NiO-Based Electronic Flexible Devices

Abstract

Personal, portable, and wearable electronics have become items of extensive use in daily life. Their fabrication requires flexible electronic components with high storage capability or with continuous power supplies (such as solar cells). In addition, formerly rigid tools such as electrochromic windows find new utilizations if they are fabricated with flexible characteristics. Flexibility and performances are determined by the material composition and fabrication procedures. In this regard, low-cost, easy-to-handle materials and processes are an asset in the overall production processes and items fruition. In the present mini-review, the most recent approaches are described in the production of flexible electronic devices based on NiO as low-cost material enhancing the overall performances. In particular, flexible NiO-based all-solid-state supercapacitors, electrodes electrochromic devices, temperature devices, and ReRAM are discussed, thus showing the potential of NiO as material for future developments in opto-electronic devices.

Piezoresistive Memories Based on Two-Dimensional Nano-Scale Electromechanical Systems

“…The resistive switching in the ReRAM cell can originate from different mechanisms, the most common being the formation/interruption of a conductive filament in the matrix [4,5]. RS has been studied mainly in insulating materials such as oxides [6][7][8][9], nitrides [10][11][12], chalcogenides [13][14][15] and organic materials [16][17][18]. Similar phenomena has also been observed in metallic porous films [19].…”

Transparent Electronics for Wearable Electronics Application

“…To improve the applicability of NiO as building blocks in some electronic devices, new strategies have been sought to produce low-dimensional nanostructures, such as nanoparticle, nanorods, and nanowires . The most commonly utilized method to fabricate NiO nanostructures is chemical synthesis routes, such as hydrothermal methods, sol–gel, and thermal decomposition .…”

Highly Specific Silver Ion Detection by Fluorescent Carbon Quantum Dots

“…We therefore resolved to model the cation -N-CQD interaction wit methods building a two-component model containing one silver cation (Ag + ) or cad cation (Cd 2+ ) interacting with the nucleophilic nitrogen (N:) of the two heteroar fragments (M1 = pyridine, M2 = quaternary) or with the negative oxygen of a pyrid oxide moiety (model M3). Ag + and Cd 2+ share the same electron configurati electrons, [Kr]4d 10 ), and their ionic radii are 1.29 and 1.09 Å, respectively, shrinkin…”

“…Carbon-based nanomaterials, provided with various translational symmetries, ranging from zero-dimensional fullerenes, monodimensional nanotubes, and 2D graphene sheets, have been receiving considerable attention for several years now since they have proven to be very useful materials in several technological fields, including, for instance, (opto)electronics, photovoltaics, and sensoristics [1][2][3][4][5][6][7]. Among these materials, carbon quantum dots (CQDs) have come into the limelight owing to the excellent optical properties they share with "traditional" semiconductor quantum dots, such as CdTe/CdSe [8,9] or other inorganic nanomaterials [10][11][12][13][14][15][16][17][18][19][20][21], augmented with other desirable properties, including remarkable biocompatibility and negligible cytotoxicity and biohazard [4,5]. Additional features of CQDs are their excellent solubility in water, chemical stability, resistance to photobleaching, and the possibility of functionalizing their surface and scaling up their preparation in a straightforward manner [22].…”