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基本説明
Shows how to optimize device performance using organic thin film transistors to create the next generation of low cost, lightweight, unbrekable and flexible electronics.
Full Description
Research on organic electronics (or plastic electronics) is driven by the need to create systems that are lightweight, unbreakable, and mechanically flexible. With the remarkable improvement in the performance of organic semiconductor materials during the past few decades, organic electronics appeal to innovative, practical, and broad-impact applications requiring large-area coverage, mechanical flexibility, low-temperature processing, and low cost. Thus, organic electronics appeal to a broad range of electronic devices and products including transistors, diodes, sensors, solar cells, lighting, displays, and electronic identification and tracking devices A number of commercial opportunities have been identified for organic thin film transistors (OTFTs), ranging from flexible displays, electronic paper, radio-frequency identification (RFID) tags, smart cards, to low-cost disposable electronic products, and more are continually being invented as the technology matures. The potential applications for "plastic electronics" are huge but several technological hurdles must be overcome. In many of these applications, transistor serves as a fundamental building block to implement the necessary electronic functionality. Hence, research in organic thin film transistors (OTFTs) or organic field effect transistors (OFETs) is eminently pertinent to the development and realization of organic electronics. This book presents a comprehensive investigation of the production and application of a variety of polymer based transistor devices and circuits. It begins with a detailed overview of Organic Thin Film Transistors (OTFTs) and discusses the various possible fabrication methods reported so far. This is followed by two major sections on the choice, optimization and implementation of the gate dielectric material to be used. Details of the effects of processing on the efficiency of the contacts are then provided. The book concludes with a chapter on the integration of such devices to produce a variety of OTFT based circuits and systems. The key objective is to examine strategies to exploit existing materials and techniques to advance OTFT technology in device performance, device manufacture, and device integration. Finally, the collective knowledge from these investigations facilitates the integration of OTFTs into organic circuits, which is expected to contribute to the development of new generation of all-organic displays for communication devices and other pertinent applications. Overall, a major outcome of this work is that it provides an economical means for organic transistor and circuit integration, by enabling the use of a well-established PECVD infrastructure, while not compromising the performance of electronics. The techniques established here are not limited to use in OTFTs only; the organic semiconductor and SiNx combination can be used in other device structures (e.g., sensors, diodes, photovoltaics). Furthermore, the approach and strategy used for interface optimization can be extended to the development of other materials systems.
Contents
1. Introduction
1.1 Organic Electronics: History and Market
2. Organic Thin Film Transistors (OTFT): Overview
2.1 Organic Semiconductor Overview
2.2 OTFT Operation and Characteristics
2.3 OTFT Device Architecture
2.4 OTFT Device Material Selection
2.5 Summary
3. OTFT Integration Strategies
3.1 Technological Challenge inOTFT Integration
3.2 Overview of Processing and Fabrication Techniques
3.3 OTFT Fabrication Schemes
3.4 Summary
4. Gate Dielectric by Plasma Enhanced Chemical Vapor Deposition (PECVD)
4.1 Overview of Gate Dielectrics
4.2 Experimental Details and Characterization Methods
4.3 Material Characterization of PECVD SiNx Films
4.4 Electrical Characterization of OTFTs with PECVD Gate Dielectrics
4.5 Summary
5. Dielectric Interface Engineering
5.1 Background
5.2 Experimental Details
5.3 Impact of Dieletric Surface Treatments
5.4 Impact of Oxygen Plasma Exposure Conditions
5.5 Summary
6. Contact Interface Engineering
6.1 Background
6.2 Experimental Details
6.3 Impact of Contact Surface Treatment by Thiol SAM
6.4 Impact of Execution Sequence of Surface Treatment
6.5 Summary
7. OTFT Circuits and Systems
7.1 OTFT Requirements for Circuit Applications
7.2 Applications
7.3 Circuit Demonstration
7.4 Summary, Contributions, and Outlook
8. Outlook and Future Challenges
