PULSED LASER PHOTOCOULOSTATIC STUDIES OF THE GOLD/PHTHALOCYANINE FE(CN)//6 OVER BAR **3**/** minus **4 PHOTOCONDUCTOR ELECTRODE SYSTEM.

The photoconductor system under study was of a metalized plastic, optically transparent electrode. A nonporous polycrystalline layer of chloro-gallium phthalocyanine was sublimed onto this substrate. This electrode was placed in contact with an equimolar solution (1 mM) of Fe(CN)//6 OVER BAR **3**,** minus **4, maintained at a pH of 4. In the pulsed laser photocoulostatic experiments, the electrode was first biased at some initial potential. The emission wavelength of the dye laser closely matched the absorption maxima of the phthalocyanine dye. A band model summarizing the results is shown for an equilibrium bias potential.