Dr. Mahmoud Al Humaidi

Semiconductor materials development of III-V multi-junction solar cells for space applications • MOVPE process optimization of the material yield and quality for high performance solar cells • Planning and designing test structures and realizing the characterization methods • Material analysis by X-ray diffraction (XRD), Photolumiscence (PL), Electrochemical Capacitance-Voltage (ECV) and Atomic force microscopy (AFM) • Monitoring the solar cell performance and correlate with the material properties

- Fabrication of semiconductor (GaAs) nanowires on Si substrates using vapor-liquid-solid mechanism (VLS) in molecular beam epitaxy (MBE) at KIT-Karlsuhe) - In-situ investigation of the crystal structure of the NWs during growth using X-ray diffraction (XRD) technique by means of synchrotron radiation -In-situ XRD measurement of the NWs during heteroepitaxial growth of (In,Ga)As shell on GaAs NW side walls and monitoring the evolution of NW bending that results from the induced lattice-mismatch strain

- Fabrication of semiconductor (GaAs) nanowires on Si substrates using vapor-liquid-solid mechanism (VLS) in molecular beam epitaxy (MBE) at KIT-Karlsuhe) - In-situ investigation of the crystal structure of the NWs during growth using X-ray diffraction (XRD) technique by means of synchrotron radiation -In-situ XRD measurement of the NWs during heteroepitaxial growth of (In,Ga)As shell on GaAs NW side walls and monitoring the evolution of NW bending that results from the induced lattice-mismatch strain

- Fabrication of semiconductor (GaAs) nanowires on Si substrates using vapor-liquid-solid mechanism (VLS) in molecular beam epitaxy (MBE) at KIT-Karlsuhe) - In-situ investigation of the crystal structure of the NWs during growth using X-ray diffraction (XRD) technique by means of synchrotron radiation -In-situ XRD measurement of the NWs during heteroepitaxial growth of (In,Ga)As shell on GaAs NW side walls and monitoring the evolution of NW bending that results from the induced lattice-mismatch strain

- Supervisor of X-ray reflectometery (XRR) experiment - Laboratory preparator of laser laboratory for ”Visible light Laue diffraction” experiment

Structural and Spectroscopic Analysis of Lanthanide doped Nanoparticles