Controlling the Organization of PEDOT:PSS on Cellulose Structures

Belaineh, Dagmawi; Andreasen, Jens Wenzel; Pališaitis, Justinas; Malti, Abdellah; Håkansson, Karl; Wågberg, Lars; Crispin, Xavier; Engquist, Isak; Berggren, Magnus

doi:10.1021/acsapm.9b00444

Cited by 51 publications

(84 citation statements)

References 63 publications

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“…PEDOT and CNFs have been combined to prepare a variety of organic electronic devices; an exemplary work of this was published by Malti et al in which the PEDOT‐CNF composite displayed unprecedented high conductivity of both ions and electrons . Recent studies also show that PEDOT can self‐assemble into interconnected, highly‐conducting structures along CNFs …”

Section: Introductionmentioning

confidence: 99%

“…[53,54] Recent studies also show that PEDOT can self-assemble into interconnected, highly-conducting structures along CNFs. [55,56] This study presents a novel and environment friendly method to prepare wet-stable organic aerogels. Gels of carboxymethylated CNFs and alginate were prepared at different ionic strengths and with countercations of different valencies.…”

Section: Introductionmentioning

confidence: 99%

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Ambient‐Dried, 3D‐Printable and Electrically Conducting Cellulose Nanofiber Aerogels by Inclusion of Functional Polymers

Françon

Wang

Marais

et al. 2020

Adv Funct Materials

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114

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This study presents a novel, green, and efficient way of preparing crosslinked aerogels from cellulose nanofibers (CNFs) and alginate using non‐covalent chemistry. This new process can ultimately facilitate the fast, continuous, and large‐scale production of porous, light‐weight materials as it does not require freeze‐drying, supercritical CO2 drying, or any environmentally harmful crosslinking chemistries. The reported preparation procedure relies solely on the successive freezing, solvent‐exchange, and ambient drying of composite CNF‐alginate gels. The presented findings suggest that a highly‐porous structure can be preserved throughout the process by simply controlling the ionic strength of the gel. Aerogels with tunable densities (23–38 kg m−3) and compressive moduli (97–275 kPa) can be prepared by using different CNF concentrations. These low‐density networks have a unique combination of formability (using molding or 3D‐printing) and wet‐stability (when ion exchanged to calcium ions). To demonstrate their use in advanced wet applications, the printed aerogels are functionalized with very high loadings of conducting poly(3,4‐ethylenedioxythiophene):tosylate (PEDOT:TOS) polymer by using a novel in situ polymerization approach. In‐depth material characterization reveals that these aerogels have the potential to be used in not only energy storage applications (specific capacitance of 78 F g−1), but also as mechanical‐strain and humidity sensors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ambient‐Dried, 3D‐Printable and Electrically Conducting Cellulose Nanofiber Aerogels by Inclusion of Functional Polymers

Françon

Wang

Marais

et al. 2020

Adv Funct Materials

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114

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“…The organization of the PEDOT-and PSS-rich phases can be further controlled by incorporating additional materials that dictates the 3D organisation at different length scales. Composite electrodes made of PEDOT:PSS and cellulose nanofibrils (CNF) show a different material organization with the PEDOT:PSS phases coated onto the cellulose nanofibrils 20 . The electrical and electrochemical characteristics of PEDOT:PSS films in aqueous electrolytes has been studied for various pH [21][22][23] , with good cycling stability within reasonable potentials in acidic media 24 .…”

Section: Introductionmentioning

confidence: 99%

Modelling of heterogeneous ion transport in conducting polymer supercapacitors

et al. 2021

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“…[28,29] In addition, PEDOT:PSS can be processed from solution, facilitating preparation of electrode films of various thicknesses, and providing a means to control surface resistance and confine the IR absorption to specific values matching the application. [39,40] The resulting electrode is further referred to as PEDOT:PSS-CNF. Further, PEDOT has itself also been demonstrated as a promising thermoelectric material.…”

Section: Introductionmentioning

confidence: 99%

“…The electrode consists of PEDOT:PSS blended with cellulose nanofibrils (CNF). The latter is included to enhance integrity and stability in water, and to promote a favorable nano‐/micro‐organization of PEDOT:PSS that enhances ionic conductivity . The resulting electrode is further referred to as PEDOT:PSS‐CNF.…”

Section: Introductionmentioning

confidence: 99%

Solar Heat‐Enhanced Energy Conversion in Devices Based on Photosynthetic Membranes and PEDOT:PSS‐Nanocellulose Electrodes

Méhes

Vagin

Mulla

et al. 2019

Advanced Sustainable Systems

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convert solar energy into electricity by leveraging the complex process of photosynthesis, useful both as energy generators and sensors for various physical inputs. [1][2][3][4][5][6][7][8][9] With accelerating climate change and growing demand for energy, such bio-based methods have been identified as a promising route toward "green" energy. [10] Thylakoid membranes (TMs), the compartments inside chloroplasts, algae, and cyanobacteria in which the light-dependent reactions of the photosynthetic energy conversion are initiated, constitute an interesting model system for biohybrid light-harvesting. Indeed, broad-spectrum light absorption, efficient water splitting, a near-unity light-to-charge conversion efficiency, optimized excitation energy and electron transport, photo damage protection, and self-organization and selfrepair, all being properties of TMs, are strongly desired attributes of future intelligent solar energy harvesting technology. However, integration of TMs and isolated photoprotein complexes with technology poses several challenges, including complex preparation, poor stability, and limited photocurrents. [11][12][13] To address these challenges, promising and novel biohybrid devices and electrodes have been demonstrated by wiring/coupling TMs to electrodes via oligoelectrolytes, [14] carbon nanotubes, [15] conducting polymers, [16] Energy harvesting from photosynthetic membranes, proteins, or bacteria through bio-photovoltaic or bio-electrochemical approaches has been proposed as a new route to clean energy. A major shortcoming of these and solar cell technologies is the underutilization of solar irradiation wavelengths in the IR region, especially those in the far IR region. Here, a biohybrid energyharvesting device is demonstrated that exploits IR radiation, via convection and thermoelectric effects, to improve the resulting energy conversion performance. A composite of nanocellulose and the conducting polymer system poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) is used as the anode in biohybrid cells that includes thylakoid membranes (TMs) and redox mediators (RMs) in solution. By irradiating the conducting polymer electrode by an IR light-emitting diode, a sixfold enhancement in the harvested bio-photovoltaic power is achieved, without compromising stability of operation.Investigation of the output currents reveals that IR irradiation generates convective heat transfer in the electrolyte bulk, which enhances the redox reactions of RMs at the anode by suppressing diffusion limitations. In addition, a fast-transient thermoelectric component, originating from the PEDOT:PSSnanocellulose-electrolyte interphase, further increases the bio-photocurrent. These results pave the way for the development of energy-harvesting biohybrids that make use of heat, via IR absorption, to enhance energy conversion efficiency.

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Controlling the Organization of PEDOT:PSS on Cellulose Structures

Cited by 51 publications

References 63 publications

Ambient‐Dried, 3D‐Printable and Electrically Conducting Cellulose Nanofiber Aerogels by Inclusion of Functional Polymers

Ambient‐Dried, 3D‐Printable and Electrically Conducting Cellulose Nanofiber Aerogels by Inclusion of Functional Polymers

Modelling of heterogeneous ion transport in conducting polymer supercapacitors

Solar Heat‐Enhanced Energy Conversion in Devices Based on Photosynthetic Membranes and PEDOT:PSS‐Nanocellulose Electrodes

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