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 20 of 3040 for “"Semiconductor"”.
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Synthesis and characterization of semiconductor and semiconductor-metal nanoparticles
Diese Arbeit ist ein Beitrag zur Entwicklung der kolloidalen Synthese von verschiedenen Nanomaterialien, wie Bleichalkogenide- und Indiumoxid-Nanopartikeln sowie hybriden Nanostrukturen, die aus Kupferindiumsulfidselenid- und Gold-Nanopartikeln bestehen. In dem ersten Teil werden quasi monodisperse …
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Semiconductor quantum dot lasers.
Stimulated emission in semiconductor quantum dot (QD) laser structures is demonstrated. Red-emitting, self-assembled QDs of highly strained InAlAs were grown by molecular beam epitaxy on GaAs substrates. Carriers injected electrically from the doped regions of separate confinement heterostructures …
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Integrated Multiwavelength Semiconductor Lasers
… and linewidth as in today's single-wavelength semiconductor lasers. By utilizing multiple sections of periodic structures, dual-wavelength InGaAs-GaAs ridge waveguide semiconductor lasers have been fabricated. Not only do these dual-wavelength lasers operate at predetermined wavelengths, but …
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Single frequency semiconductor lasers
Single frequency semiconductor lasers are of interest for communication systems and spectroscopy. In communications, narrow linewidth is desirable to minimize dispersion effects and low cross-talk multiple wavelength channels on a single fiber. For GaAs-based lasers, the interest in narrow …
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Hybrid plasma-semiconductor devices
A hybrid plasma-semiconductor phototransistor has been realized by substituting a plasma for the collector of an npn bipolar junction transistor. Designated as the plasma bipolar junction transistor (PBJT), this optoelectronic device relies on the correspondence between the properties of a low …
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Semiconductor cluster tool availability
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1994.
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Semiconductor-magnetic pulse generators
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1962.
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Characterization of Diamond-Semiconductor Interfaces
The extremely high thermal conductivity of diamond thin films makes them an ideal candidate for heat spreaders that can be integrated with electronic devices. By more effectively dissipating the heat generated during operation device dimensions can be shrunk increasing yield, performance losses due …
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Semiconductor nanostructures for device applications
… a synthesis and device application of some semiconductors nanostructure. Section 1 layered hexagonal disks of CuO were synthesized on a large scale via low-temperature hydrothermal growth process. The detailed morphological investigations by field emission scanning electron microscopy …
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Optical rectification in semiconductor waveguides
… pulse is generated in a completely passive semiconductor waveguide. This pulse is coupled in a microwave transmission line with periodically loaded ground electrodes to create a velocity-matched structure. The optical waveguide and the microwave transmission line form the optical …
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Semiconductor Laser Device-Level Characteristics
<p>High-speed modulations of the semiconductor lasers are highly desirable in cost-effective optical communication systems. Developing the experimental setups to extract the characteristics of the semiconductor lasers is vital to the future of the optical research projects. In this thesis, …
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Nanolithographically defined semiconductor quantum dots
In this thesis,nanolithographically de ned quantum dots are discussed including their fabrication process and optical properties. First, an introduction to the eld of quantum dots (QDs), and the advantages of QD-based optoelectronic devices are provided. The research presents our recent work …
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Nonlinear transport in semiconductor superlattices
… for transport through a single miniband of a semiconductor superlattice subject to a spatially uniform, time-dependent external electric field and/or a constant external magnetic field. The balance equations are derived from the semiclassical Boltzmann transport equation and include energy and …
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Current fluctuations in semiconductor devices
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Charge detection in semiconductor nanostructures
… adjacent to a narrow silicon MOSFET (metal-oxide-semiconductor field-effect transistor), which serves as an integrated charge sensor. We show that the MOSFET can be used to detect charging of the a-Si:H strip. By performing time-resolved measurements of this charging, we are able to measure …
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Flexible options in semiconductor design
In semiconductor design, system architects must find the right balance between competing goals [1]: 1. Creating customer value with low average development costs to minimize overhead over a range of products. 2. Fulfilling customer demand with the lowest per unit cost to maximize profit. 3. …
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Modeling the semiconductor industry dynamics
The semiconductor industry is an exciting and challenging industry. Strong demand at the application end, plus the high capital intensity and rapid technological innovation in manufacturing, makes it difficult to manage supply chain planning and investment in technology transitions. Better …
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In-fiber semiconductor filament arrays
… remains intact. We demonstrate crystalline semiconductor nanowires by post-drawing annealing procedure and characterize their electrical and optoelectric properties for the devices such as optical switch. This top-down thermal drawing approach provides new opportunities for nanostructure …
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A history of semiconductor research
Massachusetts Institute of Technology. Dept. of Humanities. Thesis. 1967. B.S.
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