This chapter lists some examples for the three different classes of organic semiconductor materials. Fundamental concepts, terms, and models, commonly used in the description of both inorganic and organic semiconductors, are recalled, and the limits in applicability of these concepts for organic. Physics of organic semiconductors, second edition, wolfgang. The efficiency of oleds was greatly improved when realizing that phosphorescent states triplet excitons may be used for emission when doping an organic semiconductor matrix with a phosphorescent dye, such as complexes of iridium with strong spinorbit coupling. First, a 100 nm thick layer of al or ag was evaporated on a glass substrate through a shadow mask to yield a long 80 m wide strip. At the same time, our scientific understanding of how to achieve optimum device.
The interest in undoped organic semiconductors revived in the 1980s due to the demon stration of an ef. Physics of organic semiconductors, second edition article in physica status solidi a 2098. When considering the properties of plastics one does not normally think of them as electrical conductors. Understanding the optical and electronic properties of. Filling the gap in the literature currently available, this book presents an overview of our knowledge of the physics behind organic semiconductor devices. Solution absorption spectra of low molecular weight conjugated systems typically used in thin films of semiconductors are presented.
This thesis deals with the optical properties of organic semiconductors which are used for organic light emitting diodes oleds and organic solar cells oscs. Mar 20, 2015 organic semiconductors are a class of materials that combine the electronic advantages of semiconducting materials with the chemical and mechanical benefits of organic compounds such as plastics. What is best book to start study charge transport in organic. Basic concepts on organic semiconductors marco sampietro. Physics of organic semiconductors by wolfgang brutting. In preparing the questions at the end of each chapter we have already tried to guide the. Organic semiconductors offer a low cost alternative to established semiconductors when it comes to large area and low cost applications first oled applications are already on the market. This process is experimental and the keywords may be updated as the learning algorithm improves. These keywords were added by machine and not by the authors. Discotic liquid crystals have emerged as very attractive organic semiconductors due to their high degree of ordering and selfhealing capacity. Organic electronics technische universitat munchen. There are many advantages of using organic semiconductors, such as easy fabrication, mechanical flexibility, and low cost. Organic semiconductors institut fur physik university of augsburg.
In contrast to inorganic semiconductor based lightemitting diode led materials, whose characteristics are adversely affected by size compression to the nanoscale, the electronic structures and charge transport characteristics of organic semiconductors suggest that they should be largely immune to such influences. The role of the s quantum number will be considered subsequently. Physics of organic semiconductors, second edition article in physica status solidi rrl rapid research letters 67. Systematic synthesis of organic semiconductors with variable.
Physics of organic semiconductors, second edition, wolfgang brutting and chihaya adachi eds. Organic semiconductors generally have much lower mobility performance essentially than inorganic semiconductors. Physics of organic semiconductors wiley online books. Organic semiconducting materials are widely recognized as having tremendous potential for certain electronics applications. Physics and materials properties, one of the questions we are asked most frequently is this. The physics of organic semiconductors springerlink. Predictions of hole mobilities in oligoacene organic. Kahna a department of electrical engineering, princeton uni. It comprehensively discusses the application of organic semiconductor. Photophysics and applications of organic semiconductors. Difference between inorganic and organic semiconductors. An introduction to organic semiconductors springerlink. Deep learning for optoelectronic properties of organic.
Semiconductivity in these materials occurs for single molecules, short chains of molecules and long polymer chains depending on the material. Alan doolittle lecture 1 introduction to semiconductors and semiconductor devices a background equalization lecture reading. Organic semiconductor heterojunctions and its application in. Organic semiconductors for solutionprocessable fieldeffect. Predictions of hole mobilities in oligoacene organic semiconductors from quantum mechanical calculations weiqiao deng and william a. Scilla submitted to the graduate school of the university of massachusetts amherst in partial fulfillment of the requirements for the degree of doctor of philosophy may 2012 polymer science and engineering. Since the appearance of our book, fundamentals of semiconductors. Organic semiconductors are low dielectric constant e materials.
The crystalline structure of inorganics allows for an efficient well defined path for the charges to travel, whereas organic polymers will naturally twist and bend and turn. Organic gas sensors have been successfully developed in many applications to detect humidity both absolute and relative, various gases like ammonia, alcohol, nitrogen oxides, chlorine, hydrogen etc. Recently, organic semiconductors have been used as active elements in optoelectronic devices such as organic light emitting diodes oled, organic solar cells, and organic field effect transistors ofet. Oct 12, 2016 photonic materials and devices group, university of edinburgh photo. Pages in category organic semiconductors the following 38 pages are in this category, out of 38 total. Physics of organic semiconductors, second edition the field of organic electronics has seen a steady growth over the last 15 years. Strictly speaking organic semiconductors are not new. Organic semiconductors are attractive candidates for spintronics applications because of their long spin lifetimes. At the same time, our scientific understanding of how to achieve optimum device performance has grown, and this book gives an overview of our presentday knowledge of the physics behind organic semiconductor devices. Despite the astonishing variety of plastic materials created by nature or synthesized by man and despite the broad array of physical characteristics that plastics provide, one feature often presumed to link all organic materials is their inability to conduct electricity. Goddard iii materials and process simulation center, california institute of technology, pasadena, california 91125 received. In modern science and technology it is not unusual for a research activity to involve more than one scientific discipline.
The electronic structure of organic semiconductors. Physics of organic semiconductors 2nd edition t he. Uvvis can be used as an easy and straightforward technique to accurately estimate the band gap energy of organic. Lecture 1 introduction to semiconductors and semiconductor. Preparationand characterizationof solution organic semiconductor. The charge transport properties of such materials are determined by both the microstructural arrangement of molecules as in inorganic semiconductors and by the chemical structure of the molecules themselves. Characterization of organic semiconductors and optoelectronic. The field of organic electronics has seen a steady growth over the last 15 years. The use of organic semiconductors as sensors has revolutionized modern technology in recent years due to their inherent capabilities. Organic semiconductor an overview sciencedirect topics. By this term, we mean organic molecules deposited as an. Organic semiconductors, polymers and oligomers, having the electrical properties of semiconductors and the mechanical properties of plastics, are good candidates for developing electronic and optoelectronic flexible components, for example, transistors and lightemitting diodes leds, on the flexible textile substrate. Fundamental concepts, terms, and models, commonly used in the description of both inorganic and organic semiconductors, are recalled, and the limits in.
Physics of organic semiconductors wolfgang brutting. Request pdf on jan 29, 20, yutaka noguchi and others published physics of organic semiconductors, second edition find, read and cite all the research you need on researchgate. This comprises also the charge transfer ct state in donoracceptor blends, an intermediate state on the way to charge collection in oscs. Zwarts, in het openbaar te verdedigen op vrijdag 2 juli 2004 om. Physics of organic semiconductors, 2nd, completely new revised. Optical band gaps of organic semiconductor materials. Organic transistors as a basis for printed electronics 3. I v cntnt t f cntrbtr intrdtn t th h f orn sndtr 1 w. Organic semiconductor article about organic semiconductor. Organic semiconductor refers to organic nonmetallic materials that exhibit semiconductor properties. The phenomenon of photoconductivity is observed in organic semiconductors with low electrical conductivity. Atomistic modeling of energetic disorder in organic semiconductors oscs and its effects on the optoelectronic properties of oscs.
Contributions from 18 international research groups cover various aspects of this field, ra. At the same time, our scientific understanding of how to. Organic materials have a number of properties which distinguish them from crystalline materials and have profound consequences for their physics. Improvements on the material side are still needed e. Physics of organic semiconductors, second edition download. Ifor samuel, university of st andrews outline introduction light, optoelectronics organic semiconductors new applications in medicine in visible light communication in sensing uk dr. This book is a printed edition of the special issue organic semiconductors that was. Conductivity in organic semiconductors hybridized with the. Physics of organic semiconductors, second edition request pdf. This should include, the wiley titles, and the specific portion of the content you wish to reuse e.
Nov 15, 2016 organic semiconductors are solids whose building blocks are pi bonded molecules or polymers made up by carbon and hydrogenatoms and at times heteroatoms such nitrogen, sulfur and oxygen. Systematic synthesis of organic semiconductors with variable band gaps a dissertation presented by christopher t. Physics and technology of organic semiconductor devices. Materials research society symposium proceedings volume 1115 physics and technology of organic semiconductor devices symposium held december 25, 2008, boston, massachusetts, u.
1618 296 789 787 185 964 559 1086 267 1071 683 627 1475 1509 1114 1231 1418 374 596 1301 372 1191 833 416 1276 722 564 814 1371 897 619 466