Title Page
ABSTRACT
국문 초록
Contents
CHAPTER 1. INTRODUCTION 10
1.1. Organic Light-Emitting Molecules: Alumina Quinoline 10
1.2. Taylor-Couette Reactor 14
1.3. Purpose of Research 16
CHAPTER 2. EXPERIMENTAL 18
2.1. Materials 18
2.2. Fabrication of DNA-Doped Alq₃ Microparticles 18
2.2.1. Fabrication of DNA-Doped Alq₃ Microparticles by Reprecipitation Method 19
2.2.2. Fabrication of DNA-Doped Alq₃ Microparticles using Taylor-Couette Reactor 20
2.3. Hybridization of DNA Molecules with Alq₃ 22
2.4. Characterization of Alq₃ Microparticles 22
CHAPTER 3. DISCUSSION 24
3.1. Fabrication of DNA-Doped 3-photonic-unit Alq₃ Microparticles 24
3.1.1. Flow regime 24
3.1.2. Surfactants 26
3.1.3. Temperature 28
3.2. Comparison of 3-photonic-unit's Morphology and Photoluminescence Properties 30
3.3. Comparison of 3-photonic-unit and Hexagonal-rod Alq₃ Microparticles 33
3.3.1. Comparison of Photoluminescence Properties 35
3.3.2. Cross-sectional TEM Images 39
3.3.3. After Hybridization with Perfect-Matched DNA 42
3.3.4. Fabrication of Flexible Alq₃ Microparticles 44
CHAPTER 4. CONCLUSION 47
REFERENCES 48
Figure 1. Molecular structure of tris(8-hydroxyquinoline)-aluminum (Alq₃) 13
Figure 2. a) Schematic illustration of flow Taylor-Couette reactor b) Photographs of flow assisted generator with thermostatic bath circulator 17
Figure 3. Schematic images of the fabrication method of 3-photonic-unit using flow assisted generator (Taylor-Couette reactor) 21
Figure 4. Morphology and fluorescence images of Alq 3 particles fabricated by different surfactant and fabrication methods. a-c) Fluorescence microscopy and... 27
Figure 5. Morphology of Alq₃ microparticles fabricated by flow assisted method. a) 60℃, b) 25℃, c) 5℃ 29
Figure 6. Comparison of SEM and fluorescence images at exactly same spot's single particle fabricated by flow assisted method 31
Figure 7. Comparison of TEM and fluorescence images at exactly same spot 32
Figure 8. Fabrication of 3-photonic-unit and hexagonal-rod Alq3 microparticles using methods of flow assisted and reprecipitation. 34
Figure 9. Photoluminescence analysis of Alq₃ microparticles fabricated by different methods. 37
Figure 10. CLSM z-stack PL intensity profiles of Alq3 microparticles 38
Figure 11. The longitudinal and z-axis directions of cross-sectional TEM images of 3-photinic-unit and hexagonal-rod Alq3 microparticles 41
Figure 12. Morphology and photoluminescence analysis of 3-photonic-unit Alq3 microparticles before and after hybridization with perfect-matched target DNA 43
Figure 13. a) SEM images and b) waveguide effect of elastic Alq3 microparticles 45
Figure 14. Fluorescence microscopic images of elastic Alq3 microparticles in solution-state 46