Abstract

AbstractUsing a single picosecond pulse from a frequency‐doubled Nd:YAG‐mode‐locked laser for excitation, we measured directly the rate of electron injection from the excited singlet state of eosin in the conduction band of colloidal TiO2 particles. The rate constant for interfacial electron transfer is 9.5 × 108s−1 at 25°C and pH 3.

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