We have synthesized conjugated polymers containing Pt(II) complexes in the side-chain with different main-chains via a Suzuki coupling reaction. These polymers exhibit bistable properties and can be applied in memory devices, in which charge transfer and traps are responsible for the conductance switching behavior. The devices could be defined as resistive random-access memory (ReRAM) with a high ON/OFF current ratio, excellent stability and high read cycles (107). Furthermore, through the study of the electrochemical properties and theoretical calculations of the polymers, we investigated the significant effect of the polymer main-chain on the memory device performances. The device based on the polymer with a polycarbazole main-chain exhibited a lower threshold voltage and a higher ON/OFF current ratio than the device based on the polymer with a polyfluorene main-chain. Our preliminary results indicate that this kind of material offers promising opportunities for the development of polymer memory devices.
我们通过铃木偶联反应合成了含有Pt(II)复合物的共轭聚合物,这些复合物位于侧链中,主链则各不相同。这些聚合物表现出双稳态特性,可以应用于存储器件,其中电荷转移和陷阱负责导电性开关行为。该设备可以定义为电阻式随机存取存储器(ReR
AM),具有高的开关电流比、优异的稳定性和高的读数周期(107)。此外,通过对聚合物的电
化学性质和理论计算的研究,我们调查了聚合物主链对存储器件性能的重要影响。基于聚
咔唑主链的聚合物所制备的器件表现出较低的阈值电压和较高的开关电流比,相比之下,基于聚
氟烯主链的聚合物器件表现较差。我们的初步结果表明,这种材料为聚合物存储器件的发展提供了良好的机会。