A novel ternary memory property achieved through rational introduction of end-capping naphthalimide acceptors

作者：Zhang, Qijian; He, Jinghui; Li, Hua^*; Li, Najun; Xu, Qingfeng; Chen, Dongyun; Lu, Jianmei^*

来源：Journal of Materials Chemistry C, 2017, 5(31): 7961-7968.

DOI：10.1039/c7tc01796k

• DATA-STORAGE DEVICE
• SMALL MOLECULES
• SOLAR-CELLS
• THIN-FILM
• DONOR
• DERIVATIVES
• PERFORMANCE
• TRIPHENYLAMINE
• MOIETIES
• SEMICONDUCTORS

Small molecule-based multilevel rewritable memory devices have recently gained extensive attention because they possess super-high storage density and can sustain the stored data without power supply and erase and rewrite electrically; however, small molecule-based multilevel flash-type memory device is extremely challenging to achieve. Herein, we designed a symmetric molecule with end-capping naphthalimide acceptors through rational tuning. This molecule showed an improved crystal size and uniform crystal orientation in the film state. The sandwich-structured device exhibited the typical WORM (write-once-read-many times) memory property from OFF to ON1 transition and encouraging flash memory behavior for the ON1/ON2 transition. This is the first report on small molecule-based ternary memory devices with rewritable memory behavior, and this study will inspire the exploration of multilevel data-storage devices with fully rewritable properties in the subsequent researches.

• 出版日期2017-8-21
• 单位苏州大学