Atomic Layer Epitaxy of III-V Compound Semiconductors by Thermal and Laser-Assisted Metalorganic Chemical Vapor Deposition PDF Download
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Author: Steven P. DenBaars
Publisher:
ISBN:
Category :
Languages : en
Pages : 251
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Book Description
Atomic Layer Epitaxy (ALE) is a promising variation of conventional vapor phase epitaxy which achieves uniform growth of ultra-thin epitaxial layers by a self-limiting monolayer by monolayer deposition process. By developing a new regime of metalorganic chemical vapor deposition (MOCVD) growth, in which saturated surface reactions control the growth, it is possible to alternately deposit monolayers of column III and column V elements so that only one monolayer of the III-V compound semiconductor is deposited in every cycle of the deposition. In this thesis, ALE growth of single crystal GaAs, as well as AlAs and GaAs/AlGaAs heterostructures and devices is demonstrated. We have been able to grow extremely uniform ultra-thin epitaxial layers and quantum wells (QWs) with thickness variations of less than one monolayer per cm over an entire sample in an optimized reactor using ALE. The observed dependence of the growth rate on temperature and trimethylgallium flux is modeled by first order adsorption kinetics utilizing measured reaction rate constants. The low temperature photoluminescence (PL) of ALE grown GaAs QW's exhibit narrow line intrinsic luminescence with linewidths comparable to the best reported values by conventional MOCVD. (jhd).
Author: Steven P. DenBaars
Publisher:
ISBN:
Category :
Languages : en
Pages : 251
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Book Description
Atomic Layer Epitaxy (ALE) is a promising variation of conventional vapor phase epitaxy which achieves uniform growth of ultra-thin epitaxial layers by a self-limiting monolayer by monolayer deposition process. By developing a new regime of metalorganic chemical vapor deposition (MOCVD) growth, in which saturated surface reactions control the growth, it is possible to alternately deposit monolayers of column III and column V elements so that only one monolayer of the III-V compound semiconductor is deposited in every cycle of the deposition. In this thesis, ALE growth of single crystal GaAs, as well as AlAs and GaAs/AlGaAs heterostructures and devices is demonstrated. We have been able to grow extremely uniform ultra-thin epitaxial layers and quantum wells (QWs) with thickness variations of less than one monolayer per cm over an entire sample in an optimized reactor using ALE. The observed dependence of the growth rate on temperature and trimethylgallium flux is modeled by first order adsorption kinetics utilizing measured reaction rate constants. The low temperature photoluminescence (PL) of ALE grown GaAs QW's exhibit narrow line intrinsic luminescence with linewidths comparable to the best reported values by conventional MOCVD. (jhd).
Author: Stuart Irvine
Publisher: John Wiley & Sons
ISBN: 1119313015
Category : Technology & Engineering
Languages : en
Pages : 582
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Book Description
Systematically discusses the growth method, material properties, and applications for key semiconductor materials MOVPE is a chemical vapor deposition technique that produces single or polycrystalline thin films. As one of the key epitaxial growth technologies, it produces layers that form the basis of many optoelectronic components including mobile phone components (GaAs), semiconductor lasers and LEDs (III-Vs, nitrides), optical communications (oxides), infrared detectors, photovoltaics (II-IV materials), etc. Featuring contributions by an international group of academics and industrialists, this book looks at the fundamentals of MOVPE and the key areas of equipment/safety, precursor chemicals, and growth monitoring. It covers the most important materials from III-V and II-VI compounds to quantum dots and nanowires, including sulfides and selenides and oxides/ceramics. Sections in every chapter of Metalorganic Vapor Phase Epitaxy (MOVPE): Growth, Materials Properties and Applications cover the growth of the particular materials system, the properties of the resultant material, and its applications. The book offers information on arsenides, phosphides, and antimonides; nitrides; lattice-mismatched growth; CdTe, MCT (mercury cadmium telluride); ZnO and related materials; equipment and safety; and more. It also offers a chapter that looks at the future of the technique. Covers, in order, the growth method, material properties, and applications for each material Includes chapters on the fundamentals of MOVPE and the key areas of equipment/safety, precursor chemicals, and growth monitoring Looks at important materials such as III-V and II-VI compounds, quantum dots, and nanowires Provides topical and wide-ranging coverage from well-known authors in the field Part of the Materials for Electronic and Optoelectronic Applications series Metalorganic Vapor Phase Epitaxy (MOVPE): Growth, Materials Properties and Applications is an excellent book for graduate students, researchers in academia and industry, as well as specialist courses at undergraduate/postgraduate level in the area of epitaxial growth (MOVPE/ MOCVD/ MBE).
Author: V. G. Keramidas
Publisher:
ISBN:
Category : Crystal growth
Languages : en
Pages : 314
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Publisher:
ISBN:
Category : Science
Languages : en
Pages : 594
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ISBN:
Category : Aeronautics
Languages : en
Pages : 892
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Author: Gerald B. Stringfellow
Publisher: Elsevier
ISBN: 0323139175
Category : Science
Languages : en
Pages : 417
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Book Description
Here is one of the first single-author treatments of organometallic vapor-phase epitaxy (OMVPE)--a leading technique for the fabrication of semiconductor materials and devices. Also included are metal-organic molecular-beam epitaxy (MOMBE) and chemical-beam epitaxy (CBE) ultra-high-vacuum deposition techniques using organometallic source molecules. Of interest to researchers, students, and people in the semiconductor industry, this book provides a basic foundation for understanding the technique and the application of OMVPE for the growth of both III-V and II-VI semiconductor materials and the special structures required for device applications. In addition, a comprehensive summary detailing the OMVPE results observed to date in a wide range of III-V and II-VI semiconductors is provided. This includes a comparison of results obtained through the use of other epitaxial techniques such as molecular beam epitaxy (MBE), liquid-phase epitaxy (LPE), and vapor phase epitaxy using halide transport.
Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 1860
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Author: Paul D. Dapkus
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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This program is intended to develop a process for the growth of GaAs and related compounds by Atomic Layer Epitaxy (ALE). The program involves fundamental studies of gas phase kinetics of the organometallic and hydrides to be used in the process as well as surface reaction studies to determine the surface of various organometallics. We have chosen in this program to effect ALE growth in a dense H2 atmosphere. We believe that the reactivity of H2 is important to the removal, by hydrogenation, of the alkyl radicals from the growing surface. To better understand the process we are pursuing fundamental information in two areas. First, basic measurements of the reactivity band reaction products of organometallics and hydrides and of photogenerated species with compound semiconductor surfaces are being undertaken that will determine the feasibility of using photoactivation and in thermal catalytic reactions in the gas phase to accomplish ALE. Second, epitaxial growth experiments are being performed to determine the feasibility of an ALE process employing photodecomposition of surface absorbed species as well as thermal catalytic reactions.
Author: Eswara Prasad Namburi
Publisher: Springer Nature
ISBN: 9819997917
Category :
Languages : en
Pages : 338
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Author:
Publisher:
ISBN:
Category : Electronic ceramics
Languages : en
Pages : 392
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