Mass and charge transport in highly mesostructured polyelectrolyte/electroactive-surfactant multilayer films

Piccinini, Esteban; González, G.; Azzaroni, Omar; Battaglini, Fernando

doi:10.1016/j.jcis.2020.07.060

Cited by 9 publications

(7 citation statements)

References 108 publications

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Section: ■ Introductionmentioning

confidence: 99%

“…31 For instance, it has been shown that the presence of surfactants in LbL assemblies has a strong impact on structure−property relationship composite. 30,32,33 On the other hand, the surfactant character may disperse building blocks and enhance the interchain interactions between conducting polymer. 34 In this sense, the integration of CTAB into the LbL structure may promote structural changes with implications on the electronic conductivity of the films compared with the long chain polyelectrolyte PDADMAC.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In this regard, we comparatively investigated two combinations: PEDOT:PSS assembled with the polyelectrolyte PDADMAC and PEDOT:PSS assembled with the surfactant cetyltrimethylammonium bromide (CTAB). Both cationic blocks are electrochemically inactive and have positive charge consisting of quaternary amines but with different mesogenic and surfactant characters, which may lead to different structure. , On the one side, the mesogenic character is the property of some compounds to promote molecular order or spatial orientation of the structures generated in combination with other reagents such as polymers . For instance, it has been shown that the presence of surfactants in LbL assemblies has a strong impact on structure–property relationship composite. ,, On the other hand, the surfactant character may disperse building blocks and enhance the interchain interactions between conducting polymer .…”

Section: Introductionmentioning

confidence: 99%

“…Both cationic blocks are electrochemically inactive and have positive charge consisting of quaternary amines but with different mesogenic and surfactant characters, which may lead to different structure. , On the one side, the mesogenic character is the property of some compounds to promote molecular order or spatial orientation of the structures generated in combination with other reagents such as polymers . For instance, it has been shown that the presence of surfactants in LbL assemblies has a strong impact on structure–property relationship composite. ,, On the other hand, the surfactant character may disperse building blocks and enhance the interchain interactions between conducting polymer . In this sense, the integration of CTAB into the LbL structure may promote structural changes with implications on the electronic conductivity of the films compared with the long chain polyelectrolyte PDADMAC.…”

Section: Introductionmentioning

confidence: 99%

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Empowering Bioelectronics with Supramolecular Nanoarchitectonics: PEDOT-Based Organic Electrochemical Transistors with Tunable Electronic Properties

Diforti,

Piccinini,

Allegretto

et al. 2024

ACS Appl. Electron. Mater.

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Organic bioelectronics has the potential to unlock the utmost innovation in medicine and healthcare through the combination of biological and digital realms. Particularly, organic electrochemical transistors (OECTs) are a promising class of bioelectronics transducer. Nevertheless, a fabrication strategy is needed to lower the access barrier to the OECTs, thereby expediting product development and innovation. In this work, we present a supramolecular approach with simple equipment to prepare conductive films based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), PEDOT:PSS, integrated with cationic molecular blocks for OECTs manufacturing. By employing the layer-by-layer (LbL) self-assembly technique, we facilely prepared transistor channels of PEDOT:PSS integrated with either the surfactant cetyltrimethylammonium bromide, CTAB, or the polyelectrolyte poly(diallyldimethylammonium chloride), PDADMAC, with nanometric precision. Both cationic blocks feature positively charged quaternary amines but possess different mesogenic and surfactant features. The PEDOT:PSS/CTAB system yields an electrical conductivity of 275 S m −1 , which is 4 orders of magnitude higher than those integrated with PDADMAC (0.0531 S m −1 ). This enhancement is attributed to CTAB integration, which boosts the PEDOT:PSS charge transport, while PDADMAC diminishes it. The electronic performance indicators of OECTs (current at the on-state, I max , threshold potential, V TH , transconductance, g m ) are easily tuned by adjusting the thickness of the transistor channel film. The cycling stability of the transistor channel is 8-fold enhanced by coating it with a protective layer using nonelectroactive polymers. These OECTs exhibit a g m of 2.21 mS, a μC* product (μ is the hole mobility, and C* is the capacitance per unit of volume) of 0.23 F cm −1 V −1 s −1 , and on-and off-switching times, τ, of 24.2 and 12.3 ms, respectively. Their performance was comparable to or better than OECTs with channels prepared using techniques based on equipment of higher complexity and cost. Finally, we demonstrate the utility of these facilely prepared OECTs in biosensing the neurotransmitter dopamine with an exceptional sensitivity of 279 mV/decade and good operation range (1−300 μM) and reversibility.

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Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Empowering Bioelectronics with Supramolecular Nanoarchitectonics: PEDOT-Based Organic Electrochemical Transistors with Tunable Electronic Properties

Diforti,

Piccinini,

Allegretto

et al. 2024

ACS Appl. Electron. Mater.

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“…Compared to other fabrication techniques used for thin films, LbL assembly offers a significant level of versatility in terms of component applicability and technical feasibility. For instance, LbL assembly has been applied to a huge variety of target materials, including simple and functional polymers [39][40][41][42][43][44][45][46][47][48][49][50], macromolecular complexes [51][52][53][54][55], microgels [56], polymersomes [57], surfactant-based mesostructures [58][59][60][61][62], inorganic nanostructures [63,64], and bioactive elements [65,66], among other building blocks.…”

Section: Introductionmentioning

confidence: 99%

Field-effect transistors engineered via solution-based layer-by-layer nanoarchitectonics

Azzaroni,

Piccinini,

Fenoy

et al. 2023

Nanotechnology

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The layer-by-layer (LbL) technique has been proven to be one of the most versatile approaches in order to fabricate functional nanofilms. The use of simple and inexpensive procedures as well as the possibility to incorporate a very wide range of materials through different interactions have driven its application in a wide range of fields. On the other hand, field-effect transistors (FETs) are certainly among the most important elements in electronics. The ability to modulate the flowing current between a source and a drain electrode via the voltage applied to the gate electrode endow these devices to switch or amplify electronic signals, being vital in all of our everyday electronic devices. In this topical review, we highlight different research efforts to engineer field-effect transistors using the LbL assembly approach. We firstly discuss on the engineering of the channel material of transistors via the LbL technique. Next, the deposition of dielectric materials through this approach is reviewed, allowing the development of high-performance electronic components. Finally, the application of the LbL approach to fabricate FETs-based biosensing devices is also discussed, as well as the improvement of the transistor’s interfacial sensitivity by the engineering of the semiconductor with polyelectrolyte multilayers.

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Supramolecular Electroactive Materials via Ionic Self‐assembly of Polyelectrolyte–surfactant Complexes – Chemistry, Practical Aspects, and Applications

Cortez

Marmisollé

Battaglini

et al. 2023

Supramolecular Nanotechnology

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Mass and charge transport in highly mesostructured polyelectrolyte/electroactive-surfactant multilayer films

Cited by 9 publications

References 108 publications

Empowering Bioelectronics with Supramolecular Nanoarchitectonics: PEDOT-Based Organic Electrochemical Transistors with Tunable Electronic Properties

Empowering Bioelectronics with Supramolecular Nanoarchitectonics: PEDOT-Based Organic Electrochemical Transistors with Tunable Electronic Properties

Field-effect transistors engineered via solution-based layer-by-layer nanoarchitectonics

Supramolecular Electroactive Materials via Ionic Self‐assembly of Polyelectrolyte–surfactant Complexes – Chemistry, Practical Aspects, and Applications

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