Note: Microelectrode-shielding tip for scanning probe electron energy spectroscopy
| Autor: | Chunye Xu, Z. Y. Li, Wei Huang, Chunkai Xu, Jian Liu, Xiangjun Chen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Electron energy business.industry Drop (liquid) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Electron spectroscopy Spectral line Microelectrode Optics 0103 physical sciences Electromagnetic shielding Shielding effect 0210 nano-technology business Spectroscopy Instrumentation |
| Zdroj: | The Review of scientific instruments. 89(4) |
| ISSN: | 1089-7623 |
| Popis: | We report a novel microelectrode-shielding tip (ME tip) for scanning probe electron energy spectroscopy (SPEES). The shielding effect of this tip is studied through comparing the detection efficiency with the normal tip by both experiment and simulation. The results show that the backscattering count rate detected by the SPEES instrument using the normal tip begins to decrease as the tip approaches to the sample surface within 21 μm, while that using the ME tip only starts to drop off within 1 μm. This indicates that the electron energy spectra can be measured with the ME tip at a much closer tip-sample distance. Furthermore, it is also demonstrated that the ME tip can be used to obtain topography of the sample surface in situ simultaneously. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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