Different interactions between a metal electrode and an organic layer and their different electrical bistability performances

作者：Ma, Yong; Gu, Pei-Yang; Zhou, Feng; Dong, Hui-Long; Li, You-Yong; Xu, Qing-Feng; Lu, Jian-Mei^*; Ma, Wan-Li

来源：RSC Advances, 2015, 5(10): 7083-7089.

DOI：10.1039/c4ra12893a

• MEMORY CHARACTERISTICS
• RESISTIVE MEMORY
• BLOCK-COPOLYMERS
• DATA-STORAGE
• DONOR
• ACCEPTOR
• DEVICES
• COMPOSITES
• ELEMENTS
• BEHAVIOR

A new p-pi conjugated small molecule, 2-[(pyridin-4-ylmethylene)-amino]-6-(N'-pyridin-4-ylmethylene-hydrazino)- benzo[de] isoquinoline-1,3-dione (2PyNI), was synthesized, characterized and fabricated into memory devices. The device ITO/2PyNI/Au (1) showed volatile memory effect, whereas the device ITO/2PyNI/Al (2) showed write once read many times (WORM) effect. According to theoretical calculations, 2PyNI had different interactions with Au and Al, which produced the different memory behaviors of devices 1 and 2, respectively. In addition, the I-V characteristics of devices 1 and 2 were analyzed in detail with various conduction models. The temperature dependence of the current for the ON state of devices 1 and 2 were measured. Under the irradiation of the UV light (365 nm), device 1 could be switched on automatically when the voltage was fixed at -3.0 V and switched off as the bias was removed.

• 出版日期2015
• 单位苏州大学