목차

List of Tables
List of Figures
Abstract
FOREWORD: 1
Introduction 1
Thesis structure 2
CHAPTER 1: Background and Motivation 3
1.1 Two-dimensional (2D) transition metal dichalcogenides (TMDs) 3
1.1.1 Liquid-phase exfoliation (LPE) of 2D TMD nanosheets 7
1.1.2 Dispersants for LPEs of 2D TMD nanosheet 12
1.1.3 References 20
1.2 Perovskite nanocrystals 26
1.2.1 Synthesis of perovskite nanocrystals 29
1.2.2 Lanthanide ion doping of perovskite nanocrystals 32
1.2.3 Perovskite nanocrystal/2D TMD nanosheet hybrid 35
1.2.4 References 38
1.3 Optoelectronic applications of 2D TMD nanosheet and perovskite nanocrystal 41
1.3.1 Photodetector 41
1.3.2 Image sensor 47
1.3.3 References 50
CHAPTER 2: Materials and Experimental Methods 52
2.1 Materials 52
2.1.1 Transition metal dichalcogenide 52
2.1.2 Preparation of films and specimens 52
2.2 Experimental Methods 52
2.2.1 Liquid-phase exfoliation of 2D TMD nanosheet 52
2.3 Characterization 53
2.3.1 Atomic Force Microscopy (AFM) 53
2.3.2 Field Emission Scanning Electron Microscopy (FE-SEM) 53
2.3.3 Transmission Electron Microscopy (TEM) 53
2.3.4 High Resolution X-ray Diffractometer (HR-XRD) 53
2.3.5 X-ray Photoelectron Spectroscopy (XPS) 54
2.3.6 Furier Transform Infrared (FT-IR) Spectrometer 54
2.3.7 Raman spectrometer 54
2.3.8 Ultraviolet-visible (UV/Vis) spectrophotometer 54
2.4 Electrical Testing 55
CHAPTER 3: Liquid-phase exfoliation and inkjet-printing of 2D TMD nanosheets with zwitterions 56
3.1 Introduction 56
3.2 Experimental Method 60
3.3 Results and Discussion 63
3.4 Conclusions 109
3.5 References 110
CHAPTER 4: Stabilization of 2D TMD nanosheet with perovskite nanocrystal 118
4.1 Introduction 118
4.2 Experimental Method 121
4.3 Results and Discussion 123
4.4 Conclusions 166
4.5 References 167
CHAPTER 5: Summary 171
List of Publications 173
Korean Abstract 174