PEI-conjugated AuNPs as a sensing platform for arsenic (AS-III)

Sharma, Amit; Shankhwar, Soni; Gaur, M. S.

doi:10.1080/17458080.2012.736641

Cited by 10 publications

(3 citation statements)

References 55 publications

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“…To fabricate a reduced film, VPP p6DTP films are exposed to a secondary vapor doping of polyethyleneimine (PEI). [ 37 ] The reduced film has a drastically diminished absorption in the longer wavelength region with a λ max blue shifted toward ca. 553 nm.…”

Section: Resultsmentioning

confidence: 99%

Cascaded Logic Gates with Printed Electrochemical Memristors

Grant,

Wanless,

Bandera

et al. 2023

Adv Materials Technologies

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Electrochemical‐based memristors are highly attractive that are capable of nonvolatile analog tuning, long‐term state stability, low power consumption, device scalability, and fast switching speeds. Through the combination of film deposition techniques, i.e., vapor phase polymerization and screen printing, fabrication of a poly(4‐(6‐hexyl)‐4H‐dithieno[3,2‐b:2′,3′‐d]pyrrole) (p6DTP)‐based synaptic‐emulating three‐terminal memristor is designed. Through voltage‐driven pulse programming, and square waves with an amplitude of 100 mV and duration of 100 msec, the device exhibits a power consumption of 1 pJmm−2 per synaptic event. By analyzing the fundamental operational trends of the p6DTP‐based device, simple and advanced integrated applications can be demonstrated along with synaptic‐like responses. This effort is the first presentation of the vapor phase polymerization technique for any dithienopyrrole‐based monomers, along with the physical implementation of any memristive system as an advanced logical circuit, demonstrated here as a cascaded combinational logic gate.

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Section: Resultsmentioning

confidence: 99%

Cascaded Logic Gates with Printed Electrochemical Memristors

Grant,

Wanless,

Bandera

et al. 2023

Adv Materials Technologies

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“…600 nm is an attribute of a highly oxidized species. 46 By exposing a PPy film to PEI vapor, a commonly used reductant, 47 the film is chemically dedoped, and the broadband absorption past ca. 600 nm is drastically diminished.…”

Section: Resultsmentioning

confidence: 99%

Nonconformal Electrochemical Memristor through Vapor Phase Polymerization of Pyrrole

Grant,

Wanless,

Crooks

et al. 2023

ACS Appl. Electron. Mater.

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A nonvolatile organic synaptic memristor was fabricated utilizing a vapor phase polymerization technique for synthesizing polypyrrole. This synaptic memristor employed a bottom synaptic electrode in order to "read" the device's conductance, termed the synaptic weight of this neuromorphiccapable device. Through a programming pulse of +1 V amplitude and a 1 s duration to the "writing" electrode, or top synaptic electrode, a resolution of 0.245 μS occurs per change for each programmed state. This organic synaptic memristor consumes a minimum programming power of 4.16 fJ mm −2 and can be further decreased via advanced patterning and layer deposition techniques. Operational applications are demonstrated for this organic synaptic memristor, including Boolean algebra (AND, NAND, OR, and NOR logic gates), as well as abacus calculations (addition, subtraction, and division).

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“…This loop-cluster PEI corona may be a good independent space for controlling the growth and hindering the aggregation of AuNPs due to the strong coordination ability of PEI and the unique loop structure of the corona. 26 The hydrophilic corona will facilitate the penetration of substrates dissolved in the aqueous phase. Therefore, this may be a new strategy for preparing AuNPs with powerful catalytic functions.…”

Section: Introductionmentioning

confidence: 99%