | MRS Advances. 1:3929-3934 |
| ISSN: | 2059-8521 |
| DOI: | 10.1557/adv.2016.293 |
| Popis: | The environmental impact resulting from the use of fossil fuel as an energy source affects the entire globe. Eventually, fossil fuels will no longer be a reasonable source of energy and alternative energy sources will be needed. Thermoelectric materials (TE) that directly convert heat into electricity are a viable option to replace the conventional fossil fuel because they are reliable, cost effective, and use no moving parts. Recently researchers discovered the existence of giant Seebeck coefficient in manganese oxide (MnO2) powders, which ignited an increased interest in MnO2-based materials. In this work we present a systematic structural and electrical characterization of amorphous and crystalline MnxOy thin films. These films were deposited at room temperature on heated silicon and sapphire substrates by DC Magnetron Sputtering. Our preliminary results show that MnxOy/silicon thin films undergo a crystalline change from Mn2O3 to Mn3O4 as annealing temperature is increased from 300°C to 500°C. |
| Databáze: | OpenAIRE |
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