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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 20 of 56 for “"ZnSe"”.
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Femtosecond optical nonlinearities in ZnSe and characterization of ZnSe/GaAs heterostructures
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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Optical characterization of ZnSe by photoluminescence
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Geometrische Struktur und Morphologie epitaktisch gewachsener ZnSe-Schichtsysteme
… Verbindungshalbleiter wie GaAs, GaN, CdHgTe oder ZnSe für opto-elektronische Bauelemente immer stärkere Bedeutung. Besonders der II-VI Halbleiter ZnSe war wegen seiner großen Bandlücke und seiner geringen Versetzungsdichte einer der größten Hoffnungsträger, blau emittierende Laserdioden zu …
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ZnSe Quantum Dots as a platform for solar fuels synthesis
… on photocatalysts comprised of nanoparticulate ZnSe Quantum Dots (QDs) in aqueous (ascorbate) solution. A continuous-flow setup for photocatalysis was successfully developed which enables in-line gas chromatography of multiple samples in parallel with high sensitivity and operates in an …
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Optische Eigenschaften ZnSe-basierter zweidimensionaler Elektronengase und ihre Wechselwirkung mit magnetischen Ionen
… wurden nichtmagnetische und semimagnetische ZnSe-basierte Quantentröge untersucht. Im Mittelpunkt des Interesses standen hierbei vor allem die Modifikation der optischen Spektren mit einer zunehmenden Modulationsdotierung der Strukturen und der Einfluss von Spinflip-Streuungen der freien …
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Synthesis and structural characterization of ZnTe/ZnSe core/shell tunable quantum dots
… we present a novel approach to synthesize ZnTe/ZnSe core/shell tunable quantum dots. Characterizations such as transmission electron microscopy, wavelength dispersive X-ray spectroscopy, powder x-ray diffraction are employed to give evidence for the core/shell structure. Absorption, and …
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Lattice-matched (In,Ga)P buffer layers for ZnSe based visible emitters
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Organometallic vapor phase epitaxy of ZnSe with novel Zn and Se sources
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1994.
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Investigation of CZTSe Solar Cell with ZnS, ZnSe and In2S3 as Buffer Layers
… predominantly used buffer layer CdS such as ZnS, ZnSe and In2S3 are investigated.
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The growth and microstructural characterization of ZnSe/GaAs quantum wells and double heterostructures
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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The effect of nucleation on the quality of MBE-ZnSe/III-V heterostructures
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Growth and characterization of ZnSe by metalorganic and gas source molecular beam epitaxy
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1994.
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Prozessierung und elektrische Charakterisierung von ZnSe Heterostrukturen in verschiedenen Messgeometrien zum eindeutigen Nachweis der elektrischen Spininjektion
… Transportmessungen, die in der Vergangenheit an ZnSe-basierenden DMS/NMS/DMS Multischichtsystemem durchgeführt wurden, zeigten eine 25-prozentige Erhöhung des Widerstandes beim Übergang vom unpolarisierten in den polarisierten Zustand des DMS. Dieser Magnetowiderstandseffekt wurde durch …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… in isoelectronically doped semiconductor ZnSe scintillators. The study provides a deeper insight into the basic mechanisms of defect-related luminescence in these scintillation crystals and to relate the luminescence efficiency and response time characteristics with the crystal growth …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… in isoelectronically doped semiconductor ZnSe scintillators. The study provides a deeper insight into the basic mechanisms of defect-related luminescence in these scintillation crystals and to relate the luminescence efficiency and response time characteristics with the crystal growth …
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Properties of Type-II ZnTe/ZnSe Submonolayer Quantum Dots Studied via Excitonic Aharonov-Bohm Effect and Polarized Optical Spectroscopy
… physical and material properties of type-II ZnTe/ZnSe submonolayer quantum dots (QDs), grown via combination of molecular beam epitaxy (MBE) and migration enhanced epitaxy (MEE). I use magneto-photoluminescence, including excitonic Aharonov-Bohm (AB) effect and polarized optical spectroscopy as …
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Doping and electron-stimulated desorption of zinc selenide grown by molecular beam epitaxy
Electron irradiation affects ZnSe and ZnMgSe during growth by molecular beam epitaxy. Se desorption rates under electron irradiation are significantly larger than thermal desorption rates. Electron irradiation decreases ZnSe growth rates under Zn-stable conditions, which can be suppressed by …
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Optical Investigations of Cd Free Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells
… cells with In<sub>2</sub>S<sub>3</sub>, ZnS and ZnSe as buffer layers. The model is parameterized with the complex index of refraction of each layer in the stack. Using optical modeling, the quantum efficiency (QE) of the solar cell is calculated and used to calculate the maximum short circuit …
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Optical Properties of Colloidal II-VI and III-V Semiconductor Nanocrystals: Single Nanocrystal Photon Correlation Spectroscopy
… properties of colloidal NCs, specifically InP/ZnSe/ZnS, CdSe/CdS/ZnS, and ZnSe/ZnS NCs using a combination of ensemble and single NC photon correlation spectroscopic techniques. In the first chapter, I introduce the photophysical properties of colloidal NCs and spectroscopic techniques relevant …
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