HIGH-DENSITY NON-VOLATILE MEMORY DEVICES INCORPORATING THIOL-DERIVATIZED PORPHYRIN TRIMERS

摘要

The present invention provides a memory device including a storage medium (102) which is disposed in a number of storage location (104). Each storage location (104) is addressed by a working electrode (101) and a reference electrode (103) so that the storage medium (102) combined with the electrodes form a storage cell (100) in each storage location (104). The memory device of the present invention also incorporating winged trimmers of porphyrinic macrocycles. In the preferred embodiments, the two wing porphyrinic macrocycles are the dame, and both are different from the center macrocycle. Such molecules are relatively easy to synthesize, have four different and distinguishable oxidation states, and thus provide molecules, information storage media and apparatus that store two bits of information.