Semiconducting Carbon Nanotube Networks for Thin-Film Transistors PDF Download
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Author: Thomas Egerer
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Book Description
Author: Thomas Egerer
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Book Description
Author: Axel Schindler
Publisher:
ISBN: 9783736971318
Category :
Languages : en
Pages : 156
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Book Description
This book describes the use of carbon nanotubes in form of randomly oriented networks in display technology. Carbon nanotubes can behave either like a metal or like a semiconductor and are used in this work as transparent conductive pixel electrodes as well as semiconducting channel in thin-film transistors. Monte-Carlo simulations examine more closely the percolation probabilities of metallic and semiconducting nanotubes. The experimental part covers methods to create stable surfactant suspensions from nanotube powders, simple and cost-effective low temperature deposition processes from liquid phase on glass and flexible plastic substrates and patterning procedures of the created films. Electrical and optical characterization gives insight on their performance. The realization of liquid crystal and OLED displays shows the compatibility of transparent carbon nanotube electrodes with production processes. Results of the semiconductor application are presented on a transistor level. The dependence of the transistor performance on the network density for both, mixed and highly semiconducting nanotubes is discussed.
Author: Theodor Schneller
Publisher: Springer Science & Business Media
ISBN: 3211993118
Category : Technology & Engineering
Languages : en
Pages : 801
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Book Description
This is the first text to cover all aspects of solution processed functional oxide thin-films. Chemical Solution Deposition (CSD) comprises all solution based thin- film deposition techniques, which involve chemical reactions of precursors during the formation of the oxide films, i. e. sol-gel type routes, metallo-organic decomposition routes, hybrid routes, etc. While the development of sol-gel type processes for optical coatings on glass by silicon dioxide and titanium dioxide dates from the mid-20th century, the first CSD derived electronic oxide thin films, such as lead zirconate titanate, were prepared in the 1980’s. Since then CSD has emerged as a highly flexible and cost-effective technique for the fabrication of a very wide variety of functional oxide thin films. Application areas include, for example, integrated dielectric capacitors, ferroelectric random access memories, pyroelectric infrared detectors, piezoelectric micro-electromechanical systems, antireflective coatings, optical filters, conducting-, transparent conducting-, and superconducting layers, luminescent coatings, gas sensors, thin film solid-oxide fuel cells, and photoelectrocatalytic solar cells. In the appendix detailed “cooking recipes” for selected material systems are offered.
Author: Janglin Chen
Publisher: Springer
ISBN: 9783540795681
Category : Technology & Engineering
Languages : en
Pages : 2700
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Book Description
This handbook offers a comprehensive description of the science, technology, economic and human interface factors associated with the displays industry. With expert contributions from over 150 international display professionals and academic researchers, it covers all classes of display device and discusses established principles, emergent technologies, and particular areas of application.
Author: Ali Javey
Publisher: Springer Science & Business Media
ISBN: 0387692851
Category : Technology & Engineering
Languages : en
Pages : 275
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Book Description
This book provides a complete overview of the field of carbon nanotube electronics. It covers materials and physical properties, synthesis and fabrication processes, devices and circuits, modeling, and finally novel applications of nanotube-based electronics. The book introduces fundamental device physics and circuit concepts of 1-D electronics. At the same time it provides specific examples of the state-of-the-art nanotube devices.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The present invention provides device components geometries and fabrication strategies for enhancing the electronic performance of electronic devices based on thin films of randomly oriented or partially aligned semiconducting nanotubes. In certain aspects, devices and methods of the present invention incorporate a patterned layer of randomly oriented or partially aligned carbon nanotubes, such as one or more interconnected SWNT networks, providing a semiconductor channel exhibiting improved electronic properties relative to conventional nanotubes-based electronic systems.
Author: Derrick Liu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Single-walled carbon nanotubes (SWNT), is a well known material which has been continuously investigated for its exceptionally unique optical, mechanical and electrical properties. The nanotubes, which can be semiconducting, metallic or semi-metallic offers a wide range of practical applications for electronics. Recent breakthroughs in studies focusing on the use of SWNT films for large area and cost effective macroelectronics represents the most realistic near-term goal of integrating SW\NT into real world devices. The focus of this study continues to build upon the use of SWNT for such devices while simultaneously investigating the effect of hybrid networks in hopes of fine tuning the electronic behavior. It has been known that the transport within SWNT is largely affected by its surrounding environment and doping can be achieved by means of charge transfer through adsorption of atoms or molecules. Recent investigations have demonstrated that polymer coating of the device may influence the electronic properties of SWNT such as the ability to control the polarity of the device. Further investigation of this phenomenon and practical utilization of hybrid networks may offer new breakthroughs for transistor and transparent conductors. We report an interesting case of photoresponsive organic transistors based on carbon nanotube fullerene composites, where a sparse, solution deposited single walled carbon nanotube network is intimately coated with fullerene molecules. Under correct network formation a reduction in drain current was observed under illumination. Transistors operated in the on-state resulted in drain currents on an order of magnitude of 10^-9 A, under illumination the on-state may be reversed, rendering these devices insulating with drain currents of 10^-12 A. It is believed that the fundamental mechanism for this phenomenon is heavily influenced by the selective formation of fullerene molecules along the carbon nanotube surface/junctions. This results in a two-fold process of exciton splitting and annihilation of free carriers upon recombination followed by subsequent charge trapping which effectively screens the gate voltage. The negative photoresponsivity can be observed even under low voltage operations. High junction resistances which continue to plague the development of highly conductive transparent carbon nanotube networks can be overcome through fine tuning of electronic behavior. Using highly electronegative fluorofullerenes, semiconducting nanotubes can be heavily doped, improving charge transport along the tube while reducing the junction resistance in contact with metallic tubes. Sheet resistances at high transparencies surpassing some of the best reported literature values can be obtained. Combining the largely solution processable approach and the effective tuning of carbon nanotube films through hybrid networks, one may gain additional insight in the field of nanoscaled science and of carbon nanotubes while opening new possibilities in the field of carbon nanotube electronics.
Author: Yan Li
Publisher: Springer
ISBN: 3030127001
Category : Science
Languages : en
Pages : 340
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Book Description
The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Author: H.-S. Philip Wong
Publisher: Cambridge University Press
ISBN: 0521519055
Category : Science
Languages : en
Pages : 263
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Book Description
The first introductory textbook to explain the properties and performance of practical nanotube devices and related applications.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This disclosure provides systems, methods, and apparatus for flexible thin-film transistors. In one aspect, a device includes a polymer substrate, a gate electrode disposed on the polymer substrate, a dielectric layer disposed on the gate electrode and on exposed portions of the polymer substrate, a carbon nanotube network disposed on the dielectric layer, and a source electrode and a drain electrode disposed on the carbon nanotube network.
