ZnO Nanostructures Fabrication and Applications 1 0 0 P F 8- 3 2 0 1 0 8 8 7 1 8 7 9 9/ 3 0 1 0. 1 oi: d g | or c. s s.r b u p p:// htt n o 7 1 0 2 e n u J 1 2 n o d e h s bli u P View Online Nanoscience & Nanotechnology Series Editor-in-Chief: Paul O’Brien CBE FREng FRS, University of Manchester, UK 1 0 Series Editors: 0 P F Xiaogang Liu, National University of Singapore, Singapore 8- 3 Ralph Nuzzo, University of Illinois at Urbana-Champaign, USA 2 0 1 Joao Rocha, University of Aveiro, Portugal 0 8 8 7 1 8 Titles in the series: 7 9 9/ 1: Nanotubes and Nanowires 3 0 1 2: Fullerenes: Principles and Applications 0. oi:1 3: Nanocharacterisation d 4: Atom Resolved Surface Reactions: Nanocatalysis g | or 5: Biomimetic Nanoceramics in Clinical Use: From Materials to sc. Applications s.r b 6: Nanofluidics: Nanoscience and Nanotechnology u p p:// 7: Bionanodesign: Following Nature’s Touch htt 8: Nano-Society: Pushing the Boundaries of Technology on 9: Polymer-based Nanostructures: Medical Applications 7 1 10: Metallic and Molecular Interactions in Nanometer Layers, Pores and 0 2 e Particles: New Findings at the Yoctolitre Level n u J 11: Nanocasting: A Versatile Strategy for Creating Nanostructured 1 n 2 Porous Materials o d 12: Titanate and Titania Nanotubes: Synthesis, Properties and Applications e sh 13: Raman Spectroscopy, Fullerenes and Nanotechnology ubli 14: Nanotechnologies in Food P 15: Unravelling Single Cell Genomics: Micro and Nanotools 16: Polymer Nanocomposites by Emulsion and Suspension 17: Phage Nanobiotechnology 18: Nanotubes and Nanowires, 2nd Edition 19: Nanostructured Catalysts: Transition Metal Oxides 20: Fullerenes: Principles and Applications, 2nd Edition 21: Biological Interactions with Surface Charge Biomaterials 22:NanoporousGold:FromanAncientTechnologytoaHigh-TechMaterial 23: Nanoparticles in Anti-Microbial Materials: Use and Characterisation 24: Manipulation of Nanoscale Materials: An Introduction to Nanoarchitectonics 25:TowardsEfficientDesigningofSafeNanomaterials:InnovativeMerge of Computational Approaches and Experimental Techniques 26: Polymer–Graphene Nanocomposites 27: Carbon Nanotube-Polymer Composites 28: Nanoscience for the Conservation of Works of Art 29: Polymer Nanofibers: Building Blocks for Nanotechnology View Online 30: Artificial Cilia 31: Nanodiamond 32: Nanofabrication and its Application in Renewable Energy 33: Semiconductor Quantum Dots: Organometallic and Inorganic Synthesis 34: Soft Nanoparticles for Biomedical Applications 01 35: Hierarchical Nanostructures for Energy Devices 0 FP 36: Microfluidics for Medical Applications 38- 37: Nanocharacterisation, 2nd Edition 2 10 38: Thermometry at the Nanoscale: Techniques and Selected Applications 0 88 39: Nanoceramics in Clinical Use: From Materials to Applications, 7 81 2nd Edition 7 9/9 40: Near-infrared Nanomaterials: Preparation, Bioimaging and 3 0 Therapy Applications 1 10. 41: Nanofluidics, 2nd Edition doi: 42: Nanotechnologies in Food, 2nd Edition g | 43: ZnO Nanostructures: Fabrication and Applications or c. s s.r b u p p:// htt n o 7 1 0 2 e n u J 1 2 n o d e h s bli u P How to obtain future titles on publication: Astandingorderplanisavailableforthisseries.Astandingorderwillbring delivery of each new volume immediately on publication. 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Forfurtherinformationseeourwebsiteatwww.rsc.org PrintedintheUnitedKingdombyCPIGroup(UK)Ltd,Croydon,CR04YY,UK 7 0 0 P F Preface 8- 3 2 0 1 0 8 8 7 1 8 7 9 9/ 3 0 0.1 Nanoscience andnanotechnology have aroused tremendous and worldwide 1 oi: concerns in recent decades. In the early 1990s, developments in physics g | d made it possible to realise revolutionary progress on characterization or approaches in nanoscale, which refreshed researchers’ understanding c. s.rs towards nanomaterials. Along with in-depth exploration of nanomaterial ub properties,andextensiveattemptsontheirsynthesismethods,nanoscience p p:// and nanotechnology were gradually developed into a cutting-edge inter- htt disciplinary research field. n o Among the various material candidates for the construction of nano- 7 01 structures,thegrowthofresearchinterestin3rdgenerationsemiconducting 2 e materials, such as SiC, GaN, AlN and ZnO has brought a tremendous n u 1 J impetus to the high-tech industry from both a scientific technology and 2 n industry strategies perspective. A series of physical superiorities to the 1st o d (Ge,Si)and2nd(GaAs,InSb)generationsemiconductingmaterials,suchas e h s electricalpropertiesandopticalpropertieshavebeenhighlighted,especially bli u the wide band gap which is suitable for high-frequency, high-power elec- P tronic devices and circuits. Recently, studies on ZnO, which is one of the most important3rd generation semiconductors, has entered a new stage of comprehensive use due to its multi-functional characteristics. Since 2000, my group has been devoted to ZnO nanomaterials. Recently, along with the highly developed multi-disciplinary fusion and integration, considerableprogresshasbeenachievedinbothfundamentalresearchand technique applications of ZnO nanostructures. To date, we have published nearly400peer-reviewedjournalpapersandauthoredmorethan40patents in this field, which has significantly broadened the research and application areas. This book is mainly based on the published works in my group. It covers our research results for ZnO nanostructures ranging from fabrication to Nanoscience&NanotechnologySeriesNo.43 ZnONanostructures:FabricationandApplications ByYueZhang rYueZhang2017 PublishedbytheRoyalSocietyofChemistry,www.rsc.org vii View Online viii Preface characterisation and from prototype applications to practical applications. Certainly,theworldwidemilestoneachievementsinthefieldhavealsobeen introduced. Therefore, this book could serve as a reference book for stu- dents, researchers or other relevant personnel to promote the development of this field. This book is divided into ten chapters, and overall guided by 07 Prof. Yue Zhang. The detailedchapter theme and co-authorsare as follows: 0 P Chapter 1, Overview; Chapter 2, Designing and Controllable Fabrication F 38- (Qingliang Liao); Chapter 3, Property Characterisation and Optimisation 2 10 (Xu Sun, Yanwei Shen, Pei Lin, Zhuo Kang); Chapter 4, Electromechanical 0 88 Devices (Zheng Zhang); Chapter 5, Photoelectrical Devices (Zhiming Bai, 7 81 Yanwei Shen, Pei Lin, Guangjie Zhang); Chapter 6, Photoelectrochemical 7 9/9 Devices(ZhuoKang,ZhimingBai);Chapter7,BiosensingDevices(YuSong, 3 0 Zhuo Kang); Chapter 8, Self-powered Devices (Zheng Zhang, Zhiming Bai); 1 10. Chapter 9, Service Behaviour (Peifeng Li, Qi Zhang); Chapter 10, Field oi: Emission and Electromagnetic Wave Absorption (Qingliang Liao). d g | I would like to thank my current and former group members, as well as or c. collaborators who have dedicated themselves to the development of ZnO s s.r nanoscienceaswellasitsapplications.Iwouldalsoliketoacknowledgethe b u p strongfinancialsupportfromtheMinistryofScienceandTechnologyofThe http:// People’s Republic of China, the Ministry of Education of The People’s n Republic of China, the National Natural Science Foundation of China, the o 7 StateAdministrationofForeignExpertsAffairs,thePeople’sGovernmentof 1 0 2 Beijing Municipality. e n u Lastly and most importantly, I thank my family for their continuous J 21 understanding and support. The research could not be carried out without on their strong support. d e h s bli Yue Zhang u P University of Science and Technology Beijing, Beijing, China 9 0 0 P F Contents 8- 3 2 0 1 0 8 8 7 1 8 7 9 9/ Chapter 1 Overview 1 3 0 1 Yue Zhang 0. 1 oi: d 1.1 Introduction of Nanomaterials 1 g | or 1.2 Introduction of ZnO Nanomaterials 3 c. s.rs References 5 b u p p:// htt Chapter 2 Designing and Controllable Fabrication 8 n 7 o Qingliang Liao and Yue Zhang 1 0 2 ne 2.1 Vapour Phase Deposition Methods 8 u J 1 2.1.1 Chemical Vapour Deposition by Thermal 2 on Evaporation 9 d he 2.1.2 Thermal Evaporation Chemical s bli Vapour Deposition with Carbothermal u P Reduction 17 2.1.3 Metal–organic Chemical Vapour Deposition 20 2.1.4 Thermal Evaporation Physical Vapour Deposition 21 2.1.5 Pulsed Laser Deposition 23 2.1.6 Molecular Beam Epitaxy 24 2.1.7 Magnetron Sputtering 25 2.2 Liquid-phase Reaction Methods 26 2.2.1 Liquid-phase Direct Reaction Method 27 2.2.2 Electrochemical Deposition 33 Nanoscience&NanotechnologySeriesNo.43 ZnONanostructures:FabricationandApplications ByYueZhang rYueZhang2017 PublishedbytheRoyalSocietyofChemistry,www.rsc.org ix View Online x Contents 2.2.3 Template Method 34 2.2.4 Sol–gel Method 35 2.3 Patterned Growth of ZnO Nanostructures 38 References 48 9 00 Chapter 3 Property Characterisation and Optimisation 60 P 8-F Xu Sun, Yanwei Shen, Pei Lin, Zhuo Kang and 3 2 Yue Zhang 0 1 0 8 8 7 3.1 Electronic Properties 60 1 8 7 3.1.1 Electronic Structure 60 9 9/ 3 3.1.2 Electronic Structure Modulation 61 0 1 0. 3.1.3 Influence of Defects 65 1 oi: 3.2 Electrical Properties 70 d g | 3.2.1 Electrical Transport Properties 71 or c. 3.2.2 Ohmic and Schottky Contacts 78 s bs.r 3.3 Magnetic Properties 83 u p://p 3.4 Mechanical Properties 85 htt 3.4.1 Elastic Properties 85 on 3.4.2 High-pressure Induced Phase 7 01 Transition 89 2 ne 3.5 Optical Properties 90 u 1 J 3.5.1 Photoluminescence 90 2 n 3.5.2 Stimulated Emission and Waveguide o ed Properties 93 h s bli 3.5.3 Non-linear Optical Properties 96 u P 3.6 Piezoelectric and Dielectric Properties 96 3.6.1 Origin of Piezoelectricity in ZnO 96 3.6.2 Piezoresponse Force Microscopy 98 3.6.3 Piezoelectric Property Enhancement 100 3.6.4 Dielectric Properties 102 3.7 Photocatalytic Properties of ZnO Nanostructures 103 References 107 Chapter 4 Electromechanical Devices 124 Zheng Zhang and Yue Zhang 4.1 Individual Nanostructure-based Electromechanical Devices 124 4.1.1 Individual Nanowire-based Mess Sensor 124 4.1.2 Individual Nanostructure-based Strain Sensor 125 4.1.3 Individual Doped Nanostructure-based Strain Sensors 129