Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"HgTe"”.
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Phase coherent transport phenomena in HgTe quantum well structures
… the SO Berry phase directly. In manganese doped HgTe QWs two different effects simultaneously cause spin splitting: the giant Zeeman and the Rashba effect. By analysing the Shubnikovde Haas oscillations and the node positions of their beating pattern, it has been possible to separate these two …
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Elektronische Zustände in Typ-III-Halbleiterheterostrukturen
… Schicht von 30 °A bis 100 °A aus dem Halbmetall HgTe, dem Trogmaterial, in eine Legierung aus Hg(1-x)Cd(x)Te, dem Barrierenmaterial, eingebettet und zu einem Übergitter aufgebaut. Zweidimensionale Typ-III-Halbleiterheterostrukturen, wie die HgTe-Hg(1-x)Cd(x)Te-Quantentrogstrukturen und …
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Cd3P2 Quantum Dots As Sources for Quantum Emission and Detection of Near-IR Radiation
… PbS, PbSe), mercury chalcogenides (e.g., HgSe, HgTe), and InAs are the primary near-IR capable CQDs researched, but these species suffer from setbacks such as long carrier lifetimes (>1 µs, PbS/PbSe), toxic precursors and products (HgSe/HgTe), and non-trivial syntheses due to precursor …
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Theory of topological insulators and its applications
… the study of insulators? ^ This thesis examines HgTe and Bi2Te3 as 2D and 3D TIs respectively. Design principles for utilizing HgTe based 2D TIs as a switch and tuning the critical width is explained. Further the surface states, which are the counterpart of the edge states in a 3D TI depend on …
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Substrate cleaning using a remote hydrogen rf-plasma
… the removal of these layers the H-plasma etches HgTe, in the case of CMT, and CdTe, in the case of CZT. For silicon, the remote rf H-plasma was found to be ineffective at removing either the native oxide, or the oxide left by standard wet chemical processing. The hydrocarbon impurities were …
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Optische Charakterisierung von II-VI-Halbleiter-Oberflächen in Kombination mit First-Principles-Rechnungen
… MnTe(100)-Oberfläche und die Hg-reiche c(2x2) HgTe(100)-Oberfläche untersucht. Schließlich wurde der Wachstumsstart von CdSe auf der BeTe(100)-Oberfläche im Bereich weniger Monolagen (1-5 ML) CdSe analysiert, wobei die hohe Empfindlichkeit der Ramanspektroskopie bereits den Nachweis einer …
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Organometallic Synthesis Kinetics of CdSe Quantum Dots
CdSe quantum dots produced by organometallic synthesis are useful as tunable emitters for photonic devices and as multi-colored protein markers for biomedical imaging, applications requiring bright and narrow emission. A diffusion-limited model helped monitor growth rates via photoluminescence and …
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Methods for Accurately Modeling Complex Materials
We investigate and benchmark a variety of computational methods for accurately modeling complex materials. We focus on three specific methods used to examine systems with real world interest: screened hybrid density functional theory (DFT) used for accurate treatment of band gaps in semiconductors, …