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Book Cover
E-book
Author Meng, Hong

Title Colloidal Quantum Dot Light Emitting Diodes : Materials and Devices
Edition 1st ed
Published Newark : John Wiley & Sons, Incorporated, 2023
©2024

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Description 1 online resource (400 pages)
Contents Cover -- Title Page -- Copyright -- Contents -- Preface -- Chapter 1 History and Introduction of QDs and QDLEDs -- 1.1 Preparation Route of Quantum Dots -- 1.2 Light-Emitting Characteristics of Quantum Dots -- 1.2.1 Particle Size and Emission Color -- 1.2.2 Quantum Dot Optical Property -- 1.2.2.1 Quantum Surface Effect -- 1.2.2.2 Quantum Size Effect -- 1.2.2.3 Quantum Confinement Effect -- 1.2.2.4 Quantum Tunnelling Effect -- 1.2.2.5 Quantum Optical Properties -- 1.2.3 Core-Shell Structure of QDs -- 1.2.4 Continuously Gradated Core-Shell Structure of QDs (cg-QDs) -- 1.2.5 Typical QDs Materials -- 1.2.5.1 II-VI Semiconductor QDs -- 1.2.5.2 IV-VI Semiconductor QDs -- 1.2.5.3 II3-V2 Semiconductor QDs -- 1.2.5.4 Ternary I-III-VI2 Chalcopyrite Semiconductor QDs -- 1.2.5.5 Single Element-Based Semiconductor QDs -- 1.3 Application of Quantum Dots on Display Devices -- 1.3.1 The Basic Structure of QDLED -- 1.3.2 Main Factors Affecting QDLED Light Emission -- 1.3.2.1 Auger Recombination (AR) -- 1.3.2.2 Fluorescence Resonance Energy Transfer -- 1.3.2.3 Surface Traps and Field Emission Burst -- 1.3.3 History of QDLED Development -- 1.4 Conclusion and Remarks -- References -- Chapter 2 Colloidal Semiconductor Quantum Dot LED Structure and Principles -- 2.1 Basic Concepts -- 2.1.1 Color Purity -- 2.1.2 Solution Processability -- 2.1.3 Stability -- 2.1.4 Surface States of Quantum Dots -- 2.1.5 Energy Levels and Energy Bands -- 2.1.6 Metals, Semiconductors, and Insulators -- 2.1.7 Electrons and Holes -- 2.1.8 Fermi Distribution Function and Fermi Energy Level -- 2.1.9 Schottky Barrier -- 2.1.10 Energy Level Alignment -- 2.2 Colloidal Quantum Dot Light-Emitting Devices -- 2.2.1 The Basic Structure of QDLED -- 2.2.2 The Working Principle of QDLED -- 2.2.3 Operating Parameters of QDLED -- 2.2.3.1 Turn-on Voltage -- 2.2.3.2 Luminous Brightness
2.2.3.3 Luminous Efficiency -- 2.2.3.4 Luminescence Color -- 2.2.3.5 Luminous Lifetime -- 2.2.3.6 QDLED Device Fabrication Process -- References -- Chapter 3 Synthesis and Characterization of Colloidal Semiconductor Quantum Dot Materials -- 3.1 Background -- 3.2 Synthesis and Post-processing of Colloidal Quantum Dots -- 3.2.1 Direct Heating Method and Hot Injection Synthesis Method -- 3.2.1.1 Hot-Injection Method -- 3.2.1.2 Direct Heating Method -- 3.2.2 Precursor Chemistry -- 3.2.3 Ligating and Non-ligating Solvents -- 3.2.4 Mechanism of Nucleation and Growth of Colloidal Quantum Dots -- 3.2.5 Size Distribution Focus and Size Distribution Scatter -- 3.2.6 Crystalline Species-Mediated Growth and Orientation of Nanocrystals Attachment Growth -- 3.2.7 Synthesis Methods and Band Gap Regulation Engineering of Nuclear-Shell Quantum Dots -- 3.2.7.1 Non-alloyed Core-Shell Quantum Dots -- 3.2.7.2 Alloy Core-Shell Quantum Dots -- 3.2.8 Surface Chemistry of Colloidal Quantum Dots -- 3.2.8.1 Covalent Bond Classification Method -- 3.2.8.2 Entropic Ligands -- 3.3 Material Characterization -- 3.3.1 Ultraviolet-Visible (UV-Vis) Absorption and Fluorescence Spectra -- 3.3.2 Nuclear Magnetic Resonance Spectroscopy -- 3.3.3 Fourier Transform Infrared Spectroscopy (FTIR) -- 3.3.4 X-Ray Photoelectron Spectroscopy (XPS) -- 3.3.5 Transmission Electron Microscopy -- 3.3.6 Small-Angle X-Ray Scattering and Wide-Angle X-Ray Scattering -- 3.3.7 X-Ray Diffractometer -- 3.3.8 X-Ray Absorption Fine Structure Spectra -- 3.3.9 Measurement of Fluorescence Quantum Yield -- 3.4 Conclusion and Outlook -- References -- Chapter 4 Red Quantum Dot Light-Emitting Diodes -- 4.1 Background -- 4.2 Red Light Quantum Dot Materials -- 4.2.1 Materials -- 4.2.2 Quantum Dot Structure Design and Optimization -- 4.2.3 Surface Ligands -- 4.2.4 Core-Shell Structure -- 4.2.5 Alloy Core-Shell Structure
4.3 Red QDLED Devices -- 4.3.1 Red QDLED Device Architecture Development -- 4.3.2 Common Device Structures -- 4.4 Conclusion and Outlook -- References -- Chapter 5 Green Quantum Dot LED Materials and Devices -- 5.1 Background -- 5.2 Commonly Used Luminescent Layer Materials in Green QDLEDs -- 5.2.1 Discrete Core/Shell Quantum Dots -- 5.2.2 Alloyed Core/Shell Quantum Dots -- 5.2.3 Core/Multilayer Shell Quantum Dots -- 5.3 Development of Device Structures for Green QDLEDs -- 5.4 Factors Affecting the Performance of Green QDLEDs -- 5.4.1 QD Ligand Effect -- 5.4.2 QD Core/Shell Structure -- 5.4.3 Optimization of the Device Structure -- 5.4.4 Other Strategies to Improve Device Performance -- 5.5 Summary and Outlook -- References -- Chapter 6 Blue Quantum Dot Light-Emitting Diodes -- 6.1 Introduction -- 6.2 Blue Quantum Dot Luminescent Materials -- 6.2.1 Blue Quantum Dots Containing Cadmium -- 6.2.2 Cadmium-Free Quantum Dots -- 6.2.2.1 Quantum Dots Based on InP -- 6.2.2.2 Quantum Dots Based on ZnSe -- 6.2.2.3 Quantum Dots Based on Cu -- 6.2.2.4 Quantum Dots Based on AlSb -- 6.3 Optimization of Charge Transport Layer (CTL) -- 6.3.1 Hole Transport Layer -- 6.3.2 Electron Transport Layer -- 6.4 Device Structure -- 6.5 Summary -- References -- Chapter 7 Near-Infrared Quantum Dots (NIR QDs) -- 7.1 Introduction of Near-Infrared Quantum Dots -- 7.2 Near-Infrared Quantum Dot Materials -- 7.2.1 Chalcogenide Lead Quantum Dots -- 7.2.2 Chalcogenide Cadmium Quantum Dots -- 7.2.3 Silicon Quantum Dots -- 7.3 Optimization of Near-Infrared Quantum Dot Materials -- 7.3.1 Regulation of Near-Infrared Quantum Dots by Ligand Engineering -- 7.3.2 Control of Near-Infrared Quantum Dots by Core/Shell Structure -- 7.3.3 Quantum Dots in the Matrix -- 7.4 Summary and Prospect -- References -- Chapter 8 White QDLED -- 8.1 Generation of White Light -- 8.2 Quantum Dots for White LEDs
8.2.1 Yellow-Blue Composite White Light Quantum Dots -- 8.2.1.1 Cadmium-Containing Yellow Light Quantum Dots -- 8.2.1.2 Cadmium-Free Yellow Light Quantum Dots -- 8.2.2 Three-Base Color Quantum Dot Composite -- 8.2.3 Quantum Dots with Direct White Light Emission -- 8.3 Summary Outlook -- References -- Chapter 9 Non-Cadmium Quantum Dot Light-Emitting Materials and Devices -- 9.1 Introduction -- 9.2 Quantum Dots and QDLED -- 9.2.1 InP -- 9.2.2 ZnSe -- 9.2.3 I-III-VI -- 9.3 Methods for Optimizing QDLED Performance -- 9.3.1 Ligand Engineering -- 9.3.2 Shell Engineering -- 9.3.3 QDLED Device Structure Optimization -- 9.4 Summary and Outlook -- References -- Chapter 10 AC-Driven Quantum Dot Light-Emitting Diodes -- 10.1 Principle of Luminescence of DC and AC-Driven QDLEDs -- 10.2 Mechanism of Double-Emission Tandem Structure of AC QDLEDs -- 10.2.1 Field-Generated AC QDLEDs -- 10.2.2 Half-Field to Half-Injection AC QDLEDs -- 10.2.3 AC/DC Dual Drive Mode QDLEDs -- 10.3 Optimization Strategies for AC QDLEDs -- 10.3.1 Optimization of the Field-Induced AC QDLED -- 10.3.1.1 Dielectric Layer Optimization -- 10.3.1.2 Quantum Dot Layer Optimization -- 10.3.2 Optimization of Half-Field-Driven Half-Injected AC QDLEDs -- 10.3.2.1 Charge Generation Layer Optimization -- 10.3.2.2 Tandem Structure -- 10.3.2.3 AC/DC Dual Drive Mode QDLED Optimization -- 10.3.3 Conclusion and Future Direction of AC-QDLED -- References -- Chapter 11 Stability Study and Decay Mechanism of Quantum Dot Light-Emitting Diodes -- 11.1 Quantum Dot Light-Emitting Diode Stability Research Status -- 11.2 Factors Affecting the Stability of Quantum Dot Light-Emitting Diodes -- 11.2.1 Quantum Dot Light-Emitting Layer -- 11.2.2 Hole Transport Layer -- 11.2.3 Electronic Transport Layer -- 11.2.4 Other Functional Layers -- 11.3 Quantum Dot Light-Emitting Diode Efficiency Decay Mechanism
11.4 Aging Mechanisms of QDLEDs -- 11.4.1 Positive Aging -- 11.4.2 Negative Aging -- 11.4.3 Electron Transport Layer -- 11.4.4 Hole Transport Layer -- 11.4.5 QDs Layer -- 11.5 Characterization Technologies for QDLEDs -- 11.5.1 Transient Electroluminescence -- 11.5.2 Electro-Absorption (EA) Spectroscopy -- 11.5.3 In-Situ EL-PL Measurement -- 11.5.4 Differential Absorption Spectroscopy -- 11.5.5 Displacement Current Measurement DCM Technology -- 11.6 Outlook -- References -- Chapter 12 Electron/Hole Injection and Transport Materials in Quantum Dot Light-Emitting Diodes -- 12.1 Introduction -- 12.2 Charge-Transport Mechanisms -- 12.3 Electron Transport Materials (ETMs) for QDLED -- 12.3.1 Metal-Doped ETMs -- 12.3.2 Metal Salt-Doped ETMs -- 12.3.3 Design of Composite Materials ETMs -- 12.3.4 Polymer-Modified ETMs -- 12.3.5 Inorganic Organic Hybrid ETMs -- 12.3.6 Double-Stacked ETMs -- 12.4 Electron Injection Materials for QDLED -- 12.5 Hole Transport Materials for QDLED -- 12.5.1 Doping of HTMs -- 12.5.2 Compositions of HTMS -- 12.5.3 New HTM Materials for QDLED -- 12.6 Hole Injection Materials for QDLED -- 12.7 Summary and Outlook -- References -- Chapter 13 Quantum Dot Industrial Development and Patent Layout -- 13.1 Introduction -- 13.2 Patent Layout -- 13.2.1 Nanosys -- 13.2.2 SAMSUNG -- 13.2.3 Nanoco -- 13.2.4 Najing Tech -- 13.2.5 CSOT -- 13.2.6 BOE -- 13.2.7 TCL -- 13.3 Summary and Outlook -- References -- Chapter 14 Patterning Techniques for Quantum Dot Light-Emitting Diodes (QDLED) -- 14.1 Introduction -- 14.2 Photolithography -- 14.3 Micro-Contact Transfer -- 14.4 Inkjet Printing -- 14.5 Other Patterning Techniques -- 14.6 Conclusion -- References -- Index -- EULA
Bibliography References -- Chapter 2 Colloidal Semiconductor Quantum Dot LED Structure and Principles -- 2.1 Basic Concepts -- 2.1.1 Color Purity -- 2.1.2 Solution Processability -- 2.1.3 Stability -- 2.1.4 Surface States of Quantum Dots -- 2.1.5 Energy Levels and Energy Bands -- 2.1.6 Metals, Semiconductors, and Insulators -- 2.1.7 Electrons and Holes -- 2.1.8 Fermi Distribution Function and Fermi Energy Level -- 2.1.9 Schottky Barrier -- 2.1.10 Energy Level Alignment -- 2.2 Colloidal Quantum Dot Light-Emitting Devices -- 2.2.1 The Basic Structure of QDLED -- 2.2.2 The Working Principle of QDLED
Notes Description based on publisher supplied metadata and other sources
Form Electronic book
ISBN 9783527845125
3527845127