Zhang Yingna, Dou Feng, Zhou Yijia, Zhao Xiaofeng, Chen Jiangshan, Wang Cheng, Wang Shuhong
School of Chemical Engineering and Materials, Heilongjiang University, Harbin 150080, China.
School of Electronic Engineering, Heilongjiang University, Harbin 150080, China.
Polymers (Basel). 2022 Apr 6;14(7):1494. doi: 10.3390/polym14071494.
In this paper, a D-A polymer (PIB) containing carbazole as the donor group in the main chain and benzimidazole benzisoindolinone as the acceptor group was synthesized by Suzuki reaction. The Suzuki reaction, also known as the Suzuki coupling reaction, is a relatively new organic coupling reaction in which aryl or alkenyl boronic acids or boronic acid esters react with chlorine, bromine, iodoaromatic hydrocarbons or alkenes under the catalysis of zerovalent palladium complexes cross-coupling. A series of devices were fabricated by a spin-coating approach, and the devices all exhibited ternary resistance switching storage behavior. Among them, the composite device with the mass fraction of SnO NPs of 5 wt% has the best storage performance, with a threshold voltage of -0.4 V and a switching current ratio of 1:10:10. At the same time, the current of the device remained stable after a 3-h test. Furthermore, after 10 cycles, the current has no obvious attenuation. The device has good stability and continuity. Moreover, the conduction mechanism is further revealed. Inorganic nanoparticle composite devices have splendid memory performances and exhibit underlying application significance in storing data.
本文通过铃木反应合成了一种主链含咔唑作为供体基团、苯并咪唑苯并异吲哚啉酮作为受体基团的D - A聚合物（PIB）。铃木反应，也称为铃木偶联反应，是一种相对较新的有机偶联反应，其中芳基或烯基硼酸或硼酸酯在零价钯配合物催化下与氯、溴、碘代芳烃或烯烃发生交叉偶联反应。通过旋涂法制备了一系列器件，这些器件均表现出三元电阻开关存储行为。其中，SnO NPs质量分数为5 wt%的复合器件具有最佳存储性能，阈值电压为 - 0.4 V，开关电流比为1:10:10。同时，该器件在经过3小时测试后电流保持稳定。此外，经过10个循环后，电流无明显衰减。该器件具有良好的稳定性和连续性。此外，还进一步揭示了其传导机制。无机纳米颗粒复合器件具有出色的存储性能，在数据存储方面具有潜在的应用意义。
