当前位置: X-MOL 学术Org. Electron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Stable charge retention in graphene-MoS2 assemblies for resistive switching effect in ultra-thin super-flexible organic memory devices
Organic Electronics ( IF 2.7 ) Pub Date : 2018-03-29 , DOI: 10.1016/j.orgel.2018.03.039
Snigdha Bhattacharjee , Ujjal Das , Pranab Kumar Sarkar , Asim Roy

This study investigated the nonvolatile memory characteristics of devices fabricated with PMMA embedding composite of graphene and molybdenum disulphide, which were employed as charge-trapping centres. X-ray diffraction measurements, Scanning and transmission electron microscope image analysis along with other characterisation techniques were performed for the assessment of the nature of graphene MoS2 hybrid system. Bistable I-V characteristics of the device revealed stable and rewritable memory effect. A significantly high resistance ratio > 104 (Roff/Ron) was observed even after 10 days. The reliability and reproducibility of the devices were tested for 104 cycles. The conduction mechanisms of the fabricated nanocomposite based memory cell were discussed on the basis of experimental data using a charge trapping–detrapping mechanism in the graphene MoS2 hybrid. Owing to the increasing interest in the flexible electronics, bending tests were carried out on the devices fabricated on PET substrates. Bendability test at various bending diameters (40-5 mm) for 100 cycles was carried out to show the mechanical robustness of the device.



中文翻译:

石墨烯-MoS 2组件中的电荷保持稳定,可在超薄超柔性有机存储设备中实现电阻切换效果

这项研究调查了由PMMA嵌入的石墨烯和二硫化钼复合材料制成的器件的非易失性存储特性,这些器件被用作电荷俘获中心。进行了X射线衍射测量,扫描和透射电子显微镜图像分析以及其他表征技术,以评估石墨烯MoS 2杂化系统的性质。该器件的双稳态IV特性显示出稳定且可重写的记忆效应。即使在10天后,也观察到了很高的电阻比> 10 4(R off / R on)。测试了设备的可靠性和可重复性10 4周期。在石墨烯MoS 2杂化体中使用电荷俘获-去俘获机制,基于实验数据讨论了所制备的纳米复合材料基存储单元的导电机制。由于对柔性电子器件的兴趣日益浓厚,因此对在PET基板上制造的设备进行了弯曲测试。在各种弯曲直径(40-5 mm)下进行了100次弯曲测试,以显示设备的机械强度。

更新日期:2018-03-29
down
wechat
bug