Author: Viswas Purohit Publisher: University of Pune, PhD Dissertation ISBN: Category : Science Languages : en Pages : 204
Book Description
RESEARCH THESIS by Viswas Purohit PhD, Plasma Physics University of Pune, MAH, India “To study the ECR assisted Growth of III-V nitride (such as GaN) and nanostructures”. • The aim of the work carried out was to design and develop a permanent magnet based Electron Cyclotron Resonance (ECR) plasma system as well as to study the plasma assisted material synthesis and modifications with the ECR plasma. Overall the aims were, a) Development of an ECR plasma system b) Carrying out plasma diagnostics using Langmuir double probe and Retarding field analyzer. c) Use of hollow cathode discharge for synthesizing metallic nanomaterials, which spawned two more projects in our department. d) Depositing GaN by MOCVD within an ECR plasma reactor.
Author: D. Kurt Gaskill Publisher: ISBN: Category : Science Languages : en Pages : 824
Book Description
This book differs from previous volumes on wide bandgap semiconductors in that the emphasis is specifically on materials aspects related to electronic properties and devices. Solid advances are reported in the growth techniques of all three materials groups. In particular, the critical importance of surfaces, interfaces, doping, defects and impurities is demonstrated. Potential device applications ranging from new high-frequency, high-power all-solid-state devices to unique cold-cathode electronic devices are presented. Whilst the results demonstrate real promise for a wide range of new solid-state devices that are not feasible with current production materials, it is also evident that substantial progress in materials research is needed to fulfill the real potential of these applications. Critical issues related to the electronic potential of all three materials are addressed. Topics include: device technologies - devices, metallizations, etching, and implantation; bulk and bulk-like crystal growth; film growth; defects and structural properties; doping and electrical properties and optical and field-emission properties.
Author: Akihiko Yoshikawa Publisher: IOS Press ISBN: Category : Science Languages : en Pages : 608
Book Description
Realization of the semiconductor laser diodes (LDs) operating in the blue wavelength region had been a 'dream' for a long time for the scientists working on widegap materials until just a few years ago. Quite remarkable progress has been made in the last few years the dream has come true. The first ZnSe-based blue/green LD was fabricated about four years ago and its officially reported life-time in CW operation exceeds 100 hours now; it is quickly approaching a practical use level. Further, GaN-based blue LDs have also been realized. In this way, the progress in these research fields is quite rapid. The work includes articles on bulk growth, epitaxy, doping and characterization, blue LDs and LEDs, and future prospects in both ZnSe-based and GaN-based areas.
Author: Stephen J. Pearton Publisher: CRC Press ISBN: 1000448428 Category : Science Languages : en Pages : 556
Book Description
Presents views on current developments in heat and mass transfer research related to the modern development of heat exchangers. Devotes special attention to the different modes of heat and mass transfer mechanisms in relation to the new development of heat exchangers design. Dedicates particular attention to the future needs and demands for further development in heat and mass transfer. GaN and related materials are attracting tremendous interest for their applications to high-density optical data storage, blue/green diode lasers and LEDs, high-temperature electronics for high-power microwave applications, electronics for aerospace and automobiles, and stable passivation films for semiconductors. In addition, there is great scientific interest in the nitrides, because they appear to form the first semiconductor system in which extended defects do not severely affect the optical properties of devices. This series provides a forum for the latest research in this rapidly-changing field, offering readers a basic understanding of new developments in recent research. Series volumes feature a balance between original theoretical and experimental research in basic physics, device physics, novel materials and quantum structures, processing, and systems.
Author: Viswas Purohit
Author: D. Kurt Gaskill
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Author: Akihiko Yoshikawa
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Author: Stephen J. Pearton
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