Preface; 1. Classical mechanics vs. quantum mechanics; 2. Basic postulates and mathematical tools; 3. Wave/particle duality and de Borglie waves; 4. Particles at boundaries, potential steps, barriers and in quantum wells; 5. The harmonic oscillator and photons; 6. The hydrogen atom; 7. Multi-electron ions and the periodic table; 8. Interaction of atoms with electromagnetic radiation; 9. Simple molecular orbitals and crystalline structures; 10. Electronic properties of semiconductors and the p-n junction; 11. The density matrix and the quantum mechanic Boltzmann equation; References; Index.