[内容简介]
Atomic layer deposition, formerly called atomic layer epitaxy, was developed in the 1970s to meet the needs of producing high-quality, large-area fl at displays with perfect structure and process controllability. Nowadays, creating nanomaterials and producing nanostructures with structural perfection is an important goal for many applications in nanotechnology. As ALD is one of the important techniques which offers good control over the surface structures created, it is more and more in the focus of scientists. The book is structured in such a way to fi t both the need of the expert reader (due to the systematic presentation of the results at the forefront of the technique and their applications) and the ones of students and newcomers to the fi eld (through the first part detailing the basic aspects of the technique).
This book is a must-have for all Materials Scientists, Surface Chemists, Physicists, and Scientists in the Semiconductor Industry.
[目录]
Foreword V
Preface XVII
Introduction XXI
List of Contributors XXXIII
Part One Introduction to ALD 1
1 Theoretical Modeling of ALD Processes 3
Charles B. Musgrave
1.1 Introduction 3
1.2 Overview of Atomistic Simulations 3
1.3 Calculation of Properties Using Quantum Simulations 10
1.4 Prediction of ALD Chemical Mechanisms 13
1.5 Example of a Calculated ALD Mechanism: ALD of Al2O3 Using TMA and Water 16
References 20
2 Step Coverage in ALD 23
Sovan Kumar Panda and Hyunjung Shin
2.1 Introduction 23
2.2 Growth Techniques 24
2.3 Step Coverage Models in ALD 28
2.4 Experimental Verifications of Step Coverage Models 34
2.5 Summary 38
References 38
3 Precursors for ALD Processes 41
Matti Putkonen
3.1 Introduction 41
3.2 General Requirements for ALD Precursors 42
3.3 Metallic Precursors for ALD 42
3.4 Nonmetal Precursors for ALD 49
3.5 Conclusions 50
References 51
4 Sol–Gel Chemistry and Atomic Layer Deposition 61
Guylhaine Clavel, Catherine Marichy, and Nicola Pinna
4.1 Aqueous and Nonaqueous Sol–Gel in Solution 61
4.2 Sol–Gel and ALD: An Overview 63
4.3 Mechanistic and In Situ Studies 70
References 76
5 Molecular Layer Deposition of Hybrid Organic–Inorganic Films 83
Steven M. George, B. Yoon, Robert A. Hall, Aziz I. Abdulagatov, Zachary M. Gibbs, Younghee Lee, Dragos Seghete, and Byoung H. Lee
5.1 Introduction 83
5.2 General Issues for MLD of Hybrid Organic–Inorganic Films 85
5.3 MLD Using Trimethylaluminum and Ethylene Glycol in an AB Process 87
5.4 Expansion to an ABC Process Using Heterobifunctional and Ring-Opening Precursors 89
5.5 Use of a Homotrifunctional Precursor to Promote Cross-Linking in an AB Process 93
5.6 Use of a Heterobifunctional Precursor in an ABC Process 96
5.7 MLD of Hybrid Alumina–Siloxane Films Using an ABCD Process 99
5.8 Future Prospects for MLD of Hybrid Organic–Inorganic Films 103
References 106
6 Low-Temperature Atomic Layer Deposition 109
Jens Meyer and Thomas Riedl
6.1 Introduction 109
6.2 Challenges of LT-ALD 110
6.3 Materials and Processes 113
6.4 Toward Novel LT-ALD Processes 115
6.5 Thin Film Gas Diffusion Barriers 117
6.6 Encapsulation of Organic Electronics 119
6.7 Conclusions 125
References 125
7 Plasma Atomic Layer Deposition 131
Erwin Kessels, Harald Profijt, Stephen Potts, and Richard van de Sanden
7.1 Introduction 131
7.2 Plasma Basics 134
7.3 Plasma ALD Configurations 139
7.4 Merits of Plasma ALD 142
7.5 Challenges for Plasma ALD 149
7.6 Concluding Remarks and Outlook 153
References 154
Part Two Nanostructures by ALD 159
8 Atomic Layer Deposition for Microelectronic Applications 161
Cheol Seong Hwang
8.1 Introduction 161
8.2 ALD Layers for Memory Devices 162
8.3 ALD for Logic Devices 180
8.4 Concluding Remarks 187
References 188
9 Nanopatterning by Area-Selective Atomic Layer Deposition 193
Han-Bo-Ram Lee and Stacey F. Bent
9.1 Concept of Area-Selective Atomic Layer Deposition 193
9.2 Change of Surface Properties 195
9.3 Patterning 205
9.4 Applications of AS-ALD 215
9.5 Current Challenges 216
References 218
10 Coatings on High Aspect Ratio Structures 227
Jeffrey W. Elam
10.1 Introduction 227
10.2 Models and Analysis 228
10.3 Characterization Methods for ALD Coatings in High Aspect Ratio Structures 230
10.4 Examples of ALD in High Aspect Ratio Structures 232
10.5 Nonideal Behavior during ALD in High Aspect Ratios 242
10.6 Conclusions and Future Outlook 245
References 246
11 Coatings of Nanoparticles and Nanowires 251
Hong Jin Fan and Kornelius Nielsch
11.1 ALD on Nanoparticles 251
11.2 Vapor–Liquid–Solid Growth of Nanowires by ALD 254
11.3 Atomic Layer Epitaxy on Nanowires 256
11.4 ALD on Semiconductor NWs for Surface Passivation 257
11.5 ALD-Assisted Formation of Nanopeapods 258
11.6 Photocorrosion of Semiconductor Nanowires Capped by ALD Shell 260
11.7 Interface Reaction of Nanowires with ALD Shell 261
11.8 ALD ZnO on NWs/Tubes as Seed Layer for Growth of Hyperbranch 265
11.9 Conclusions 267
References 268
12 Atomic Layer Deposition on Soft Materials 271
Gregory N. Parsons
12.1 Introduction 271
12.2 ALD on Polymers for Passivation, Encapsulation, and Surface Modification 274
12.3 ALD for Bulk Modification of Natural and Synthetic Polymers and Molecules 279
12.4 ALD for Polymer Sacrificial Templating: Membranes, Fibers, and Biological and Optical Structures 280
12.5 ALD Nucleation on Patterned and Planar SAMs and Surface Oligomers 283
12.6 Reactions during Al2O3 ALD on Representative Polymer Materials 286
12.7 Summary 291
References 292
13 Application of ALD to Biomaterials and Biocompatible Coatings 301
Mato Knez
13.1 Application of ALD to Biomaterials 302
13.2 Biocompatible Coatings 317
13.3 Summary 320
References 321
14 Coating of Carbon Nanotubes 327
Catherine Marichy, Andrea Pucci, Marc-Georg Willinger, and Nicola Pinna
14.1 Introduction 327
14.2 Purification and Surface Functionalization of Carbon Nanotubes 328
14.3 Decoration/Coating of Carbon Nanotubes by Solution Routes 329
14.4 Decoration/Coating of Carbon Nanotubes by Gas-Phase Techniques 330
14.5 Atomic Layer Deposition on Carbon Nanotubes 331
14.6 Coating of Large Quantity of CNTs by ALD 337
14.7 ALD Coating of Other sp2-Bonded Carbon Materials 338
14.8 Conclusions 340
References 340
15 Inverse Opal Photonics 345
Davy P. Gaillot and Christopher J. Summers
15.1 Introduction and Background 345
15.2 Properties of Three-Dimensional Photonic Band Structures 349
15.3 Large-Pore and Non-Close-Packed Inverse Opals 352
15.4 Experimental Studies 353
15.5 Tunable PC Structures 366
15.6 Summary 369
References 371
16 Nanolaminates 377
Adriana V. Szeghalmi and Mato Knez
16.1 Introduction 377
16.2 Optical Applications 377
16.3 Thin Film Encapsulation 383
16.4 Applications in Electronics 386
16.5 Copper Electroplating Applications 392
16.6 Solid Oxide Fuel Cells 393
16.7 Complex Nanostructures 394
16.8 Summary 395
References 396
17 Challenges in Atomic Layer Deposition 401
Markku Leskelä
17.1 Introduction 401
17.2 Metals 402
17.3 Nonmetal Elements 404
17.4 Binary Compounds 406
17.5 Ternary and Quaternary Compounds 414
17.6 Nucleation 415
17.7 Conclusions 416
References 417
Index 423