Flexible Metal‐Organic Framework for Mechanical Sub Tbyte inch−2 Data Recording under Ambient Condition. Issue 22 (22nd October 2021)

• Record Type: Journal Article
• Authors: Alekseevskiy, P. V.; Rzhevskiy, S.; Gilemkhanova, V.; Kulachenkov, N. K.; Sapianik, A.; Barsukova, M.; Fedin, V. P.; Milichko, V. A.
• Is Part Of: Advanced materials interfaces. Volume 8:Issue 22(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-10-22
• Subjects: 2D materials -- chemical etching -- data storage -- metal‐organic frameworks -- scanning probe lithography; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.202101196
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract: Metal‐organic frameworks (MOFs), demonstrating structural response on external stimuli, represent a promising family of crystalline materials for microelectronic and data storage devices. Herein, manipulation with MOF structure at the nanometer scale for the device miniaturization is still a challenge. Here, mechanical recording and reading the nanometer scale patterns onto flexible 2D MOF at ambient conditions are reported. Treatment of the MOF surface with a hot solvent decreases the roughness up to 1/7 of the layer thickness. Therefore, an atomic force microscope probe is allowed to cause the deformations with the spatial resolution up to 25 nm (≈0.1 Tbyte inch −2 storage density) and the depth from 0.4 nm. Selective chemical etching by the solvent can further develop the pattern, while the integrity of the MOF structure maintains. The realization of the "read‐only‐memory" concept on flexible MOF at ambient conditions paves the way for next‐generation sustainable data storage materials. Abstract : The concept of "read‐only memory" nonvolatile device is realized on 2D metal‐organic frameworks with flexible ligands providing 0.2 nm surface roughness for mechanical 0.1 Tbyte inch −2 data recording at ambient conditions. Precise and controllable etching allows to fix the motive and operate at "ultra‐high density" and "grayscale" regimes of data storage.