Ng Ching Man = 在不同氣體中一的維硒化鋅鈉米結構的發光研究 / 吳靜雯. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (leaves 67-69). / Text in English; abstracts in English and Chinese. / Ng Ching Man = Zai bu tong qi ti zhong yi de wei xi hua xin na mi jie gou de fa guang yan jiu / Wu Jingwen. / Contents / Acknowledgements --- p.ii / Abstract --- p.iii / Chapter Chapter 1- --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Motivation --- p.3 / Chapter 1.3 --- Our Work --- p.4 / Chapter Chapter 2 - --- Experiment --- p.5 / Chapter 2.1 --- MOCVD System --- p.5 / Chapter 2.2 --- Metalorganic Sources --- p.5 / Chapter 2.3 --- Substrates --- p.7 / Chapter 2.4 --- Growth of ZnSe Nanowires --- p.7 / Chapter 2.5 --- Sample Passivation --- p.8 / Chapter 2.6 --- PL measurements --- p.8 / Chapter 2.7 --- Ambient Gases --- p.9 / Chapter 2.8 --- Gases Handling Apparatus --- p.9 / Chapter 2.9 --- Ambient Gases and Laser Power Control in PL Measurements --- p.11 / Chapter Chapter 3 - --- Characterization --- p.13 / Chapter 3.1 --- Photoluminescence --- p.13 / Chapter 3.2 --- Secondary Electron Microscopy --- p.14 / Chapter 3.3 --- X-Ray diffraction --- p.15 / Chapter Chapter 4 - --- Results --- p.16 / Chapter 4.1 --- ZnSe Nanowires Grown on Si(100) --- p.16 / Chapter 4.1.1 --- Morphology and Structure of the As Synthesized Sample --- p.16 / Chapter 4.1.2 --- Morphology and Structure of the Sample after Passivation --- p.17 / Chapter 4.2 --- Effect of Ambient Condition on Photoluminescence --- p.19 / Chapter 4.2.1 --- PL in Vacuum Ambient --- p.20 / Chapter 4.2.2 --- PL Spectra in different Ambient Gases --- p.21 / Chapter 4.2.3 --- PL Reversibility --- p.23 / Chapter 4.3 --- "Effect of Pressure, Concentration and Power of Excitation on the Photoluminescence of Nanowires" --- p.26 / Chapter 4.3.1 --- Ambient Pressure --- p.27 / Chapter 4.3.1.1 --- H2S --- p.27 / Chapter 4.3.1.2 --- H2 --- p.30 / Chapter 4.3.1.3 --- CO --- p.32 / Chapter 4.3.2 --- Ambient Concentration --- p.33 / Chapter 4.3.2.1 --- H2S --- p.33 / Chapter 4.3.2.2 --- H2 --- p.36 / Chapter 4.3.3 --- Excitation Power --- p.38 / Chapter 4.3.3.1 --- H2S --- p.38 / Chapter 4.3.3.2 --- H2 --- p.40 / Chapter 4.3.3.3 --- CO --- p.41 / Chapter Chapter 5 - --- Discussions --- p.42 / Chapter 5.1 --- Quality of nanowires --- p.42 / Chapter 5.2 --- Surface Reaction --- p.43 / Chapter 5.2.1 --- Surface States --- p.43 / Chapter 5.2.2 --- Gas-surface interaction --- p.46 / Chapter 5.2.2.1 --- Physiosorption --- p.46 / Chapter 5.2.2.2 --- Chemisorption --- p.47 / Chapter 5.3 --- (NH4)2S passivation --- p.48 / Chapter 5.3.1 --- Etching --- p.48 / Chapter 5.3.2 --- (NH4)2S passivation --- p.48 / Chapter 5.4 --- PL increase in Vacuum --- p.50 / Chapter 5.5 --- Effects of different Gases --- p.50 / Chapter 5.5.1 --- H2S --- p.50 / Chapter 5.5.2 --- H2 --- p.53 / Chapter 5.5.3 --- CO --- p.54 / Chapter 5.5.4 --- Other explanations --- p.54 / Chapter 5.6 --- The amount of Intensity Change --- p.56 / Chapter 5.7 --- Rates of Adsorption and Desorption --- p.56 / Chapter Chapter 6 - --- Conclusions --- p.58 / Appendices --- p.60 / Chapter I - --- Fitted parameter of the adsorption and desorption of H2S and CO --- p.60 / Chapter II - --- Calculation of gas and photon fluxes --- p.65 / References --- p.67
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_325459 |
| Date | January 2005 |
| Contributors | Ng, Ching Man., Chinese University of Hong Kong Graduate School. Division of Physics. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English, Chinese |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, vi, 69 leaves : ill. ; 30 cm. |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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