Symmetric naphthalenediimidequaterthiophenes for electropolymerized electrochromic thin films

Figà, Viviana; Chiappara, Clara; Ferrante, Francesco; Casaletto, Maria Pia; Principato, F.; Cataldo, Sebastiano; Chen, Zhihua; Usta, Hakan; Facchetti, Antonio; Pignataro, Bruno

doi:10.1039/c5tc00746a

Cited by 28 publications

(14 citation statements)

References 59 publications

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“…The S 2p spectrum (Fig. 5, c) shows the S 2p 3/2 − S 2p 1/2 peaks with values characteristic for PEDOT [39], while the Cl 2p spectrum (Fig. 5, e) shows only a species with usual 3/2-1/2 splitting.…”

Section: A Cross-linked-gox/pedot Working Biosensor Interfacementioning

confidence: 96%

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Amperometric Biosensor and Front-End Electronics for Remote Glucose Monitoring by Crosslinked PEDOT-Glucose Oxidase

et al. 2018

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Focusing on the interplay between interface chem-1 istry, electrochemistry, and integrated electronics, we show a 2 novel low-cost and flexible biosensing platform for continuous 3 glucose monitoring. The amperometric biosensing system features 4 a planar three-electrode structure on a plastic substrate, and 5 a wireless NFC-powered electronic system performing sensor AQ:1 6 analog front-end, A/D conversion, digital control, and display 7 tasks. The working electrode is made of electropolymerized poly 8 (3,4-ethylenedioxythiophene) film onto a polyethylene terephtha-9 late/gold electrode followed by immobilization of cross-linked 10 glucose oxidase by glutaraldehyde. The advantages offered by 11 such a device, including low-cost materials and instrumentation 12 as well as the good sensitivity of 9.24 µA/(mM • cm 2) are 13 promising tools for point-of-care monitoring. It is demonstrated 14 that the devices are good candidates for the development of 15 advanced sensing approaches based on the investigation of the 16 noise produced during operation (fluctuation-enhanced sensing).

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Section: A Cross-linked-gox/pedot Working Biosensor Interfacementioning

confidence: 96%

“…The C1 s spectrum of PEDOT (Fig. 5, a) shows six different peaks, three assigned to PEDOT (C-S, C = C-O, C-C-O, in a 1:1:1 ratio), the C-C/C-H and C = O ascribed to ubiquitous adventitious carbon moieties and a shake-up band [39]. The S 2p spectrum (Fig.…”

Section: A Cross-linked-gox/pedot Working Biosensor Interfacementioning

confidence: 99%

Amperometric Biosensor and Front-End Electronics for Remote Glucose Monitoring by Crosslinked PEDOT-Glucose Oxidase

et al. 2018

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“…In this respect, electrochemistry plays a fundamental role in both deposition and characterization of polymeric films. By electrochemical methods, it is indeed possible to copolymerize two different monomers with the goal of realizing copolymers with different and better properties than the respective homopolymers [9,10]. Among numerous polymeric conjugated systems studied to date, polyindenofluorenes attracted attention originally due to their good chemical stability and high luminescence quantum efficiency [11].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical polymerization of ambipolar carbonyl-functionalized indenofluorene with memristive properties

et al. 2019

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Carbonyl-functionalized indenofluorene was electropolymerized with a high faradaic efficiency of 85% and the solid state properties of the resulting polymeric thin films were investigated. They displayed modular optical properties depending on their oxidation state. The approach used for inorganic semiconductors was applied to polyindeonofluorene derivative. Mott-Schottky analysis evidenced a switching from p-type to n-type electrical conduction, suggesting an ambipolar behaviour of the polymer. As an application, flexible organic memristors were fabricated and resistive switching properties were observed.

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“…[1,2] Small moleculeso ffer great benefits due to their limited p-extended core, which can be readily modified with av ariety of functional groups to fine-tune their optoelectronic and physicochemical properties. [5][6][7][8][9] To this end, numerous molecular semiconductors have been developed and characterized in aw ide range of optoelectronic applications, such as OFETs, [10] organic photovoltaics (OPVs), [11] and organic lightemitting diodes( OLEDs) [12] and transistors (OLETs). [5][6][7][8][9] To this end, numerous molecular semiconductors have been developed and characterized in aw ide range of optoelectronic applications, such as OFETs, [10] organic photovoltaics (OPVs), [11] and organic lightemitting diodes( OLEDs) [12] and transistors (OLETs).…”

Section: Introductionmentioning

confidence: 99%

“…[3,4] In addition, the solubility,s ynthetic reproducibility, and final purity levels of small molecules can be superiort ot hose of macromolecules and polymers, which is very crucial for the realization of low-cost and high-performance plastic optoelectronics. [5][6][7][8][9] To this end, numerous molecular semiconductors have been developed and characterized in aw ide range of optoelectronic applications, such as OFETs, [10] organic photovoltaics (OPVs), [11] and organic lightemitting diodes( OLEDs) [12] and transistors (OLETs). [13] It is worth notingt hat, among these applications, p-conjugated small molecules have been even commercialized in active-matrix OLED displays as emissive and hole/electron transporting/ blockingl ayers.…”

Section: Introductionmentioning

confidence: 99%

A Solution‐Processable Liquid‐Crystalline Semiconductor for Low‐Temperature‐Annealed Air‐Stable N‐Channel Field‐Effect Transistors

et al. 2017

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A new solution-processable and air-stable liquid-crystalline n-channel organic semiconductor (2,2'-(2,8-bis(5-(2-octyldodecyl)thiophen-2-yl)indeno[1,2-b]fluorene-6,12-diylidene)dimalononitrile, α,ω-2OD-TIFDMT) with donor-acceptor-donor (D-A-D) π conjugation has been designed, synthesized, and fully characterized. The new semiconductor exhibits a low LUMO energy (-4.19 eV) and a narrow optical bandgap (1.35 eV). The typical pseudo-focal-conic fan-shaped texture of a hexagonal columnar liquid-crystalline (LC) phase was observed over a wide temperature range. The spin-coated semiconductor thin films show the formation of large (≈0.5-1 μm) and highly crystalline platelike grains with edge-on molecular orientations. Low-temperature-annealed (50 °C) top-contact/bottom-gate OFETs have provided good electron mobility values as high as 0.11 cm (V s) and high I /I ratios of 10 to 10 with excellent ambient stability. This indicates an enhancement of two orders of magnitude (100×) when compared with the β-substituted parent semiconductor, β-DD-TIFDMT (2,2'-(2,8-bis(3-dodecylthiophen-2-yl)indeno[1,2-b]fluorene-6,12-diylidene)dimalononitrile). The current rational alkyl-chain engineering route offers great advantages for D-A-D π-core coplanarity in addition to maintaining good solubility in organic solvents, and leads to favorable optoelectronic/physicochemical characteristics. These remarkable findings demonstrate that α,ω-2OD-TIFDMT is a promising semiconductor material for the development of n-channel OFETs on flexible plastic substrates and LC-state annealing of the columnar liquid crystals can lower the electron mobility for transistor-type charge transport.

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Symmetric naphthalenediimidequaterthiophenes for electropolymerized electrochromic thin films

Cited by 28 publications

References 59 publications

Amperometric Biosensor and Front-End Electronics for Remote Glucose Monitoring by Crosslinked PEDOT-Glucose Oxidase

Amperometric Biosensor and Front-End Electronics for Remote Glucose Monitoring by Crosslinked PEDOT-Glucose Oxidase

Electrochemical polymerization of ambipolar carbonyl-functionalized indenofluorene with memristive properties

A Solution‐Processable Liquid‐Crystalline Semiconductor for Low‐Temperature‐Annealed Air‐Stable N‐Channel Field‐Effect Transistors

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