wo dimensional thin layered materials have excellent electrical and optoelectrical properties due to their structural characteristics. Two-dimensional transition metal dichalcogenides (TMDC), one of the 2D materials, exhibit excellent photoreactivity due to their band gap and are promising materials for optoelectronic applications¹. The 2D thin layered structure allow their integration into flexible and wearable circuits using the characteristics of the mechanical strength and structural flatness.² Compared with large scale studies on 2D material-based photoconductors and photodiodes, non-volatile optoelectronic memories made from these materials are rarely studied. This time we will use the optical characteristics of 2D material devices to advance the field of nonvolatile memory.