# Browse Dissertations and Theses - Electrical and Computer Engineering by Contributor "Kim, Kyekyoon"

• (2020-01-31)
(Al)GaN-based transistors are the backbones of next-generation high power/frequency electronics. However, various challenges with this exciting technology still necessitate more comprehensive investigations. In particular, ...

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• (2004)
A careful physical design, namely, layout, can convert the design into tangible devices without fabrication problems. The horseshoe-shaped gate and the design rule of thumb were proposed in the physical design and two mask ...

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• (1998)
Additional experiments were performed using 120-$\mu$s pulses. In these experiments, pellet velocities were increased by 400 m/s without shattering the pellet and with only minimal pellet ablation. A multipulsed acceleration ...

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• (2013-05-24)
This thesis presents a comprehensive study on the development of GaN-based high-power transistors. First, selective area growth by plasma-assisted molecular beam epitaxy, a technology developed by our group for Ohmic contact ...

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• (2015-07-17)
With the advance of nanofabrication, the capability of nanoscale metallic structure fabrication opens a whole new study in nanoplasmonics, which is defined as the investigation of photon-electron interaction in the vicinity ...

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• (2003)
Several devices, i.e., homo junction light-emitting diode (HJ LED), multi-quantum well (MQW) LED, and buried gate junction field effect transistor (BGJFET), are fabricated by PAMBE and their characteristics are demonstrated ...

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• (2014-01-16)
Typically semiconductor materials used for photonic devices have been limited to those exhibiting a direct bandgap. In order to incorporate indirect bandgap and non-semiconducting materials, extensive research efforts have ...

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• (2021-04-08)
The objective of this research is the design and development of ultra-low-leakage mixed-conduction gallium nitride (GaN) diodes with reverse blocking voltage approaching parallel-plane behavior. Although GaN is a promising ...

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• (2012-09-18)
In this study, materials for the nanostructured solar cells were synthesized and their effects were investigated. TiO2 nanoparticles, which are commonly used in the nanostructured solar cells, were synthesized by a newly ...

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• (1993)
This thesis is concerned with the use of an electric field in the extraction of liquid drops from a capillary orifice or nozzle. The motivating application is ink jet printing. Current drop-on-demand ink jets use pressure ...

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• (1993)
This thesis is concerned with the use of an electric field in the extraction of liquid drops from a capillary orifice or nozzle. The motivating application is ink jet printing. Current drop-on-demand ink jets use pressure ...

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PDF (7MB)
• (2017-04-11)
This dissertation is the result of research which, although electrical and computer engineering in nature, also aims to improve the performance of many systems in the field of quantum information. For example, random number ...

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PDF (8MB)
• (2010-05-18)
This thesis work presents a comprehensive study of the application of the PAMBE-SAG technique to fabrication of high-power GaN-based switching HEMTs. First, a detailed study of the efficacy of SAG was conducted by comparing ...

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• (2012-02-06)
Strain-induced self-rolled-up semiconductor nanotubes are a new type of building block for three-dimensional architectures. Semiconductor nanotubes (SNTs) take advantage of the lattice mismatch between different layers and ...

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PDF (39MB)
• (1994)
An advanced railgun system has been developed to assess its feasibility as a hypervelocity hydrogen pellet injector for magnetically confined plasmas. It consists of a pellet generator/gas gun assembly for freezing hydrogen ...

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• (2011-01-21)
Hydrogel particles encapsulating biomolecules or living cells are becoming an attractive means to mediate drug delivery or facilitate cell-based treatment of diseases. These particles are capable of maintaining drug ...

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• (2012-06-27)
This thesis reports on the experimental examination of the use of nanostructures for three topics of light-matter interaction. First, enhanced photon absorption for photocatalytic reactions has been demonstrated. ...

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PDF (7MB)
• (2011-01-21)
Phase change random access memory (PCRAM) is a leading contender for next generation nonvolatile memory. The phase change mechanism from high resistance amorphous phase to low resistance crystalline phase in nano-timescale ...

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