Stable lowvoltage operation topgate organic fieldeffect. The molecules consist of the same thieno2,3b1benzothiophene building blocks, connected by different. It describes the latest understanding of the physics of charge transport in singlecrystal devices, small molecule oligomers, and conjugated polymer devices. Anodization is a promising technique to form highk dielectrics for lowpower organic field effect transistor ofet applications. Characterization and design of organic fieldeffect. Organic fieldeffect transistors 1st edition by zhenan bao and publisher routledge. Faculty patents electrical and computer engineering. Flexible porous organic polymer membranes for protonic field. A conjugated polymer containing a b plastic electronics. However, an organic transistor, fabricated on flexible plastics, should be able to conform to and output a high degree of information from a threedimensional structure. Integrated circuits consisting of more than 300 fieldeffect transistors are demonstrated.
In this chapter, the organic fieldeffect transistor in terms of device physics, organic. Apr 23, 2015 organic field effect transistors ofets are attracting more and more attention due to their potential applications in lowcost, largearea and flexible electronic products. Organic semiconductors oscs are the key components of ofets and basically determine the device performance. Organic field effect transistors ofets, which are highly sought after for. However, further development toward challenging frequency ranges, for a field accustomed to slow electronic devices, has to be addressed with suitable device design and measurements methodologies.
May 19, 2011 canek fuentes, a researcher at georgia tech and the center for organic photonics and electronics describes the usages for organic field effect transistors o. A thin film is deposited onto a semicondctor, which lies on a nonconducting substrate, which varies according to the application for which the transistor. These semiconductors are divided into small molecules and higher molecular weight polymeric semiconductors. To test the ability of organic transistors to read data, an organic field effect transistor was placed in a common source configuration. The idea got practical after the pioneering work of shockley in the early 1950s. Organic field effect transistor linkedin slideshare. Organic fieldeffect transistors xiii, conference details. Mar 10, 2016 charge mobility, extracted from currentvoltage curves, is an important parameter for evaluating the performance of organic fieldeffect transistors. What are the types of field effect transistors working. Exploring one class of otfts, organic fieldeffect transistors provides a comprehensive, multidisciplinary survey of the present theory, charge transport studies, synthetic methodology, materials characterization, and current applications of organic fieldeffect transistors.
An organic fieldeffect transistor ofet is a fieldeffect transistor using an organic semiconductor in its channel. Today the fieldeffect transistor is the most important electronic device. Abstract we report on the electrical properties of organic field effect transistors ofet based on a new class of organic semiconductors. Operational and shelf lifetime stabilities of ofets. Instead, we will need to examine the physics of ofets moreorless from scratch to develop a working understanding of this new technology. Holstlaan 4, 5656 aa eindhoven, netherlands received 19 may 1994. Effect of gate conductance on hygroscopic insulator. Exploring one class of otfts, organic field effect transistors provides a comprehensive, multidisciplinary survey. Moreover, the device exhibited excellent shelf life and operating stabilities. The junction fet transistor is a type of fieldeffect transistor that can be used as an electrically controlled switch. To make ofets, materials ranging from conductors for electrodes, semiconductors for active channel materials, to insulators for gate dielectric layers are needed. The course will explain the theory underlying ofet operation, discuss practical fabrication strategies in use and underdevelopment, and discuss characterization and simulation of these devices, as well as some simple circuit implications considering their performance strengths and limitations. Organic fieldeffect transistorbased flexible sensors chemical.
Organic field effect transistors based on dntt and related organic. Organic field effect transistors ofets are one of the key components of modern organic electronics. The most commonly used geometry of the ofet is similar to that of the thinfilm transistor tft. Organic field effect transistors based on dntt and related. Field effect transistor sensor micro and nanostructure metal organic framework field effect transistor sensor optical sensor electrochemical sensor xian fang and boyang zong have contributed equally to this work. Improvement of the charge carrier mobility of organic. However, modification of the gate electrode often leads to nonideal transistor characteristics due to changes in its. Organic field effect transistors ofets have been the hotspot in information science for many years as the most fundamental building blocks for stateoftheart organic electronics. Monolayer organic fieldeffect transistors springerlink. Role of macroscopic orientation manish pandeya, shyam s. Hygroscopic insulator field effect transistors hifets are a class of lowvoltageoperation organic transistors that have been successfully demonstrated for biosensing applications through modification of the gate electrode.
Their characteristics have undergone spectacular improvements during the last two or three years. Organic fieldeffect transistors optical science and. Covering various aspects of ofets, the book begins with a. An organic field effect transistor ofet is a field effect transistor using an organic semiconductor in its channel. Thanks to recent progress in terms of materials properties, polymer field effect transistors fets operating in the mhz range can be achieved. Organic fieldeffect transistors 1st edition 9780849380808. Elsevier synthetic metals 66 1994 257261 organic ntype field effect transistor a. Pdf on the operational, shelf life and degradation mechanism in. Field effect transistors fets are unipolar devices, and have two big advantages over bipolar transistors. Characterization of organic field effect transistors for oled.
We summarize multitude of applications realized with ofets. Moreover, the reported highperformance ntype polymer semiconductors are mostly based on amide and imide units. Yanbo zeng, wei huang, wei shi and junsheng yu, enhanced sensing performance of nitrogen dioxide sensor based on organic field effect transistor with mechanically rubbed pentacene active layer, applied physics a, 10. In order to take full advantage of organic electronics, low. Improving device performance of ntype organic field. Organic fieldeffect transistors 1st edition zhenan bao. However, the first practical applications began only in 1960 26. Though their electron mobility is much lower than that of typical semiconductors, oscs show promise in lowcost. Electrochemical doping for lowering contact barriers in. It is widely used in all organic active display, large scale and ultra large. Exploring one class of otfts, organic field effect transistors provides a comprehensive, multidisciplinary survey of the present theory, charge transport studies, synthetic methodology, materials characterization, and current applications of organic field effect transistors ofets. Organic fieldeffect transistors vi 2007 publications. The purdue research foundations office of technology commercialization operates one of the most comprehensive technology transfer programs among leading research universities in the u.
Directed selfassembly of organic semiconductors via. Organic field effect transistors course description. Stacked organic semiconductor for fieldeffect transistors based on linearly condensed pentathienoacene journal of the american chemical society. High mobility organic semiconductors for fieldeffect transistors. Organic fieldeffect transistors ofets were first described in 1987. The molecules consist of the same thieno 2,3b1 benzothiophene building blocks, connected by different. Organic fieldeffect transistors for sensing applications. Charge transport characterized by phononassisted hoppingtunneling. Abstract we report on the electrical properties of organic fieldeffect transistors ofet based on a new class of organic semiconductors.
Organic field effect transistors introduction our daily life involves the continuous use of electronic devices e. A study on the stability of watergated organic fieldeffect. Jul 30, 2009 organic field effect transistors ofets are the key elements of future low cost electronics such as radio frequency identification tags. The past five years have witnessed great progress of oscs.
Organic fieldeffect transistorbased gas sensors chemical. Organic fieldeffect transistors ofets have received worldly wide research attention. Organic field effect transistor ofet materials organic. Robinson and magnus berggren applied physics letters 2006, 89, 143507. Recent progress in printable organic field effect transistors.
Metalorganic frameworkbased sensors for environmental. Organic field effect transistor based flexible sensors flexible transistors are the next generation sensing technology, due to multiparametric analysis, reduced complexity, biocompatibility, lightweight with tunable optoelectronic properties. A wide range of organic molecules available in this section of the catalog are reserached as potential high. The development of ntype polymer semiconductors still lags far behind that of ptype polymer semiconductors, including material number and device performance. The remarkable development of organic thin film transistors otfts has led to their emerging use in active matrix flatpanel displays, radio frequency identification cards, and sensors.
Using a multidisciplinary approach, organic field effect transistors provides comprehensive, uptodate coverage of organic transistors and their technological applications. Pentacene, which is a promising material for organic fets, has been intensely studied. Organic field effect transistors theory, fabrication and. Characterization of organic field effect transistors for oled displays by kyungbum ryu b. Stacked organic semiconductor for fieldeffect transistors based on linearly condensed pentathienoacene. Highly stable contact doping in organic field effect. With its excellent mechanical flexibility, lowcost and lowtemperature processing, the solution processed organic field effect transistor ofet is a promising platform technology for developing. Sterken, in het openbaar te verdedigen op vrijdag 7 september 2012 om 16. Perkinson november 19, 2007 1 motivation over the past twenty years, research into the applications of organic semiconductors oscs has intensi ed rapidly. In a field effect transistor fet, voltage applied to the gate controls the flow of current through a channel from. Organic fieldeffect transistors using single crystals. Flexible porous organic polymer membranes for protonic. Apr 12, 2016 this video shows the process fabrication steps and some electrical characteristics of organic field effect transistor. Since the invention of the first transistor in 1947 by john bardeen, william shockley.
The functioning principles of electronic sensors based on organic semiconductor field effect transistors ofets are presented. Printable organic field effect transistors ofets have been investigated for more than 20 years, aiming at various emerging applications including flexiblewearable electronics, displays and sensors. The electric energy flows through an active channel between sources to drain terminals. Organic field effect transistors ofets have shown great potential for future electronic technologies due to their lowcost solution processing, mechanical flexibility and potential applications. A conjugated polymer containing a b organic field effect transistors ofets have great potential for nextgeneration plastic electronics. Mobility overestimation due to gated contacts in organic. Lowvoltage organic fieldeffect transistors ofets with. Please check back as we are continually adding new, innovative organic semiconductors. A field effect transistor fet consists of a channel of n or ptype semiconductor material through which current can flow, with a different material laid across a section of the channel controlling the conductivity of the channel. Synthesis of pyrrolidinofullerenes and their applications as an ntype component in organic transistors and polymer solar cells. Below are a collection of organic semiconductors that are commonly used as ntype materials in high performance ofet devices. Organic electronic workshop, london, september 16, 20 organic field effect transistor 2 v g v d v g semiconductor insulator drain.
Robust electrolytegated organic fieldeffecttransistors ofets are. Principles, applications, and perspectives hongliang chen beijing national laboratory for molecular sciences, state key laboratory for structural chemistry of unstable and stable species, college of chemistry and molecular engineering, peking university, beijing 100871, p. Organic fieldeffect transistorbased flexible sensors. Organic field effect transistors ofets emerged in the late 1980s burroughes et al. Polymer field effect transistor gated via a polystyrenesulfonic acid thin film elias said, xavier crispin, lars herlogsson, sami elhag, nathaniel d.
These devices have been developed to realize lowcost, largearea electronic products and biodegradable electronics. Save up to 80% by choosing the etextbook option for isbn. A thermal gradient distribution was applied to a substrate during the growth of a vacuumdeposited ntype organic semiconductor osc film prepared from n,n. Owing to their limited performance, ofets are far from competing with siliconbased microelectronics. The physical chemistry of organic field effect transistors, h. While the past several decades have witnessed huge successes in highperformance ofets, their sophisticated functionalization with regard to the responses towards external stimulations has also aroused incre.
Organic field effect transistors presents the state of the art in organic field effect transistors ofets, with a particular focus on the materials and techniques. Author links open overlay panel do hwan kim a 1 jung ah lim b 1 wonsuk cha c jung heon lee d hyunjung kim c jeong ho cho e. Vertical polyelectrolytegated organic field effect transistors. Organic field effect transistors ofets are the basic building blocks for flexible integrated circuits and displays. Lactonefused electrondeficient building blocks for ntype polymer field effect transistors. Organic field effect transistor memory devices using discrete ferritin nanoparticlebased gate dielectrics beom joon kim et al 20 small 9 3784. Organic field effect transistors 1st edition by zhenan bao and publisher routledge. However, the surface quality of the dielectric, which is mainly inherited from the metal electrode, can be improved further. Organic ntype fieldeffect transistor sciencedirect. By applying a reverse bias voltage to the gate terminal, the channel is strained so the electric current is switched off completely. These devices have been developed to realize lowcost, largearea electronic products and. In the past decade, tremendous progress has been made in organic fieldeffect transistors ofets. Interface engineering in organic fieldeffect transistors.
Electrical engineering the cooper union, may 2003 submitted to the department of electrical engineering and computer science on may 18, 2005, in partial fulfillment of the requirements for the degree of master of science abstract. Unencapsulated airstable organic field effect transistor by. Unencapsulated airstable organic field effect transistor by all. Organic field effect transistors ofets gilles horowitz cnrs lpicm, ecole polytechnique, palaiseau, france gilles. Organic fused ring molecules such as pentacene excel in terms of their interesting electronic properties as thin film semiconductors with charge carrier mobilities in the range of up to 23 cm 2 v1 s1. Organic fieldeffect transistors 1st edition zhenan.
Organic field effect transistors discusses the fundamental mechanisms that apply to ofets fabrication, operation, and characterization. Development of ntype polymer semiconductors for organic. Solvent driven performance in thin floating films of pbttt. This unique book presents the stateoftheart in organic field effect transistors ofets with a particular focus on the materials and techniques useful for making integrated circuits. With the incorporation of tailorable organic electronic materials as channel and storage materials, organic field. The office of technology commercialization protects purdue university intellectual property and leads the technology transfer activities for patented purdue innovations with a goal to help. Effect transistors hong zhong state key laboratory of structural chemistry, fujian institute of research on the structure of matter, chinese academy of sciences, fuzhou, fujian, 350002 china. Ofets have been fabricated with various device geometries. Explore the latest questions and answers in organic field effect transistors, and find organic field effect transistors experts. Ofets can be prepared either by vacuum evaporation of small molecules, by solutioncasting of polymers or small molecules, or by mechanical transfer of a peeled singlecrystalline organic layer onto a substrate. Exploring one class of otfts, organic fieldeffect transistors provides a comprehensive, multidisciplinary survey of the present theory, charge transport studies, synthetic methodology, materials characterization, and current applications of organic fieldeffect transistors ofets. Organic field effect transistors ofets have attracted considerable attention due to their outstanding characteristics, such as wide source of materials, compatibility with flexible substrates, low temperature fabrication, suitability for mass production and low cost.
Organic fieldeffect transistors and allpolymer integrated circuits. Organic fieldeffect transistors fets 3 3 organic field effect transistors fets the concept of the field effect transistor fet was proposed by lilienfeld in 1930. Directed selfassembly of organic semiconductors via confined evaporative capillary flows for use in organic field effect transistors. Organic field effect transistors ofets were first described in 1987. Selfassembly of semiconductorinsulator interfaces in onestep spincoating. Solutionprocessed organic fieldeffect transistors with high. Working principle of organic field effect transistor the. The implementation of organic small molecules as active material to organic field effect transistors ofets and furthermore to complex and flexible integrated circuits ics. Contact engineering in organic fieldeffect transistors. Organic field effect transistor circuits with electrode interconnections using reverse stamping paper 91856 authors. An organic fieldeffect transistor is a fieldeffect transistor using an organic semiconductor in its channel.
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