Technology Description: |
The Scanning Electron Microscopy (SEM) instrument at MiNaLab is suitable for high-resolution imaging, semi-quantitative X-ray microanalysis, as well as cathodoluminescence imaging and spectral analyses. The microscope’s low vacuum capability allows observation of non-conductive samples in their natural state, without the need for metal coating. In situ experiments can be performed with the use of a cooling/heating stage at the temperature range -185 °C to 200 °C. |
Detectors: |
Secondary electron (SE) detector (Everhardt-Thornley, E-T). Backscattered electron (BSE) detector (Si P-N junction semiconductor detector). Thermo Scientific Ultra Dry silicon drift X-ray detector (SSD) 60 mm2 with Norvar light element window and energy resolution (MnKα FWHM) at 127.8 eV, running on a Noran System 7 (Pathfinder software) for semi-quantitative elemental analysis and mapping. Delmic SPARC Cathodoluminescence system, running on the ODEMIS software. Booking of the cathodoluminescence system to be done through the "Cathodoluminescence" instrument in LIMS. |
Technical Information: |
Sample dimensions: Large chamber accommodating samples up to 200 mm in diameter and 50 mm in height. Temperature range: -185 °C to 200 °C. Gatan C1002 cooling/heating stage and temperature controller Gatan Model 10905. Motorized stage: 5-axis motorized stage with eucentric tilt (-10 to 65°) and 360° rotation. Electron gun: Thermionic-emission LaB6 electron gun. Accelerating Voltage: 0.3 – 30 kV. Resolution: 3 nm (30 kV, WD 8 mm, SE); 4 nm (30 kV, WD 5 mm, 10 Pa, BSE). Magnification: 5 – 300k ×. Low Vacuum Mode: 10 – 650 Pa. |