Researchers from TU Dresden developed a novel memory device that is based on a combination of an light emitting material and a metal-oxide semiconductor (MOS) capacitor.

pinMOS memory structure (TU Dresden)

The so-called pinMOS device is a non-volatile memory-capacitor with high repeatability and reproducibility. pinMOS devices can store several states, since charges can be added or removed in controllable amounts. This device can also be controlled (read and write) both electrically and optically. The light emitting material is an OLED device.

The initial research yielded a device with a lifetime of more than 104 read-write erase cycles and the memory states can be maintained and differentiated over 24 hours.

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