Search for dissertations about: "quantum size effects"
Showing result 1 - 5 of 70 swedish dissertations containing the words quantum size effects.
-
1. ZnO Quantum Dots : Size Dependent Optical, Vibrational and Photoelectrochemical Properties
Abstract : This thesis is devoted to quantum dots of ZnO in the size regime 2.5-10 nm.The focus is directed towards their size dependent properties with specialemphasis on the optical, vibrational and photocatalytic properties. The particleswere synthesized by hydrolysis in alkaline zinc acetate solution. READ MORE
-
2. Nanomechanics – Quantum Size Effects, Contacts, and Triboelectricity
Abstract : Nanomechanics is different from the mechanics that we experience in everyday life. At the nano-scale, typically defined as 1 to 100 nanometers, some phenomena are of crucial importance, while the same phenomena can be completely neglected on a larger scale. READ MORE
-
3. Solitons, vortices and shell structure in ultracold atomic quantum systems
Abstract : This dissertation deals with finite-size effects in a few different quantum many-body phenomena in ultracold atomic systems. The finite-sized systems were simulated numerically using both mean-field methods and methods beyond mean-field, e.g. quadratic configuration interaction and exact diagonalization. READ MORE
-
4. Semiconductor Nanoelectronic Devices Based on Ballistic and Quantum Effects
Abstract : As current silicon-based microelectronic devices and circuits are approaching their fundamental limits, the research field of nanoelectronics is emerging worldwide. With this background, the present thesis focuses on semiconductor nanoelectronic devices based on ballistic and quantum effects. The main material studied was a modulation doped In0. READ MORE
-
5. Quantum Devices from the Assembly of Zero- and One-Dimensional Building Blocks
Abstract : This thesis describes novel methods for the fabrication of nanometer-scale electronic devices, such as single-electron transistors and resonant tunneling diodes, from wire- and dot-shaped building blocks. The first part of the thesis describes the manipulation of metal nanoparticles and carbon nanotubes using an atomic force microscope. READ MORE