Download or read book Defect Scattering of Electrons in Indium Antimonide Quantum Wells written by Karen Benson Bottoms and published by . This book was released on 2007 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Optical Characterization and Modeling of Compositionally Matched Indium Arsenide Antimonide Bulk and Multiple Quantum Well Semiconductors written by Scott C. Phillips and published by . This book was released on 2004-03 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indium arsenide-antimonide (InAsSb) semiconductors have been determined to emit in the 3-5 micrometer range, the window of interest for countermeasures against infrared electro-optical threats. This experiment set out to cross the bulk to quantum well characterization barrier by optically characterizing two sets of compositionally matched type I quantum well and bulk well material samples. Absorption measurements determined the band gap energy of the bulk samples and the first allowed subband transition for the quantum wells. By collecting absorption spectra at different temperatures, the trend of the energy transitions was described by fitting a Varshni equation to them. The expected result of the quantum well always having slightly higher energy than its bulk counterpart was observed. An etalon effect also was observed in the quantum wells, caused by the cladding layers in those samples. Photoluminescence spectra also were collected to characterize the change in electron temperature (Te) as the excitation power was varied. As expected, electron temperature increased with increasing power and increasing temperature. The start of the longitudinal optical phonon-dominated cooling range due to excitation intensity also was determined for the samples from 1/Te. It was found that the quantum well required higher excitation intensities to achieve this effect. Lastly, the energy transitions found for the quantum well samples were compared to those found by a finite element method model. The predicted energies all had a constant value above what was found experimentally, indicating the program had a translation error within it. (10 tables, 47 figures, 18 refs.)

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Download or read book Advanced Optical Spectroscopy Techniques for Semiconductors written by Masanobu Yoshikawa and published by Springer Nature. This book was released on 2023-03-23 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on advanced optical spectroscopy techniques for the characterization of cutting-edge semiconductor materials. It covers a wide range of techniques such as Raman, infrared, photoluminescence, and cathodoluminescence (CL) spectroscopy, including an introduction to their physical fundamentals and best operating principles. Aimed at professionals working in the research and development of semiconductors and semiconductor materials, this book looks at a broad class of materials such as silicon and silicon dioxide, nano-diamond thin films, quantum dots, and gallium oxide. In addition to the spectroscopic techniques covered, this book features a chapter devoted to the use of a scanning electron transmission microscope as an excitation source for CL spectroscopy. Written by a practicing industry expert in the field, this book is an ideal source of reference and best-practices guide for physicists, as well as materials scientists and engineers involved in the area of spectroscopy of semiconductor materials. Further, this book introduces the cutting-edge spectroscopy such as optical photothermal IR and Raman spectroscopy or terahertz time-domain spectroscopy (THz-TDS) etc.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1970 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Download or read book Semiconductors written by and published by . This book was released on 1997 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Journal written by Canadian Ceramic Society and published by . This book was released on 1977 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: