This book addresses one of the most compelling frontiers of contemporary science: the behavior of quantum systems at the nanoscale. In these regimes, where dimensions approach the de Broglie wavelength of charge carriers, matter reveals phenomena unattainable in bulk form, and entirely new avenues for technology emerge.
Particular attention is devoted to low-dimensional structures—quantum wells, wires, and dots—together with advanced compound semiconductors of the III–V and III–N families, and metallic clusters whose properties are shaped by confinement and correlation effects. These systems constitute the essential building blocks of modern optoelectronics, quantum photonics, and bioimaging.
The chapters herein endeavor to present, with both rigor and clarity, the principles that govern confinement, transport, and optical response at the nanoscale. Special emphasis is placed upon absorption and emission processes, recombination dynamics, and the modulation of electronic states under external fields, temperature, and pressure. In doing so, this work illuminates both physical foundations as well as applications in energy conversion, communication, and sensing.
Authored by researchers of significant expertise, the contributions form a coherent account of progress in this swiftly advancing field. It is my conviction that this book serves not only as a record of current achievements but also as an invitation to further inquiry and discovery in the study of quantum-enabled devices.
Chapter
1. Fascinating new generation core-shell quantum dots.
Chapter
2. Donor interaction physics of semiconductor QD nano-spheres.
Chapter
3.
Normalized Exciton Binding Energy in Cylindrical Nanostructures: Influences
of Quantum Confinement and LO Phonon Contributions.
Chapter
4. The nonlinear
optical rectification coefficient in a MSQD: effects of external perturbation
and the Kratzer confinement potential.- Chapter
5. Hydrostatic Pressure and
Temperature Effects on Nonlinear Optical Rectification in Tetrapod Quantum
Dots.
Chapter
6. Absorption coefficient of a delta-doped layer inside three
quantum wells subjected to an electric field.
Chapter
7. Stark-shift,
binding energy, diamagnetic response, polarizability and dipole moment of
shallow donor-impurity in GaAs Core/Shell quantum disk.
Chapter
8.
Performance of III-V-based Quantum Well Intermediate Band Solar Cells.-
Chapter
9. Recombination Dynamics and Radiative Lifetimes in III-N
Semiconductor Photonic Structures.
Chapter
10. Optical Absorption and
Oscillator Strength Modulation in GaAs-Based Quantum Dots.
Chapter
11.
Kratzer Potential's Impact on Optical Absorption in Multilayer Quantum Dots.
Dr. Radouane En-nadir is currently serving as an Associate Researcher at the Interdisciplinary Institute of Technology and Innovation (3IT) at the Sherbrooke Unievrsity, QC, Canada. His research is dedicated to the materials science, design, and micro/nanofabrication of next-generation optoelectronic and photonic devices. He specializes in the development of advanced solar cells, high-electron-mobility transistors (HEMTs), and sensors based on compound semiconductor materials, particularly III-V on Germanium and III-Nitride on Silicon platforms. His work targets applications in energy harvesting, environmental monitoring, and aerospace systems.
Dr. En-nadir earned his Ph.D. in Materials Science and Energy in 2022 from Sidi Mohamed Ben Abdellah University in Morocco. He also holds two Masters degrees: one in Nanomaterials from Sidi Mohamed Ben Abdellah University (2016), and another in Nanotechnology and Advanced Materials from the Le Mans University in France (2017), through an international dual-degree program.
Over the past years, Dr. En-nadir has established himself as an active contributor to the scientific community. He has co-authored more than 60 peer-reviewed publications and presented his work at numerous international conferences, workshops, and scientific forums. His collaborative projects span multiple countries and institutions. In addition to his academic activities, he is involved in the editorial process of several international scientific journals, serving as an associate editor and frequent peer reviewer. His academic interests extend to the integration of low-cost, lightweight, and highly efficient optoelectronic technologies aimed at space applications, including deployable solar power systems and radiation-resistant sensors.
Dr. En-nadirs long-term vision is to contribute to the commercialization and real-world deployment of innovative semiconductor technologies that can drive the global energy transition, enhance satellite functionality, and support the development of sustainable smart systems.
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