Experimental methods in semiconductor physics
2019/2020
Tuesdays 10.00 – 11.45 on-line
prof. dr hab. Adam
Babiński, tel. 22-55-32-725, e-mail:
babinski@fuw.edu.pl
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Examination topics
1. Semiconductors - basic information on elemental semiconductors, binary compounds, oxides, layered semiconductors, organic semiconductors, semimagnetic semiconductors.
2. Semiconductor Nanostructures – the effect of dimension on their properties.
3. Growth of semiconductors: bulk techniques, epitaxial techniques.
4. X-ray difraction: X-ray sources, X-ray monochromatization, the Laue method, the powder (Debye-Scherrer) method.
5. Neutron diffraction and scattering: neutron sources, neutron diffraction, neutron spectroscopy. Experimental setups: triple-axis spectrometer, time-of-flight spectrometer, backscattering spectrometer.
6. Electron diffraction and scattering: the principle of operation, Low-Energy Electron Diffraction, Reflection High Electron Energy Diffraction, Transmission Electron Microscopy - imaging and diffraction modes; High-Resolution Transmission Electron Microscopy; Energy Dispersive X-ray Spectroscopy; Electron Energy-Loss Spectroscopy.
7. Surface characterization methods: Scanning Electron Microscopy Scanning Tunneling Microscopy, Atomic Force Microscopy – principles of operation.
8. Optical methods – experimental setups:
a) light sources: incandescence sources, arc lamps, glow discharge lamps, electroluminescence diodes, lasers (electrical discharge, electroluminescence, optical pumping) – principles of operation;
b) optical materials and components;
c) spectrometers, detectors.
9. Optical methods – experimental techniques: absorption, photocurrent, reflectivity, modulation techniques.
10. Photoluminescence from semiconductor materials and nanostructures.
11. Raman scattering
12. Electrical methods – experimental techniques: capacitance (TSCAP, DLTS), resistivity measurements.
13. Effects of magnetic field on optical and electrical properties of nanostructures: Landau level quantization, Shubnikov de Haas oscillations, Hall effect.