Coaxial Lithography (eBook)

Tuncay Ozel received his BS and MS degrees in physics from Bilkent University, Turkey. He completed his PhD studies in the department of materials science and engineering at Northwestern University working under the supervision of Chad Mirkin. Ozel co-invented a technique, termed coaxial lithography (COAL), bridging templated electrochemical synthesis and lithography to generate coaxial nanowires in a parallel fashion. He is currently working as a postdoctoral fellow at Harvard University in the department of chemistry and chemical biology (host: Daniel Nocera). To list some of his scientific contributions, he has 25 SCI papers, given 15 presentations, and co-invented 4 patents.

Supervisor’s Foreword 7
Abstract 9
Parts of this thesis have been published in the following journal articles: 11
Acknowledgments 12
Contents 14
List of Figures 16
1 Introduction to Plasmonics, Templated Electrochemical Synthesis, and On-Wire Lithography 29
1.1 Motivation and Introduction 29
1.2 Plasmonic Properties of Metal Nanoparticles 30
1.3 Electrochemical Synthesis of One-Dimensional Structures in Templates 33
1.3.1 Single and Multisegmented Nanowire Synthesis 33
1.3.2 On-Wire Lithography 34
References 36
2 1D Nanowire Synthesis: Extending the OWL Toolbox with Semiconductors to Explore Plasmon-Exciton Interactions in the Form of Long-Range Optical Nanoscale Rulers 39
2.1 Introduction 39
2.2 Results and Discussion 42
2.3 Conclusions 47
2.4 Methods and Materials 48
2.4.1 Materials and Instruments 48
2.4.2 Nanowire Synthesis 48
2.4.3 Discrete Dipole Approximation Simulations 49
References 51
3 Hybrid Semiconductor Core-Shell Nanowires with Tunable Plasmonic Nanoantennas 55
3.1 Introduction 55
3.2 Results and Discussion 56
3.3 Conclusions 64
3.4 Methods and Materials 64
3.4.1 Materials and Instruments 64
3.4.2 Nanowire Synthesis 64
3.4.3 Electrical Characterization 65
3.4.4 Finite-Difference Time-Domain Simulations 67
References 67
4 2D Nanowire Synthesis: Invention of Coaxial Lithography 70
4.1 Introduction 70
4.2 Results and Discussion 72
4.3 Conclusions 79
4.4 Methods and Materials 80
4.4.1 Materials and Instruments 80
4.4.2 Nanowire Synthesis 80
4.4.3 Electrical Characterization 84
4.4.4 Finite-Difference Time-Domain Simulations 85
4.4.5 Elemental Mapping 85
References 87
5 Solution Dispersible Metal Nanorings: Independent Control of Architectural Parameters and Materials Generality 89
5.1 Introduction 89
5.2 Results and Discussion 90
5.3 Conclusions 96
5.4 Methods and Materials 97
5.4.1 Materials and Instruments 97
5.4.2 Nanoring Synthesis 98
References 99
6 Conclusions and Outlook on Templated Electrochemical Synthesis Using Coaxial Lithography 102
6.1 Conclusions 102
6.2 Light-Matter Interactions 103
6.2.1 Synthesis of Plasmonic Nanostructures Within and Around Semiconductor Nanowires 103
6.2.2 Use of COAL Enabled Structures in Photocurrent Mapping Studies 105
6.2.3 Integration of Plasmonic Structures Within Core-Shell Semiconductor Nanowires that Do not Block the Electron-Hole Flow 106
6.2.4 Synthesis of Complex Metal Nanostructures for Plasmonics Studies 107
6.3 Nanoparticle Assembly 107
6.4 Semiconductor Device Applications 109
6.5 Nanowire Biomimetic Probe Preparation 110
6.6 Photocatalysis 110
References 112
CURRICULUM VITAE 113