1. Lecture 10 Solid-Liquid Interface Reference. 1.R. Memming, Semiconductor Electrochemistry, Wiley-VCH, 2000 (e-book) 2.A.J. Bard and L.R. Faulkner, Electrochemical Methods: Fundamentals and Applications, Wiley, 2001 3.J. O’M. Bockris, A.K.N. Reddy, and M. Gamboa-Aldeco, Modern Electrochemistry, Kluwer Academic/Plenum Publishers, 2000 Lecture note http://les.kaist.ac.kr/B_Lecture

2. Structure of the Interface -IHP -OHP -Diffuse layer

3. Charge and Potential Distribution at the Interface Now you have a charge distribution at the interface. Then what happens at the interface? OK. Now you replace a metal electrode with a semiconductor. Then, how would the charge distribution change? Now the charges will be distributed in 1) 2) 3)

4. The Helmholtz Double Layer Capacitance of the interface Capacitance of the metal-solution interface

5. The Gouy Layer in the Electrolyte Capacitance of the Gouy Layer Capacitance of the metal-solution interface

6. Charges at the Solid-Liquid Interface Implications for a semiconductor electrode

7. The Space Charge Layer in the Semiconductor n-type SemiconductorElectrolyte Charge distribution Potential Distribution

8. Capacitance of The Space Charge Layer

10. Capacitance of the Space Charge Layer

11. The Mott-Schottky Plot

13. Semiconductor-Electrolyte Interface

14. Next Meeting Semiconductor-Liquid Interface