서강대학교

목차

Table of Contents i
List of Figures iv
List of Tables xvi
국문 초록 및 주제어 xvii
Abstract xx

Chapter 1. Introduction
1.1 Introduction 1
1.1.1 Colloidal Quantum Dots 3
1.1.2 Quantum Dot Optoelectronic Device 7
1.2 Thesis Overview 11

Chapter 2. Photopatterning of Quantum Dots
2.1 Introduction 15
2.2 Photolithography 19
2.2.1 Conventional photopatterning 23
2.2.2 Lift-off patterning 24
2.3 Direct Photopatterning 26
2.3.1 Ligand removal 27
2.3.2 Polymer composite 29
2.3.3 Additive-type crosslinker 33
2.3.4 Ligand-type crosslinker 42
2.4 Conclusion 50

Chapter 3. Crosslinked QD Network Can Swell: Study of Swelling-
Induced Surface Instability
3.1 Introduction 52
3.2 Experimental Section 55
3.3 Results and Discussion 58
3.3.1 Swelling-Induced Surface Instability of Crosslinked Film 58
3.3.2 Morphological Analysis of Crosslinked QD Network Utilizing
Hansen Solubility Parameter 62
3.3.3 Mechanical Characteristics of Crosslinked QD Network 69
3.3.4 Morphological Response of Crosslinked NC Network 76
3.4 Conclusion 82

Chapter 4. Additive-Type vs. Ligand-Type Crosslinkers for
Direct Photopatterning of Robust Quantum Dot
4.1 Introduction 84
4.2 Experimental Section 89
4.3 Results and Discussion 95
4.3.1 Description of Direct Photopatterning Based on Additive-Type
Crosslinker and Ligand-Type Crosslinker 95
4.3.2 Crosslinking Simulations 102
4.3.3 Structural Stability of Crosslinked QD Network 107
4.3.4 Pattern Fidelity of QD Patterns 115
4.3.5 Electroluminescence Characteristics of Crosslinked QD-LED 118
4.4 Conclusion 125

Chapter 5. Multispectral Short-wave Infrared Ag2Te Quantum Dot
Photodetector
5.1 Introduction 127
5.2 Experimental Section 131
5.3 Results and Discussion 136
5.3.1 Fabrication of Multispectral Ag2Te QD Photodetector 136
5.3.2 Device Performance during Patterning Process 139
5.3.3 Multispectral Photodetector and Application 145
5.4 Conclusion 150

Reference 151