Abstract
Photoelectron emission from a Pt electrode into liquid NH 3 under Ar-ion laser illumination at wavelengths corresponding to 2.41, 2-54, 2-71 and 3.41 eV is described. Plots of photocurrent ( i) versus electrode potential ( V) in the “five-halves law” ( i 0,4 versus V) form show “two-slope” plots that yield threshold potentials and electron injection levels. Based on these, an energy level diagram involving injection of electrons at energies 0.13–0.97 eV above the solvated electron level (wwch is -1.3 eV versus vacuum) is proposed.
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