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Ambipolar Resistive Switching in an Ultrathin Surface-Supported Metal-Organic Framework Vertical Heterojunction.
Nano Letters ( IF 10.8 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.nanolett.9b04355
Luiz G S Albano 1 , Tatiana P Vello 1, 2 , Davi H S de Camargo 1, 3 , Ricardo M L da Silva 1, 3 , Antonio C M Padilha 1 , Adalberto Fazzio 1 , Carlos C B Bufon 1, 2, 3
Affiliation  

Memristors (MRs) are considered promising devices with the enormous potential to replace complementary metal-oxide-semiconductor (CMOS) technology, which approaches the scale limit. Efforts to fabricate MRs-based hybrid materials may result in suitable operating parameters coupled to high mechanical flexibility and low cost. Metal-organic frameworks (MOFs) arise as a favorable candidate to cover such demands. The step-by-step growth of MOFs structures on functionalized surfaces, called surface-supported metal-organic frameworks (SURMOFs), opens the possibility for designing new applications in strategic fields such as electronics, optoelectronics, and energy harvesting. However, considering the MRs architecture, the typical high porosity of these hybrid materials may lead to short-circuited devices easily. In this sense, here, it is reported for the first time the integration of SURMOF films in rolled-up scalable-functional devices. A freestanding metallic nanomembrane provides a robust and self-adjusted top mechanical contact on the SURMOF layer. The electrical characterization reveals an ambipolar resistive switching mediated by the humidity level with low-power consumption. The electronic properties are investigated with density functional theory (DFT) calculations. Furthermore, the device concept is versatile, compatible with the current parallelism demands of integration, and transcends the challenge in contacting SURMOF films for scalable-functional devices.

中文翻译:

超薄表面支撑金属有机框架垂直异质结中的双极性电阻切换。

忆阻器(MRs)被认为是有前途的器件,具有取代互补金属氧化物半导体(CMOS)技术的巨大潜力,该技术已接近规模极限。制造基于MR的混合材料的努力可能会导致合适的操作参数,同时又具有较高的机械灵活性和低成本。金属有机框架(MOF)可以满足这些需求。在功能化表面上逐步生长的MOF结构(称为表面支撑的金属有机框架(SURMOF))为设计在电子,光电和能量收集等战略领域的新应用提供了可能性。但是,考虑到MRs体系结构,这些混合材料的典型高孔隙率可能容易导致设备短路。从这个意义上讲,据报道,这是首次将SURMOF胶片集成在可伸缩的可伸缩功能设备中。独立的金属纳米膜可在SURMOF层上提供牢固且自调节的顶部机械接触。电气特性揭示了由湿度水平介导的双极性电阻开关,具有低功耗。用密度泛函理论(DFT)计算研究电子性质。此外,该设备的概念是通用的,可以与当前集成的并行性要求兼容,并且克服了接触SURMOF膜以实现可扩展功能的设备的挑战。电气特性揭示了由湿度水平介导的双极性电阻开关,具有低功耗。用密度泛函理论(DFT)计算研究电子性质。此外,该设备的概念是通用的,与当前的并行并行性要求兼容,并且克服了接触SURMOF膜以实现可扩展功能的设备的挑战。电气特性揭示了由湿度水平介导的双极性电阻开关,具有低功耗。用密度泛函理论(DFT)计算研究电子性质。此外,该设备的概念是通用的,可以与当前集成的并行性要求兼容,并且克服了接触SURMOF膜以实现可扩展功能的设备的挑战。
更新日期:2020-01-22
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