Lecture on Introduction of Semiconductor at North South University as the undergraduate course (ETE411) ======================= Dr. Mashiur Rahman Assistant Professor Dept. of Electrical Engineering and Computer Science North South University, Dhaka, Bangladesh http://mashiur.biggani.org

1. Lecture 6 ETE411 :: Semiconductor

2. The Uncertainty Principle First statement: it is impossible to simultaneously describe with absolute accuracy the position and momentum of a particle. Modified Planck's constant

3. second statement it is impossible to simultaneously describe with absolute accuracy the energy of a particle and the instant of time the particle has this energy. the uncertainty principle is only significant for subatomic particles.

4. SCHRODINGER'S WAVE EQUATION The Wave Equation: The one-dimensional, nonrelativistic Schrodinger's wave equation is given by,

5. The Potential Barrier

6. The wave functions through the potential barrier

7. EXAMPLE 2.5 P.45 E2.8 and E2.10 P.51 2.5, 2.6, 2.7, 2.9

8. Introduction to the QuantumTheory of Solids Chapter 3

9. ALLOWED AND FORBIDDEN ENERGY BANDS Formation of Energy Bands

13. Summery of lecture 6