This book can be useful for an academic course on nanoscience and nanotechnology. This book is very useful for the beginner in nanotechnology and nanoelectronics. The book is divided into seven chapters:
The first chapter contains the introduction of nanodevices, definition and classification of nanostructures materials and nanodevices.
The second chapter contains the detailed summary of the semiconductors and various semiconductor nanodevices. This will be helpful to study the changes occur at the nanoscale in bulk materials or bulk devices when they approach the nanoscale.
The third chapter contains the introduction, principles, and applications of various quantum confined structures and devices.
The fourth chapter gives the idea about the molecular junction, single molecular devices and their applications in other devices as an incorporated structures or hybrid applications. It contains the overview of natural and artificial nanodevices. It has given the knowledge of molecular nanoelectronics.
The fifth chapter contains the overview and advanced knowledge of natural and artificial nanosensors. It explains the various nanosensors and their applications.
Table of Contents
CHAPTER 1: NANODEVICES-AN INTRODUCTION
1.1 Nanodevices
1.1.1 Classification of nanodevices
1.1.2 Nano ordered Material systems
CHAPTER 2: SEMICONDUCTOR NANODEVICES
2.1 Introduction to Semiconductors
2.2 P-N junction diode
2.3 Bipolar junction Transistors (BJTs): NPN and PNP transistors
2.4 Field effect transistor (FETs)
2.4.1 Junction FET
2.4.2 Metal Oxide Semiconductor FET (MOSFET)
2.5 Nanoscale MOSFET
2.5.1 Carbon nanotube FET (CNFET)
2.6 Metal-Semiconductor junctions: Ohmic and Schottky
2.6.1 Ohmic contact
2.6.2 Schottky contact
2.6.3 Schottky devices
2.7 Single Electron devices (SEDs)
2.7.1 Single Electron Transistor (SET)
2.7.2 Single Electron Dynamics
2.8 Resonant Tunnelling Transistor (RTT)
2.9 Micro and Nano electromechanical systems
2.9.1 Microelectromechanical systems (MEMS)
2.9.2 Nanoelectromechanical systems (NEMS)
CHAPTER 3: QUANTUM STRUCTURES AND DEVICES
3.1 Quantum Confined Structures
3.2 Quantum dots
3.3 Quantum wire
3.4 Quantum Well (QWs)
CHAPTER 4: NANOMACHINES AND MOLECULAR NANODEVICES
4.1 Introduction
4.2 Application of Nanomachines and Molecular nanodevices
CHAPTER 5: NANOSENSORS
5.1 Introduction
5.2 Types of Nanosensors
5.2.1 Catalytic type gas sensor
5.2.2 MOS type gas sensing device or sensor
5.2.3 Electrochemical gas sensing device or sensor
5.2.4 Protein based biosensors
5.3 Applications by function or operation
Objectives and Topics
This work aims to provide a fundamental understanding of the operational principles, classification, and diverse applications of nanodevices and nanomaterials in modern technology. It explores the transition from bulk materials to the nanoscale, where quantum effects dominate, and examines the resulting capabilities for advanced electronic and sensing devices.
- Classification and physics of nanostructures and nanodevices
- Operating principles of semiconductor, single-electron, and quantum-confined devices
- Fabrication and characteristics of ohmic and Schottky contacts
- Design and application of MEMS, NEMS, and molecular nanomachines
- Advanced gas sensing technologies and their integration into modern circuitry
Excerpt from the Book
2.6 Metal-Semiconductor junctions: Ohmic and Schottky
The fundamental difference in the band structures between a metal and a semiconductor and the interface physics are mainly governed by the positions of fermi levels at both sides before they are brought into contact. There are two different behaviours in terms of the charge transport properties across the interface: (i) Schottky and (ii) ohmic contacts.
The forward current and reverse current is due to the minority charge carriers, diffusing into depletion region in p-n junction diode. An ideal p-n junction has ideality factor about ~ 1-2. The forward current and reverse current is due to the majority carriers that rise above the barrier, respectively in Schottky diode. P-N junction diode is temperature dependent while Schottky diode is not much depedent on temperature. The ideality factor of Schottky diode is about ~1.
Summary of Chapters
CHAPTER 1: NANODEVICES-AN INTRODUCTION: This chapter defines nanodevices and classifies them based on physical phenomena such as ballistic transport, tunneling, and electrostatics.
CHAPTER 2: SEMICONDUCTOR NANODEVICES: Covers semiconductor physics at the nanoscale, including diodes, BJTs, FETs, and advanced structures like single-electron devices and NEMS.
CHAPTER 3: QUANTUM STRUCTURES AND DEVICES: Explains quantum confinement effects and details specific quantum structures such as dots, wires, and wells.
CHAPTER 4: NANOMACHINES AND MOLECULAR NANODEVICES: Focuses on molecular-scale electronics, including molecular diodes, switches, motors, and DNA-based nanodevices.
CHAPTER 5: NANOSENSORS: Details various types of nanosensors, including catalytic, MOS, and electrochemical types, emphasizing their function, safety, and application in sensing gases.
Keywords
Nanotechnology, Nanodevices, Semiconductors, MOSFET, Schottky Diode, Single Electron Transistor, Quantum Dots, Quantum Well, NEMS, MEMS, Molecular Electronics, Nanosensors, Gas Sensing, Nanorobotics, Nanoscale Scaling
Frequently Asked Questions
What is the primary focus of this book?
The book provides a comprehensive overview of nanodevices, covering their basic physical principles, classification, fabrication methods, and their wide-ranging applications in modern electronics and sensing.
What are the central themes discussed in the work?
Key themes include semiconductor nanostructures, quantum-confined devices, molecular-scale machines, and advanced sensor technologies such as MEMS and NEMS.
What is the primary research goal?
The goal is to provide a foundational understanding of how nanomaterials behave differently from bulk materials and how these unique properties are leveraged to engineer advanced functional devices.
What scientific methods are explained in the text?
The text discusses various fabrication and characterization methods, including lithography, tunneling mechanisms, and electrical measurement techniques like I-V and C-V characterization.
What topics are covered in the main section of the book?
The main sections cover semiconductor device physics (diodes/transistors), quantum structures, molecular-level electronics, and the functional design of various nanosensors for environmental and industrial use.
Which keywords best characterize this work?
The work is characterized by terms such as nanotechnology, semiconductors, quantum confinement, MOSFET, molecular electronics, and nanosensors.
What is the role of the "island" in single-electron devices?
The island acts as a central conductive region, typically a quantum dot, where the tunneling of individual electrons is controlled to enable operations like those found in single-electron transistors.
How do catalytic gas sensors function?
They use a detector element sensitive to flammable gases and an inert compensator element, often integrated into a Wheatstone bridge circuit, to detect gas concentrations based on changes in electrical resistance.
- Quote paper
- Dr. Jaysukh Markna (Author), Tulshi Shiyani (Author), 2018, Nanodevices. Principle and Applications, Munich, GRIN Verlag, https://www.grin.com/document/490989
