Semiconductor Surfaces and Interfaces

Semiconductor Surfaces and Interfaces PDF

Author: Winfried Mönch

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 455

ISBN-13: 3662031345

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Semiconductor Surfaces and Interfaces deals with structural and electronic properties of semiconductor surfaces and interfaces. The first part introduces the general aspects of space-charge layers, of clean-surface and adatom-included surfaces states, and of interface states. It is followed by a presentation of experimental results on clean and adatom-covered surfaces which are explained in terms of simple physical and chemical concepts and models. Where available, results of more refined calculations are considered. A final chapter is devoted to the band lineup at semiconductor interfaces.

Semiconductor Interfaces: Formation and Properties

Semiconductor Interfaces: Formation and Properties PDF

Author: Guy LeLay

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 399

ISBN-13: 3642729673

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The trend towards miniaturisation of microelectronic devices and the search for exotic new optoelectronic devices based on multilayers confer a crucial role on semiconductor interfaces. Great advances have recently been achieved in the elaboration of new thin film materials and in the characterization of their interfacial properties, down to the atomic scale, thanks to the development of sophisticated new techniques. This book is a collection of lectures that were given at the International Winter School on Semiconductor Interfaces: Formation and Properties held at the Centre de Physique des Rouches from 24 February to 6 March, 1987. The aim of this Winter School was to present a comprehensive review of this field, in particular of the materials and methods, and to formulate recom mendations for future research. The following topics are treated: (i) Interface formation. The key aspects of molecular beam epitaxy are emphasized, as well as the fabrication of artificially layered structures, strained layer superlattices and the tailoring of abrupt doping profiles. (ii) Fine characterization down to the atomic scale using recently devel oped, powerful techniques such as scanning tunneling microscopy, high reso lution transmission electron microscopy, glancing incidence x-ray diffraction, x-ray standing waves, surface extended x-ray absorption fine structure and surface extended energy-loss fine structure. (iii) Specific physical properties of the interfaces and their prospective applications in devices. We wish to thank warmly all the lecturers and participants, as well as the organizing committee, who made this Winter School a success.

Electronic Properties of Semiconductor Interfaces

Electronic Properties of Semiconductor Interfaces PDF

Author: Winfried Mönch

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 269

ISBN-13: 3662069458

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Using the continuum of interface-induced gap states (IFIGS) as a unifying theme, Mönch explains the band-structure lineup at all types of semiconductor interfaces. These intrinsic IFIGS are the wave-function tails of electron states, which overlap a semiconductor band-gap exactly at the interface, so they originate from the quantum-mechanical tunnel effect. He shows that a more chemical view relates the IFIGS to the partial ionic character of the covalent interface-bonds and that the charge transfer across the interface may be modeled by generalizing Pauling?s electronegativity concept. The IFIGS-and-electronegativity theory is used to quantitatively explain the barrier heights and band offsets of well-characterized Schottky contacts and semiconductor heterostructures, respectively.

Electronic Structure of Semiconductor Interfaces

Electronic Structure of Semiconductor Interfaces PDF

Author: Winfried Mönch

Publisher: Springer Nature

Published: 2024

Total Pages: 156

ISBN-13: 3031590643

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This concise volume examines the characteristic electronic parameters of semiconductor interfaces, namely the barrier heights of metal-semiconductor or Schottky contacts and the valence-band discontinuities of semiconductor-semiconductor interfaces or heterostructures. Both are determined by the same concept, namely the wave-function tails of electron states overlapping a semiconductor band gap directly at the interface. These interface-induced gap states (IFIGS) result from the complex band structure of the corresponding semiconductor. The IFIGS are characterized by two parameters, namely by their branch point, at which their charge character changes from predominantly valence-band- to conduction-band-like, and secondly by the proportionality factor or slope parameter of the corresponding electric-dipole term, which varies in proportion to the difference in the electronegativities of the two solids forming the interface. This IFIGS-and-electronegativity concept consistently and quantitatively explains the experimentally observed barrier heights of Schottky contacts as well as the valence-band offsets of heterostructures. Insulators are treated as wide band-gap semiconductors. In addition, this book: Explains intrinsic interface states of electron states that overlap the band gap of a semiconductor at the interface Includes experimental data on Schottky contacts including carrier height, ideality factor and flat-band barrier height Compares of Theoretical and Experimental Data for a range of semiconductors.

Semiconductor Surfaces and Interfaces

Semiconductor Surfaces and Interfaces PDF

Author: Winfried Mönch

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 548

ISBN-13: 3662044595

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This third edition has been thoroughly revised and updated. In particular it now includes an extensive discussion of the band lineup at semiconductor interfaces. The unifying concept is the continuum of interface-induced gap states.

Semiconductor Interfaces And Microstructures

Semiconductor Interfaces And Microstructures PDF

Author: Zhe Chuan Feng

Publisher: World Scientific

Published: 1992-08-31

Total Pages: 327

ISBN-13: 981450582X

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Recently there have been major achievements in the study of semiconductor interfaces and microstructures for different materials and structural systems. Progress has been made through various experimental technologies and theoretical methods. This book provides an up-to-date review on these advances and includes the following major subjects: IV-IV, III-V and II-VI semiconductors and metal/semiconductor structures; new developments in growth methods; electric, optical, magnetic and structural characterization and properties; relative theories — electronic transport, phonos and interface modes; devices and applications. These materials are organized into four sections: General, III-V, II-VI and IV-IV, which offer comprehensive information and help readers in following the new developments in the research frontiers of the above fields.

Formation Of Semiconductor Interfaces - Proceedings Of The 4th International Conference

Formation Of Semiconductor Interfaces - Proceedings Of The 4th International Conference PDF

Author: J Pollman

Publisher: World Scientific

Published: 1994-06-09

Total Pages: 818

ISBN-13: 9814552399

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Semiconductor interfaces are of paramount importance in micro, nano- and optoelectronics. Basic as well as applied research on such systems is therefore of extremely high current interest. To meet the continuous need for a better understanding of semiconductor interfaces with respect to both their fundamental physical and chemical properties as well as their applications in modern opto- and microelectronics, the series of international conferences on the formation of semiconductor interfaces was begun. The fourth conference of the series held in Jülich addresses as main topics: clean semiconductor surfaces; adsorbates at semiconductor surfaces; metal-semiconductor, insulator-semiconductor and semiconductor-semiconductor interfaces; devices and wet chemical processes. The 12 invited lectures assess the present status of the research in important areas and about 180 contributed papers describe most recent achievements in the field.

Semiconductor Interfaces, Microstructures and Devices

Semiconductor Interfaces, Microstructures and Devices PDF

Author: Zhe Chuan Feng

Publisher: CRC Press

Published: 1993-01-01

Total Pages: 318

ISBN-13: 9780750301800

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A semiconductor interface is the contact between the semiconductor itself and a metal. The interface is a site of change, and it is imperative to ensure that the semiconducting material is sealed at this point to maintain its reliability. This book examines various aspects of interfaces, showing how they can affect microstructures and devices such as infrared photodetectors (as used in nightsights) and blue diode lasers. It presents various techniques for examining different types of semiconductor material and suggests future potential commercial applications for different semiconductor devices. Written by experts in their fields and focusing on metallic semiconductors (Cadmium Telluride and related compounds), this comprehensive overview of recent developments is an essential reference for those working in the semiconductor industry and provides a concise and comprehensive introduction to those new to the field.