Kinetics of heterogeneous electron transfer at liquid/liquid interfaces as studied by SECM

Article Abstract:

An investigation on the kinetics of heterogeneous electron transfer (ET) as a function of driving force at the interface between two immiscible electrolyte solutions using scanning electrochemical microscopy (SECM) is presented. The study concluded that at high driving force, experimental rate constants decreased with increasing overpotential, deviating from predictions based on Butler-Volmer kinetics.

Observations, Scanning electron microscopes

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Effect of annealing temperature on black electron transfer and distribution of deep trap sites in dye-sensitized TiO2 studied by time-resolved infrared

Article Abstract:

The effect of annealing temperature on electron dynamics in Ru complex-sensitized TiO2 films was analyzed by highly sensitive measurement of transient IR absorption. It was concluded that the amount of electron injection and the back electron transfer rate were not influenced to a large extent by annealing temperature, however, the distribution of deep trap sites was considerably influenced.

Chemistry, Physical and theoretical, Physical chemistry

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Excitation energy transfer in model light-harvesting antennae

Article Abstract:

Applications of light-harvesting arrays range from alternative sources of energy to field of photonic and optoelectronic devices are described. It is also shown that the short-time excitation energy dynamics in coupled ring systems depends on the initial excitation process.

Photonics

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