Semiconductor particle charge transfer processes

Fig. 9.1. (a) Semiconductor particle charge transfer processes induced by direct band gap excitation. 

Memming, R. Photoinduced Charge Transfer Processes at Semiconductor Electrodes and Particles. 169, 105-182 (1994). 

Memming R (1994) Photoinduced charge transfer processes at semiconductor electrodes and particles. Top Curr Chem 169 105-181... 

Kamat, P. V. Gopidas, K. R. Dimitrijevic, N. M. Picosecond charge transfer processes in ultrasmall CdS and CdSe semiconductor particles, Mol. Cryst. Liq. Cryst. 1990, 183, 439. 

In the previous section, we described in detail the primary processes that give rise to photogenerated electrochemically active (and potentially electrochemically useful) charge carriers on illuminated semiconductor particles (reactions (9.1)-(9.4)). Thus, in this section, we will consider, from a predominantly electrochemical viewpoint, the thermodynamics and kinetics associated with the interfacial charge transfer processes that occur post-charge carrier generation (reactions (9.5)-(9.7)). 

Photoinduced Charge Transfer Processes at Semiconductor Electrodes and Particles... 

In the present article, various fundamental photoelectrochemical effects are quantitatively described and discussed, with the main emphasis on the kinetics of charge transfer processes. Although in principle the same reaction mechanisms are valid for extended semiconductor electrodes and particles, different factors govern the reaction rate, as will be discussed in detail. Finally, a brief overview of various applications will be given. 

Memming R. (1994), Photoinduced charge transfer processes at semiconductor electrodes and particles , in Topics in Current Chemistry, Vol. 169, Mattay J., ed.. Springer-Verlag, Berlin, pp. 105-181. 

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