Introduction to Atoms, Nuclei, and Semiconductors

Unlock the secrets of the microscopic world and discover how modern technology is built from the ground up. Understanding the physics of atoms, atomic nuclei, and semiconductors is the key to grasping how modern electronics, from microchips to solar cells, actually function. This comprehensive written course guides you from the fundamental structure of the atom to the practical applications of semiconductor devices. You will build a solid intuitive and mathematical understanding of atomic models, nuclear reactions, and electronic band structures, preparing you for academic success or further studies in physics and engineering. What you'll learn: - Understand the evolution of atomic models, including Bohr's theory and energy levels. - Analyze the structure of the nucleus, mass defect, binding energy, and radioactive decay. - Explore the band theory of solids to distinguish between conductors, insulators, and semiconductors. - Examine n-type and p-type semiconductor materials and how charge carriers behave. - Master the operation of p-n junction diodes, rectifiers, and basic optoelectronic devices. - Apply theoretical physics principles to solve conceptual and numerical problems. We begin with the core definitions and historical models of the atom, establishing a firm theoretical foundation. From there, we dive into nuclear physics and radioactive processes, before transitioning into solid-state physics to explore how semiconductors power our modern digital world. This course is designed for beginners, high school physics students, pre-university learners, and anyone seeking a clear, text-based introduction to modern physics. No advanced prior knowledge is required. Start reading today to build a strong foundation in the physics of the future.