Macroscopic theory of chemisorption and partial charge transfer processes on semiconductor electrodes

Abstract

Partial charge transfer models have recently been extended in order to understand chemisorption processes on semiconductor electrodes. The present paper first gives a short summary of macroscopic charge balance expressions from which measurable quantities such as impedance and photoresponse are derived. Specifically, the following points are treated: (a) Explicit inclusion of partial charge transfer chemisorption kinetics into semiconductor electrode impedance (Sections 4–6); (b) Connection of majority and minority carrier transport with partial charge transfer kinetics (Sections 7, 8); (c) Interfacial and chemisorption contributions to surface photovoltage (Becquerel effect), firstly for zero current limit (Section 9).