Lattice-Mismatched Epitaxy

HgCdTe infrared materials and detectors

by Wen Lei

The current state-of-the-art CdZnTe-based HgCdTe IR detectors are seriously limited by their higher cost and smaller array format size due to the lower device yield and smaller wafer size available, which is fundamentally dominated by the lower crystal quality. In recent years, much attention has been devoted to developing “third generation” infrared detectors, which requires imaging focal plane arrays (FPAs) to be of higher pixel density, lower cost, larger array size, higher operation temperature, and multiband detection. However, this development presents serious challenges to HgCdTe materials grown on CdZnTe substrates.

This book will introduce the theoretical knowledge and experimental techniques to suppress the generation of misfit dislocations, control the propagation of misfit dislocations, and reduce the misfit dislocations in the epitaxial layers. The epitaxial growth of HgCdTe detectors on Si, Ge, GaAs, and GaSb provides a test vehicle. Though the focus is on applications and developoments in third gen IR senors, thie approached being developed for these systems can be applied to other semiconductor materials and devices, so readers will benefit from this book by understanding the knowledge and techniques to achieve high quality semiconductors on lattice-mismatched substrates. As a result, it will have a wide readership, beyond those directly involved with IR detectors, as the knowledge and techniques introduced in this book can be generally applied.

View

Application of Low Dimensional Topological Materials in Spintronics

by Professor Jiansheng Wu, Professor Xiang-Long Yu

This book gives a concise introduction to the principles of topological insulators, and introduces how the special properties of topological insulators can be used in Spintronics. It discusses the typical Hamiltonians of topological insulators and superconductors, with a focus on Group IV materials, as well as discussing how topology influences boundary states, ingap transportation and spin/psudeospin texture.

View

Introduction to Brown Dwarfs

From very-low-mass stars to super-Jupiters

by John Gizis

This book provides an introduction to brown dwarfs aimed at advanced undergraduates and beginning graduate students, supplementing stellar astrophysics or (exo)planetary science classes. It emphasises key theoretical ideas, including brown dwarf concepts, atmospheres, formation, initial mass function, and the main observational results that support those ideas.

View

X-ray Color Imaging

Static and dynamic x-ray fluorescence for chemical element identification

by Kenji Sakurai, Wenyang Zhao

In this book, the author reviews and demonstrates X-ray color imaging, which captures images of chemical elements in the X-ray wavelength range that can be used to create snapshot and movie images for tracking chemical reactions and dynamic systems, and how the technique can be applied to many scientific fields.

View