Fang, Caihong = 基於表面等離子體基元的微流芯片光熱技术和金納米棒-納米球二聚體中的表面等離子體基元共振耦合 / 房彩虹. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references. / Abstracts in English and Chinese. / Fang, Caihong = Ji yu biao mian deng li zi ti ji yuan de wei liu xin pian guang re ji shu he jin na mi bang-na mi qiu er ju ti zhong de biao mian deng li zi ti ji yuan gong zhen ou he / Fang Caihong. / Abstract --- p.i / 摘要 --- p.iv / Acknowledgement --- p.vi / Table of Contents --- p.viii / List of Figures --- p.x / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Temperature Control on Microfluidic Chips --- p.2 / Chapter 1.1.1 --- Introduction to Microfluidics --- p.2 / Chapter 1.1.2 --- Temperature Control on Microfluidic Systems and Its Applications --- p.5 / Chapter 1.1.2.1 --- Heating Applications on Microfluidic Chips --- p.5 / Chapter 1.1.2.2 --- Heating/Cooling Methods in Microfluidic Systems --- p.7 / Chapter 1.1.2.3 --- Temperature Measurements in Microfluidic Systems --- p.10 / Chapter 1.2 --- Plasmonic Properties of Noble Metal Nanocrystals --- p.14 / Chapter 1.2.1 --- Localized Surface Plasmon Resonances of Noble Metal Nanocrystals --- p.15 / Chapter 1.2.2 --- Photothermal Conversion of Gold Nanocrystals --- p.19 / Chapter 1.2.3 --- Plasmon Coupling in Gold Nanocrystals --- p.21 / Chapter 1.3 --- Motivation and Outline of the Thesis --- p.23 / References --- p.24 / Chapter 2. --- Growth of Gold Nanocrystals and Characterization Techniques --- p.33 / Chapter 2.1 --- Growth of Au Nanocrystals Samples --- p.33 / Chapter 2.2 --- Characterization Techniques --- p.36 / References --- p.40 / Chapter 3 --- Plasmonic Heating Using Gold Nanorod-Embedded poly(dimethylsiIoxane --- p.43 / Chapter 3.1 --- Embedding Gold Nanorods with Varying Plasmon Resonance Wavelengths into Poly(dimcthylsiloxanc) (PDMS) --- p.43 / Chapter 3.2 --- Plasmonic Heating using Gold Nanorod-Embedded PDMS --- p.54 / Chapter 3.2.1 --- Photothermal Conversion of the Gold Nanorod-Embedded PDMS --- p.54 / Chapter 3.2.2 --- Temperature Measurements Using Rhodaminc B --- p.56 / Chapter 3.2.3 --- Plasmonic Heating and Temperature Measurements on Microfluidic Chips --- p.60 / Chapter 3.2.4 --- Flow Switching Based on the Gold Nanorod-Embedded-PDMS Microfluidic Chips --- p.63 / Chapter 3.3 --- Summary --- p.67 / References --- p.69 / Chapter 4 --- Surface Plasmon Coupling in Gold Nanorod-Nanosphere Heterodimers --- p.73 / Chapter 4.1 --- Preparation of Gold Nanorod-Nanosphere Heterodimers --- p.74 / Chapter 4.2 --- Plasmon Coupling in Gold Nanorod-Nanosphere Heterodimers --- p.77 / Chapter 4.2.1 --- Experimental Results --- p.77 / Chapter 4.2.2 --- Electrodynamic Calculations --- p.82 / Chapter 4.3 --- Summary --- p.89 / References --- p.90 / Chapter 5 --- Summary and Conclusion --- p.93 / Chapter 6 --- Curriculum Vitae --- p.95

Yuen, Ying Kit. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 90-96). / Abstracts in English and Chinese. / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Introduction to Electron Field Emission --- p.1 / Chapter 1.2 --- Theory of Electron Field Emission --- p.4 / Chapter 1.3 --- Fowler Nordheim Model for Electron Field Emission in Metals --- p.5 / Chapter 1.4 --- Factors Affecting the Field Emission Properties --- p.7 / Chapter 1.4.1 --- Surface Morphology --- p.7 / Chapter 1.4.2 --- Electrical Inhomogeneity --- p.7 / Chapter 1.5 --- Goal of this Project --- p.9 / Chapter Chapter 2 --- Sample Preparation and Characterization Methods / Chapter 2.1 --- Sample Preparation --- p.11 / Chapter 2.1.1 --- MEVVA Ion Implantation System --- p.13 / Chapter 2.1.2 --- TRIM Simulation --- p.17 / Chapter 2.1.3 --- Implantation Conditions --- p.19 / Chapter 2.2 --- Characterization Methods --- p.21 / Chapter 2.2.1 --- AFM - Atomic Force Microscopy --- p.21 / Chapter 2.2.2 --- C-AFM ´ؤ Conducting Atomic Force Microscopy --- p.23 / Chapter 2.2.3 --- RBS - Rutherford Backscattering Spectrometry --- p.23 / Chapter 2.2.4 --- TEM - Transmission Electron Microscopy --- p.26 / Chapter 2.2.5 --- Field Emission Measurement --- p.27 / Chapter Chapter 3 --- Field Emission Properties of Co-Si02 / Chapter 3.1 --- Introduction --- p.29 / Chapter 3.2 --- RBS results --- p.30 / Chapter 3.3 --- Experimental results of as-implanted Co-SiO2 samples --- p.32 / Chapter 3.3.1 --- AFM and results --- p.32 / Chapter 3.3.2 --- Field emission properties of as-implanted Co-Si02 --- p.35 / Chapter 3.4 --- Step-like and jump-like features in the J-E plots --- p.39 / Chapter 3.5 --- Chapter Summary --- p.43 / Chapter Chapter 4 --- Field Emission Properties of Fe-SiO2 / Chapter 4.1 --- Introduction --- p.45 / Chapter 4.2 --- RBS results --- p.46 / Chapter 4.3 --- Experimental results of as-implanted Fe-SiO2 samples --- p.48 / Chapter 4.3.1 --- AFM and results --- p.48 / Chapter 4.3.2 --- Field emission properties of as-implanted Fe-SiO2 --- p.51 / Chapter 4.3.3 --- Comparison with as-implanted Co-SiO2 --- p.54 / Chapter 4.4 --- Experimental results of annealed Fe-SiO2 samples --- p.57 / Chapter 4.4.1 --- Annealing conditions --- p.57 / Chapter 4.4.2 --- AFM and C-AFM results --- p.57 / Chapter 4.4.3 --- TEM Images --- p.62 / Chapter 4.4.4 --- Field emission properties of annealed Fe-SiO2 --- p.68 / Chapter 4.5 --- Step-like and jump-like features in the J-E plots --- p.81 / Chapter 4.6 --- Field Emission Images --- p.84 / Chapter 4.7 --- Chapter Summary --- p.85 / Chapter Chapter 5 --- Conclusion & Future Plan --- p.87 / Reference --- p.90 / Appendix / Chapter A. --- Derivation of the Fowler Nordheim Equation --- p.97

Xu, Yeming = 水熱法和熱蒸法製備硫化鋅納米结构的電子輻射損傷研究 / 徐業明. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 61-63). / Text in English; abstracts in English and Chinese. / Xu, Yeming = Shui re fa he re zheng fa zhi bei liu hua xin na mi jie gou de dian zi fu she sun shang yan jiu / Xu Yeming. / Abstract --- p.i / 摘要 --- p.ii / Acknowledgment --- p.iii / List of Figures --- p.VII / Table of contents --- p.XI / Chapter Chapter 1 --- Introduction --- p.1 / Chapter Chapter 2 --- Background of electron beam irradiation --- p.4 / Chapter 2.1 --- Basic principles of electron beam irradiation --- p.4 / Chapter 2.1.1 --- Atomic displacement --- p.5 / Chapter 2.1.2 --- Electron beam sputtering --- p.7 / Chapter 2.1.3 --- Electron beam heating --- p.8 / Chapter 2.1.4 --- Radiolysis --- p.11 / Chapter Chapter 3 --- Instrumentation --- p.13 / Chapter 3.1 --- X-ray photoelectron spectroscopy (XPS) --- p.13 / Chapter 3.1.1 --- Basic principles --- p.13 / Chapter 3.1.2 --- Chemical shifts in x-ray photoelectron spectroscopy --- p.16 / Chapter 3.2 --- The principle of the Scanning Electron Microscopy (SEM) --- p.16 / Chapter 3. 3 --- Transmission Electron Microscope (TEM) --- p.19 / Chapter 3. 3.1 --- Principle of the TEM --- p.19 / Chapter 3.3.2 --- Electron specimen interaction in TEM --- p.21 / Chapter 3.3.3 --- Electron Diffraction --- p.22 / Chapter 3.3.4 --- Contrast --- p.22 / Chapter 3.4 --- Energy dispersive x-ray spectroscopy --- p.23 / Chapter 3.5 --- Elemental mapping using Electron Energy Loss Spectrometer (EELS) --- p.24 / Chapter Chapter 4 --- Structure Degradation of ZnS Nanomaterials Synthesized via Hydrothermal Method --- p.26 / Chapter 4.1 --- Experimental --- p.26 / Chapter 4.2 --- Structure degradation of ZnS nanotubes synthesized via hydrothermal method --- p.27 / Chapter 4.2.1 --- Chemical and structural characterization of the as-synthesized nanotubes --- p.27 / Chapter 4.2.2 --- Crystallinity and structural degradation of the nanosheet under the electron beam irradiation --- p.29 / Chapter 4.2.3 --- Nanotube structure degradation with different experimental parameters --- p.33 / Chapter 4.3 --- Structure degradation of ZnS nanosheets synthesized via hydrothermal method --- p.34 / Chapter 4.3.1 --- Chemical and morphological characteristics of the ZnS nanosheets --- p.34 / Chapter 4.3.2 --- Crystallinity and structural degradation of the nanosheet under the electron beam irradiation --- p.37 / Chapter 4.3.3 --- Nanosheet structure degradation with different experimental parameters --- p.41 / Chapter 4.3.4 --- Discussion on the damage mechanisms --- p.45 / Chapter Chapter 5 --- Structure Degradation of ZnS Nanobelts Synthesized via thermal evaporation Method --- p.48 / Chapter 5.1 --- Experimental --- p.48 / Chapter 5.2 --- Chemical and morphological characteristics of the ZnS nanobelts --- p.49 / Chapter 5.3 --- Crystallinity and structural degradation of the nanobelt under the electron beam irradiation --- p.50 / Chapter 5.4 --- Nanobelt structure degradation with different experimental parameters --- p.55 / Chapter 5.5 --- Discussion on the damage mechanisms --- p.56 / Chapter Chapter 6 --- Conclusion --- p.59 / References --- p.61

O processo de sinterização de pastilhas de UO2-Gd2O3 tem sido investigado devido à sua importância na indústria nuclear e ao comportamento complexo durante a sinterização. A sinterização é bloqueada a partir de 1300°C, quando a densificação é deslocada na direção de maiores temperaturas e a densidade final obtida é diminuída. Esta pesquisa contempla o desenvolvimento de combustíveis nucleares para reatores de potência visando aumentar a sua eficiência no núcleo do reator através da elevação da taxa de queima. Foi estudado o uso do Gd2O3 de tamanho nanométrico, na faixa de 10 a 30nm, o qual foi adicionado ao UO2, visando verificar a possibilidade de evitar-se o característico bloqueio da sinterização devido ao efeito Kirkendall observado em pesquisas anteriores. As amostras foram produzidas por meio da mistura mecânica a seco dos pós de UO2 e de 7% Gd2O3 (macroestruturado e nanométrico). Os pós foram compactados e as pastilhas foram sinterizadas a 1700°C sob atmosfera de H2. Os resultados indicam que o característico bloqueio da sinterização no sistema UO2-Gd2O3 macroestruturado, que ocorre na faixa de temperatura de 1300-1500°C, retardando a densificação, foi observado de forma menos intensa quando o Gd2O3 nanométrico foi utilizado, ocorrendo à temperatura de 900°C, e facilitando a densificação posterior. Os ensaios dilatométricos indicaram uma retração de 22, 18 e 20% respectivamente nas pastilhas de UO2, UO2-7%Gd2O3 macro e UO2-7% Gd2O3nanométrico. Foi verificada uma retração 2% maior quando o Gd2O3 nanométrico foi utilizado quando comparada com a obtida com o uso do Gd2O3 macro, usado comercialmente, resultando em pastilhas com densidade adequada para uso como combustível nuclear. / The sintering process of UO2-Gd2O3 pellets has been investigated in this work for its importance in the nuclear industry and for its complex behavior during sintering. Sintering blockage occurs from 1300ºC upwards, when densification is shifted toward higher temperatures and the final density obtained is decreased. This research includes the development of nuclear fuel for power reactors in order to increase its efficiency inside the reactor core by raising the burnup. The use of nanosized Gd2O3 was studied in the range from 10 to 30nm, which was added to UO2, trying to verify the occurrence of characteristic sintering blockage due to Kirkendall sintering effect observed in previous research. The samples were produced by dry mechanical mixture of UO2 powder and 7% Gd2O3 (macro- and nanostructured). The powders were compacted and the pellets were sintered at 1700ºC under H2 atmosphere. These results indicate that the characteristic blockage during sintering in macrostructured system UO2-Gd2O3 occurred in the temperature range of 1300-1500ºC, which slows down the densification. It was observed a less intense effect when using the nanostructured Gd2O3; it took place at the temperature of 900ºC, then facilitating to get an additional densification. The dilatometric tests indicated shrinkage of 22, 18 and 20% respectively in UO2 pellets, macrostructured UO2-7% Gd2O3 and nanostructured UO2-7%Gd2O3. We detected 2% higher shrinkage, when nanostructured Gd2O3 was used instead of macrostructured Gd2O3, which is used commercially. Then, the nanostructured results showed more adequate density for nuclear fuel usage.

Nanomaterials have gained much attention as in energy storage application for its unique electrical properties. Many research groups have developed various methods to fabricate nanomaterials for various applications. However, there exists much possibilities of developing cost-effective methods for nanomaterial fabrication. No one has studied using natural organic compound A as solution base for wet process nanomaterial synthesis. In this study, a new method of fabricating two-dimensional structure nanomaterials is proposed. This method is applicable for multiple metal elements such as copper oxide, copper hydroxide, and iron oxide. The two dimensional structure nanomaterials have prestige properties because of their large surface aspect ratio. The organic compound A is also found useful for silver nanoparticle synthesis. The growth mechanism of copper nanowires is also studied using other synthesis method. The IR absorption property for 2D materials as well as copper nanorod are tested, and the 2D copper sheets perform light absorption properties characterized by UV-VIS. The organic compound A used in this study is under provisional patent process.

Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.

Thesis (M.S.)--State University of New York at Binghamton, Department of Physics, 2006. / Includes bibliographical references.

Thesis (M.S.M.E)--University of Delaware, 2006. / Principal faculty advisors: Michael Santare and Suresh G. Advani, Dept. of Mechanical Engineering. Includes bibliographical references.

Thesis (Ph.D.)--University of Delaware, 2006. / Principal faculty advisor: Jochen Lauterbach, Dept. of Chemical Engineering. Includes bibliographical references.

Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.