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결과 내 검색
동의어 포함
Title Page
요약문
ABSTRACT
Contents
CHAPTER 1. INTRODUCTION 15
1.1. Energy Harvesting 15
1.2. Research Progress of TENGs 16
1.3. Research Objective 20
CHAPTER 2. EXPERIMENTAL 24
2.1. Materials 24
2.2. Preparation of Nanocellulose (NC) paste 24
2.3. 3D Printing Setup 25
2.4. Printing of NC Paste on Substrates 25
2.5. Fabrication of the TENG device 26
2.6. Energy harvesting performance test 26
2.7. Mechanical Properties and FTIR 27
2.8. Scanning Electron Microscopy, Surface Profilometer, and X-ray Photoelectron Spectroscopy 27
CHAPTER 3. RESULTS AND DISCUSSION 32
3.1. The 3D printing process of NC paste and film shape fidelity 32
3.2. FTIR and Mechanical properties of 3DP NC samples 33
3.3. Surface Morphology 36
3.4. Working Mechanism of 3DP-NC-Bio-TENG 37
3.5. Triboelectric performance of 3DP-NC-Bio-TENG 38
CHAPTER 4. CONCLUSION 54
References 56
Figure 1.1. Summary of the devices that can be operated on TENGs 22
Figure 2.1. Schematic representation of the 3D printing process of NC 29
Figure 2.2. 3DP-NC-Bio-TENG device configuration 30
Figure 2.3. 3DP-NC-Bio-TENG real test setup 31
Figure 3.1. 3DP NC films: a(i) on the PC substrate, a(ii) PC substrate dried NC flexible film, a(iii) FTIR of NC film printed on the PC substrate, b(i) on... 43
Figure 3.2. 3DP NC films: a(i) PC substrate 3DP NC film, a(ii) slightly rolled 3DP NC film, a(iii) fully rolled 3DP NC film, a(iv) folded 3DP NC film, b(i)... 44
Figure 3.3. 3DP NC films: (a) stress-strain curves, and (b) Young's moduli. 45
Figure 3.4. Surface morphology of the NC films (a) manually cast NC film, (b) 3DP NC film on the wood substrate, (c) PC substrate 3DP NC film, (d)... 46
Figure 3.5. Working mechanism of 3DP Bio-TENG for short circuit current: (a) (i) NC and PVDF film in original state, (ii) NC and PVDF film in pressed... 47
Figure 3.6. Energy harvesting performance of 3DP NC films on the PC substrate coated with the silver electrode: (i) open circuit voltage under sine... 48
Figure 3.7. Energy harvesting performance of 3DP NC films on the PC substrate coated with aluminum electrode: (i) open circuit voltage under sine... 49
Figure 3.8. Energy harvesting performance of 3DP NC films on the wood substrate coated with the silver electrode: (i) open circuit voltage under sine... 50
Figure 3.9. Energy harvesting performance of 3DP NC films on the wood substrate coated with aluminum electrode: b(i) open circuit voltage under sine... 51
Figure 3.10. Energy harvesting performance of 3DP NC films: (a) the output power under sine wave, (b) the output power under square wave 52
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