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The kinetics of photoinduced interfacial charge transfer in semiconductor particles

4 The kinetics of photoinduced interfacial charge transfer in semiconductor particles [Pg.304]

Kinetic analysis of photoinduced interfacial charge transfer processes in colloidal semiconductor systems is frequently complex. Indeed, it is diffi- [Pg.304]

Marcus has recently returned to this problem [133] and, by analogy with the problem of donor-acceptor electron transfer at the interface between two immiscible liquids, has derived the following expression for ka, the heterogeneous rate constant for electron transfer from a semiconductor to a species in a contacting electrolyte  [Pg.306]

1 Photoinduced interfacial charge transfer with dynamic quenching [Pg.306]

Dynamic electron transfer is observed when the adsorption between the charge carrier acceptor species and the semiconductor particle is weak. As such, charge carrier acceptor molecules have to diffuse from the homogeneous solution bulk to the surface of the semiconductor particle in order to accept the photogenerated electrons/holes. As described in Section 9.2.1, photogenerated carriers typically recombine on the sub-nanosecond time scale thus, it is necessary to accumulate one of the charge carriers [Pg.306]




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Charge of particles

Charge photoinduced

Charged particles

Charging kinetics

Charging of particles

Interfacial charge

Interfacial transfer

Kinetic transfer

Kinetics particles

Kinetics, interfacial

Particle charge

Particle charging

Particle transfer

Photoinduced charge transfer

Semiconductors charge transfer

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