Highly performing ionic liquid enriched hybrid RSDs

Rajan, Krishna; Bocchini, Sergio; Perrone, Denis; Chiappone, Annalisa; Roppolo, Ignazio; Pirri, Candido; Ricciardi, Carlo; Chiolerio, Alessandro

doi:10.1039/c7tc01093a

Cited by 17 publications

(19 citation statements)

References 41 publications

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“…During measurements the sample appears to re‐configure the order of molecules, so that the maximum current flowing is increased from about 120 nA in the first cycle to about 180 nA in the last. This is in addition to the diffusion‐controlled hysteresis typically observed when conducting a non‐stirred cyclic voltammetry experiment, due to the local depletion of reactive species at the electrodes and the consequential reliance on the rate‐limited diffusion of molecules under the effects of an electric field . There is a small element of quasi‐reversibility to the later runs, which is likely due to the tectomer beginning to adsorb onto the surface of the electrodes .…”

Section: Resultsmentioning

confidence: 98%

Electrical Properties of Solvated Tectomers: Toward Zettascale Computing

Chiolerio

Draper

Jost

et al. 2019

Adv Elect Materials

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Liquid cybernetic systems with embodied intelligence solutions mimicking biologic systems, in response to future increasingly distributed sensing and the resulting data to be managed, has been proposed as the next cybernetic paradigm. Storing and computing information inherently pushes research toward extremely high packing densities, shifting from classical into quantum (particle, molecular) physics, chemistry, and materials science with the drawback of requiring very expensive equipment and exotic matter or matter states. Solutions represent a cheap and easy‐to‐handle platform for data storage and readout in liquido, where a physical structure able to change configuration under electrical stimuli reversibly exchanges entropy with the external environment. Tectomers are proposed as a candidate for such an adaptive structure. A tectomer is an oligomer made of few oligoglycine units with a common center. Tectomers undergo pH dependent assembly to form a single layer supramer across a surface. Tectomers represent a stable paradigm, in their amorphous or crystalline forms, reversibly influenced by solution pH, whose electronic properties are studied herein. Through a reasonable hypothesis, how solvated cybernetic systems can be exploited in the rush for zettascale computing will be looked upon.

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Section: Resultsmentioning

confidence: 98%

Electrical Properties of Solvated Tectomers: Toward Zettascale Computing

Chiolerio

Draper

Jost

et al. 2019

Adv Elect Materials

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“…This is due to a relatively larger defects contribution to overall resistance in our case. [43] It should be noted that the TCR also depends on other factors such as the printing technique, ink formulation including particles sizes, organic solvent, and other additives. [34]…”

Section: Thermal Coefficient Of Resistancementioning

confidence: 99%

Assessing Current‐Carrying Capacity of Aerosol Jet Printed Conductors

et al. 2020

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Conductive traces printed onto compatible flexible substrates to interconnect conventional silicon-based components and printed components are key building blocks and technologically unique to flexible hybrid electronics (FHE). This form of innovative integration offers durability, flexibility, conformity, and low-temperature processing of particular relevance to applications in fields such as wearable medical devices, IoT, solar cells, communications, aerospace, and defense. [1-7] Moreover, it enables new use of materials and a wide range of applications and functionalities. This facilitate in producing low power-consumption devices allowing for rapid and large volume production at low cost. [8,9] Printed traces are fabricated using techniques such as screen printing, inkjet printing, precision dispensing, and aerosol jet printing (AJP), depending on key ink properties including the ink viscosity. [10] Among these, AJP is probably the most attractive method for fabrication of printed electronics. Fine features down to 10 μm trace width and spacing, large stand-off distances, a large ink matrix, and design flexibility are the key advantages of AJP technique. [11] AJP process starts by atomization of an ink either pneumatically (used in this study) or ultrasonically, depending on the ink viscosity and solid content size and percentage (Table 1). In the pneumatic atomizer, an inert gas (nitrogen) is applied into the ink container to form mists/aerosols of the ink (around 1-5 μm diameter). Then the aerosol flow is carried out using a carrier gas to the deposition head passing by the virtual impactor where the aerosols are filtered based on their inertia. In the deposition head, a surrounding sheath gas flow (nitrogen) is used to collimate and direct the aerosols flow stream into the substrate. Figure 1 summarizes the working principle of the pneumatic atomization. The AJP print quality is governed by many factors including ink and substrate properties and their interaction,

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“…In CBRAM cells, a nanoscale conductive metallic path between an electrochemical active working electrode/anode (such as Ag or Cu) and a reasonably inert counter electrode/cathode (such as Pt, Au, or TiN) is formed or ruptured by generation, movement, and reduction of mobile metal cations (i.e., Ag + or Cu z + , where z denotes the charge value of the ionic species). CBRAMs are typically based on oxides (such as SiO 2 or Al 2 O 3 ), higher chalcogenides (e.g., GeSe), classical solid‐state cation conductors (e.g., AgI), and polymers (such as PVDF or PEO). In the simplest case, anodic oxidation of a metal electrode Me generating cations Me z + takes places when a positive voltage is applied between the anode and cathode (anodic oxidation)

Me \to {Me}^{z +} + {ze}^{-}

…”

Section: Solid‐state Electrochemistry In Memristive Switchesmentioning

confidence: 99%

Nanoparticle Dynamics in Oxide‐Based Memristive Devices

Tappertzhofen

Martino

Hofmann

2019

Physica Status Solidi (a)

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In microelectronics, a device's functionality is shaped by its interfaces. While classical semiconductor research aims for the preparation of nearly ideal interfaces, the emerging paradigm is that new functionalities can arise from interfaces with less perfection. Memristive devices rely on the control of such less‐perfect interfaces. They are the building blocks for a new range of applications, including new memory and logic architectures and neuromorphic computing. Research on memristive systems and applications demands an interdisciplinary approach across disciplines, including solid‐state physics, electrochemistry, and biochemistry. Advanced metrology is the key for better understanding and finally a better control of such interfaces and novel device technologies. Herein, the authors highlight such recent advances in characterization and the understanding of electrochemical reactions on the (sub‐) nanoscale and the dynamics of the nanoparticles and clusters involved during operation of memristive devices acting as a model system. The authors focus particularly on in operando real‐time monitoring of the memristive switching effect by transmission electron microscopy and a novel plasmon‐enhanced spectroscopy method.

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Highly performing ionic liquid enriched hybrid RSDs

Cited by 17 publications

References 41 publications

Electrical Properties of Solvated Tectomers: Toward Zettascale Computing

Electrical Properties of Solvated Tectomers: Toward Zettascale Computing

Assessing Current‐Carrying Capacity of Aerosol Jet Printed Conductors

Nanoparticle Dynamics in Oxide‐Based Memristive Devices

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