The dynamics of electron beam scattering on metal membranes: nanopore formation in metal membranes using transmission electron microscopy
| Autor: | Jae-Seok Yu, Hyun-Mi Kim, Hongsik Chae, Kidan Lee, Ki-Bum Kim, Kyeong-Beom Park, Hyung-Jun Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
lcsh:Biotechnology Analytical chemistry Nanopore perforation 02 engineering and technology Electron Inelastic scattering lcsh:Chemical technology lcsh:Technology 01 natural sciences Sputtering lcsh:TP248.13-248.65 0103 physical sciences lcsh:TP1-1185 General Materials Science lcsh:Science 010302 applied physics Elastic scattering lcsh:T Scattering Research General Engineering 021001 nanoscience & nanotechnology lcsh:QC1-999 Atomic mass Nanopore Focused e-beam Transmission electron microscopy lcsh:Q Scattering cross-section 0210 nano-technology lcsh:Physics |
| Zdroj: | Nano Convergence Nano Convergence, Vol 5, Iss 1, Pp 1-7 (2018) |
| ISSN: | 2196-5404 |
| Popis: | The dynamics of nanopore formation in metal membranes using the highly focused and high energy electron beams (e-beams) of transmission electron microscopy instruments was investigated. Various metals such as Al, Ti, Cr, Cu, and Au were selected to investigate the effect of the atomic mass of the metal on nanopore drilling, namely, elastic versus inelastic scattering. We demonstrated that the effect of elastic scattering (pore formation by sputtering) decreased as the atomic mass of the metal increased. Furthermore, experimental cross-sections obtained from normalized drilled volume vs. electron dose curves (characteristic contrast curves) matched well the calculated atomic displacement cross-sections determined from elastic scattering data. The sputtering energies of Ti, Cr, and Cu were determined to be approximately 10, 9, and 7 eV, respectively, which were in good agreement with the reported range of sputtering energy values. |
| Databáze: | OpenAIRE |
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