Abstract
A new morphological structure of magnesium phthalocyanine (MgPc) compound has been observed when MgPc was recrystallized from a strong donative solvent such as morpholine. The aggregate structure of MgPc prepared by this method exhibited strong absorption in the infrared region (800-850 nm) and, consequently, an excellent sensitivity (incident energy required for half reduction of initial surface voltage E1/2=3-4 ergs/cm2 at 850 nm) was obtained in the MgPc-polyester dispersed type photoreceptor. The increase in the sensitivity due to a significant decrease in the induction period of the photo discharge characteristics of MgPc-polyester photoreceptor has revealed the possibility of a low-cost material available for a laser diode printing system.
