“…Therefore, it is highly desirable to prepare novel active materials or/and memory devices that can achieve not only date storage but also secure memory devices. 41 Considering that small organic molecules display tunable properties and designable structures; we are interested in introducing special stimuli-responsive small organic molecules as active materials into organic electrical memory devices that are more likely to simultaneously achieve data storage and secure memory devices. [42][43][44] Herein, a UV-light-stimuli responsive small organic molecule 2-(2-((5-(9,9-bis(4-((2-ethylhexyl)oxy)phenyl)-7-(pyren-1-yl)-9H-fluoren-2-yl)thiophen-2-yl)methylene)-3-oxo-2,3-dihydro-1Hinden-1-ylidene)malononitrile (PFTCM, as shown in Scheme 1) with a large conjugated backbone and secure memory performance was designed and successfully synthesized.…”