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Author:
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ISBN:
Category : Electroluminescent devices
Languages : en
Pages : 960
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Book Description
Author:
Publisher:
ISBN:
Category : Electroluminescent devices
Languages : en
Pages : 960
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Book Description
Author:
Publisher:
ISBN:
Category : Electroluminescent devices
Languages : en
Pages : 872
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Book Description
Author: S. J. Pearton
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1056
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Book Description
This book covers the full spectrum of activity in the GaN and related materials arena. These semiconductors are finding applications in full-color displays, high-density information storage, white lighting for outdoor or backlit displays, solar-blind UV detectors, high-power/high-temperature electronics, and covert undersea communications. Progress is been reported in the growth of thick layers on patterned substrates by various methods, leading to lower overall defect concentrations and improved current-voltage and reliability characteristics. The rapidly increasing market for blue/green LEDs is also noted by the entry of a number of new companies to the field. While these emitter technologies continue to be dominated by MOCVD material, there are exciting reports of UV detectors and HFET structures grown by MBE with device performance at least as good as by MOCVD. Topics include: GaN electronic and photonic devices; laser diodes and spectroscopy; electronic devices and processing; quantum dots and processing; novel growth, doping and processing and rare-earth doping and optical emission.
Author: John E. Northrup
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 912
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Book Description
The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Author: Stephen J. Pearton
Publisher: CRC Press
ISBN: 9789056996864
Category : Science
Languages : en
Pages : 724
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Book Description
The first GaN and Related Materials covered topics such as a historical survey of past research, optical electrical and microstructural characterization, theory of defects, bulk crystal growth, and performance of electronic and photonic devices. This new volume updates old research where warranted and explores new areas such as UV detectors, microwave electronics, and Er-doping. This unique follow-up features contributions from leading experts that cover the full spectrum of growth.
Author:
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ISBN:
Category :
Languages : en
Pages : 53
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Book Description
In Symposium L on GaN and Related Alloys, recent results on growth and characterization of III-nitride semiconductors and their application in optoelectronic and electronic devices were reported. Several advances were reported in nitride-based technology for visible and UV-light emitters. Researchers at the University of South Carolina presented results on LEDs operating at 250 nm, while NTT researchers presented 350-nm UV LEDs with maximum external efficiency of 1.4%; phosphor-coated red and white LEDs incorporating their UV LEDs were also described by NTT. Lumileds researchers discussed the performance of their latest Luxeon LEDs, which achieve external quantum efficiency of 25% and 10% at 450 nm and 530 nm, respectively. In addition, Lumileds presented a demonstration of backlighting using 34 Luxeon chips to create a full-color light source with color temperature up to 15,000 K.A number of notable results in the nitride materials characterization arena were presented, particularly with regard to defect structure and the behavior of Mg in p-doped GaN. Continued advances were also reported in the development of nitride-based electronic devices. New materials and device designs for nitride-based heterostructure FETs, targeted for rf power applications, were presented by several research groups. Included among these was a discussion of advances in the growth and fabrication of nitride electronic devices on Si substrates. Also reported were initial results on an AlGaAs-GaAs-GaN heternstructure biopolar transistor realized using a wafer fusion process for device fabrication.
Author: Michael Shur
Publisher: World Scientific
ISBN: 9789812562364
Category : Technology & Engineering
Languages : en
Pages : 310
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Book Description
The unique materials properties of GaN-based semiconductors havestimulated a great deal of interest in research and developmentregarding nitride materials growth and optoelectronic andnitride-based electronic devices. High electron mobility andsaturation velocity, high sheet carrier concentration atheterojunction interfaces, high breakdown field, and low thermalimpedance of GaN-based films grown over SiC or bulk AlN substratesmake nitride-based electronic devices very promising.
Author: Thomas H. Myers
Publisher: Cambridge University Press
ISBN: 9781107413290
Category : Technology & Engineering
Languages : en
Pages : 1052
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Book Description
This book on gallium nitride (GaN) and associated materials focuses on advances in basic science, as well as the rapidly maturing technologies involving blue/green light emitters, detectors and high-power electronics. A highlight is a report on wide-bandgap semiconductor research done in Europe. Also reported is the commercialization of a laser operating at 405nm wavelength with a 4000-hour device lifetime. At 450nm emission wavelength, significant reductions in lifetime were found, and are believed to arise from nonideal properties of the InGaN alloy used in the active layer of the device. Additional topics include: the significant success of transistors for microwave applications; improvements in the epitaxy of GaN, using both selective area growth techniques (lateral epitaxy overgrowth) and introducing low-temperature intralayers in the films; advances in both molecular beam epitaxy and metal-organic vapor phase epitaxy, including several studies of quantum dot formation in strained alloys and improvements in hydride vapor phase epitaxy, particularly for providing very thick films.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Book Description
Author: John E. Northrup
Publisher: Cambridge University Press
ISBN: 9781107412071
Category : Technology & Engineering
Languages : en
Pages : 888
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Book Description
This book focuses on three main themes. Theme one - advances in basic science. Point defects, dislocations, doping, the properties of nitride alloys with a special emphasis on localization phenomena and GaAsN alloys (which are very promising for long-wavelength emitters), transport and optical properties are also featured. Theme two - growth and growth-related issues. Significant advances have been made in understanding/improving all major nitride growth techniques (MBE, MOCVD, HVPE). Techniques such as ELOG and the development of bulk-like substrates are receiving attention as methods to reduce the number of dislocations. Theme three - devices. Tremendous progress has been reported in device design and optimization, and also in understanding device processing issues such as p-contacts, laser lift-off, and etching. Overall, the book offers a broad exchange of scientific knowledge and technical expertise. Topics include: molecular beam epitaxy and growth kinetics; point defects and doping; light emitters; nitride alloys and lateral epitaxy; quantum wells; transport and optical properties; vapor phase epitaxy; extended defects; electronic devices and processing.
