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Author : Y. S. Huang
Release : 2008
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Electronic Structure of Interfacial States Formed at Polymeric Semiconductor Heterojunctions by : Y. S. Huang
Download or read book Electronic Structure of Interfacial States Formed at Polymeric Semiconductor Heterojunctions written by Y. S. Huang. This book was released on 2008. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chang-Ki Moon
Release : 2019-01-29
Genre : Science
Kind : eBook
Book Rating : 553/5 ( reviews)
Book Synopsis Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films by : Chang-Ki Moon
Download or read book Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films written by Chang-Ki Moon. This book was released on 2019-01-29. Available in PDF, EPUB and Kindle. Book excerpt: This thesis considers molecular orientation in thin films and introduces an optical model describing this orientation as applied to organic light-emitting diodes (OLEDs). It also describes the electronic structure of intermolecular charge transfer excitons correlated to molecular orientation in solids. It has long been known that molecular orientation influences the electrical and optical properties of molecular films. One notable example is in liquid crystals where rigid rod or disk shaped molecules are commonly used. Understanding the origin of the molecular orientation and its control by surface treatment and electric field resulted in the development of liquid crystal displays. The same thing has happened in organic electronics, and considerable effort has been devoted to understanding and controlling molecular orientation in solid films to improve charge carrier mobility and light absorption, ultimately to improve the performance of organic solar cells and thin film transistors. In contrast, less attention has been paid to molecular orientation and its influence on the characteristics of OLEDs, probably because of the use of amorphous films rather than micro-crystalline films, and it is only in recent years that some molecular films are known to have preferred orientation. This thesis addresses this topic, focusing on OLEDs, describing the origin and control of the orientation of phosphorescent Ir complexes possessing spherical shape rather than rod or disk shape, the simulation of the optical characteristics of OLEDs influenced by preferred molecular orientation, and finally the orientation of intermolecular charge transfer excitons and its correlation to electronic structures in thin films.
Author : Winfried Mönch
Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 579/5 ( reviews)
Book Synopsis Electronic Structure of Metal-Semiconductor Contacts by : Winfried Mönch
Download or read book Electronic Structure of Metal-Semiconductor Contacts written by Winfried Mönch. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Interface and surface science have been important in the development of semicon ductor physics right from the beginning on. Modern device concepts are not only based on p-n junctions, which are interfaces between regions containing different types of dopants, but take advantage of the electronic properties of semiconductor insulator interfaces, heterojunctions between distinct semiconductors, and metal semiconductor contacts. The latter ones stood almost at the very beginning of semi conductor physics at the end of the last century. The rectifying properties of metal-semiconductor contacts were first described by Braun in 1874. A physically correct explanation of unilateral conduction, as this deviation from Ohm's law was called, could not be given at that time. A prerequisite was Wilson's quantum theory of electronic semi-conductors which he published in 1931. A few years later, in 1938, Schottky finally explained the rectification at metal-semiconductor contacts by a space-
Author : William R. Salaneck
Release : 2001-10-18
Genre : Science
Kind : eBook
Book Rating : 870/5 ( reviews)
Book Synopsis Conjugated Polymer And Molecular Interfaces by : William R. Salaneck
Download or read book Conjugated Polymer And Molecular Interfaces written by William R. Salaneck. This book was released on 2001-10-18. Available in PDF, EPUB and Kindle. Book excerpt: Defines the state-of-the-art in interface science for electronic applications of organic materials. Updates understanding of the foundaiton of interfacial properties. Describes novel electronic devices created from conjugated polymers and organic molecular solids.
Author : Wolfgang Brütting
Release : 2012-10-02
Genre : Technology & Engineering
Kind : eBook
Book Rating : 968/5 ( reviews)
Book Synopsis Physics of Organic Semiconductors by : Wolfgang Brütting
Download or read book Physics of Organic Semiconductors written by Wolfgang Brütting. This book was released on 2012-10-02. Available in PDF, EPUB and Kindle. Book excerpt: The field of organic electronics has seen a steady growth over the last 15 years. At the same time, our scientific understanding of how to achieve optimum device performance has grown, and this book gives an overview of our present-day knowledge of the physics behind organic semiconductor devices. Based on the very successful first edition, the editors have invited top scientists from the US, Japan, and Europe to include the developments from recent years, covering such fundamental issues as: - growth and characterization of thin films of organic semiconductors, - charge transport and photophysical properties of the materials as well as their electronic structure at interfaces, and - analysis and modeling of devices like organic light-emitting diodes or organic lasers. The result is an overview of the field for both readers with basic knowledge and for an application-oriented audience. It thus bridges the gap between textbook knowledge largely based on crystalline molecular solids and those books focusing more on device applications.
