Charge Transfer across Organic Photoconductor/Insulating Liquid Interface. Part I: Metal Free Phthalocyanine/Alkanes

In order to understand the decisive step in the photoelectrophoretic image formation i. e. the charge exchange between inert and photosensitive particles, we report in part I of a series of papers the charge transfer across metal free x‐Phthalocyanine/Octane and Dodecane interfaces. The electron injection from the photoconductor into the organic liquid as a function of intensity and wavelength of light, and electric field has been studied using a transient measurement technique. It was found that oxygen is the most dominant species in alkanes which is responsible for the negative charge transfer from the photoconductor into the alkanes. The values of the interfacial charge transfer efficiency and quantum yield have been calculated from experimental data and were found to be in agreement with the previous results. The photoinjected charge follows the absorption spectrum of x‐Phthalocyanine qualitatively and was found to be dependent on the electric field and the intensity of light.