臺灣博碩士論文加值系統

專利申請中，暫不公開

ABSTRACT i
List of Tables iv
List of Figure v
Chapter 1: Introduction 1
1.1 Research Background 1
1.1.1 Metal Nanoparticles and 1-D metal nanostructures 1
1.1.2 Electrospinning Technology 3
1.1.3 Surface Enhancement Raman Scattering 4
1.2 Study Objective 5
Chapter 2: Literature Review 6
2.1 Electrospinning Technology 6
2.1.1 Evolution of the Electrospinning Equipment 7
2.1.1.1 Molecular Orientation of Electrospinning Polymer Nanofiber 10
2.2 1-D Silver nanostructures 11
2.2.1 Silver 11
2.2.2 Preparation of 1-D Silver Nanostructures 12
2.3 Application of 1-D Silver Nanostructures 18
2.3.1 Antibacterial 18
2.3.2 Amperometric Sensor 18
2.3.3 Electromagnetic (EMI) Interference Shielding 19
2.3.4 Surface Enhancement Raman Scattering 20
Chapter 3: Materials and Methods 25
3.1 Materials 25
3.2 Methods 26
3.2.1 Experimental Flow Chart 26
3.2.2 Sample Preparations 27
3.2.3 Sample Terminology 32
3.3 Analysis Methods 33
3.3.1 X-Ray Diffraction 33
3.3.2 Scanning Electron Microscopy 33
3.3.3 Transmission Electron Microscope 33
3.3.4 UV–Vis Absorption Spectra 33
3.3.5 Swelling ratio and crosslinking density 34
3.3.6 Birefringence 35
3.3.7 Measurement of Ag particle size 37
3.3.8 Impedance Analyzer 41
3.3.9 Raman Analyzer 41
Chapter 4: Results and Discussion 43
4.1 The Morphology of Electrospun Ag/PVA Solution 43
4.2 Hypothetical Mechanism of 1-D Silver Nanostructure Formation from Electrospun PVA Nanofiber 49
4.3 Process Parameters on the Silver Nanostructure 51
4.3.1 Effects of Reduction Time on Silver Nanostructure 51
4.3.2 Effects of Reduction Temperature on Silver Nanostructure 54
4.3.3 Effects of CTAB and Ag Seed adding on Silver Nanostructure 60
4.3.4 Effects of PVA Polymer Chain Orientation on the Morphology of Silver Nanostructure 63
4.4 Properties of Ag/PVA Nanocomposites 68
4.4.1 Electric Property of Ag/PVA Nanofiber 68
4.4.2 SERS Characterization of Ag/PVA Nanocomposites Substrate with 4-MBA Probing Molecules 70
Chapter 5: Conclusions 74
Reference
Appendix A
Appendix B

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