Flexible, Transparent and Highly Conductive Polymer Film Electrodes for All-Solid-State Transparent Supercapacitor Applications

Guan, Xin; Pan, Lujun; Fan, Zeng

doi:10.3390/membranes11100788

Cited by 20 publications

(9 citation statements)

References 52 publications

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“…NAF-D, in particular, is found to outperform both NAF and NAF-E, with the areal capacitance reaching 22.2 ± 0.8 mF cm –2 at a scan rate of 10 mV s –1 . Other literature proceedings report the areal capacitance of pristine PEDOT/PSS between 4 mF cm –2 and 10 mF cm –2 , evidencing the efficiency of Nafion doping and DMSO treatment in the increase of the capacitive character of PEDOT, which could be partially related to the increase of its electroactive surface area (Figure S1).…”

Section: Resultsmentioning

confidence: 66%

PEDOT:Nafion for Highly Efficient Supercapacitors

Skorupa,

Karoń,

Marchini

et al. 2024

ACS Appl. Mater. Interfaces

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Supercapacitors offer notable properties as energy storage devices, providing high power density and fast charging and discharging while maintaining a long cycling lifetime. Although poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT/PSS) has become a gold standard among organic electronics materials, researchers are still investigating ways to further improve its capacitive characteristics. In this work, we introduced Nafion as an alternative polymeric counterion to PSS to form highly capacitive PEDOT/Nafion; its advantageous supercapacitive properties were further improved by treatment with either dimethyl sulfoxide or ethylene glycol. Accordingly, electrochemical characterization of PEDOT/Nafion films revealed their high areal capacitance (22 mF cm −2 at 10 mV/s) and low charge transfer resistance (∼380 Ω), together with excellent volumetric capacitance (74 F cm −3 ), Coulombic efficiency (99%), and an energy density of 23.1 ± 1.5 mWh cm −3 at a power density of 0.5 W cm −3 , resulting from a more effective ion diffusion inside the conductive film, as confirmed by the results of spectroscopic studies. A proof-of-concept symmetric supercapacitor based on PEDOT/Nafion was characterized with a specific capacitance of approximately 15.7 F g −1 and impressive long-term stability (Coulombic efficiency ∼99% and capacitance ∼98.7% after 1000 charging/discharging cycles), overperforming the device based on PEDOT/PSS.

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Section: Resultsmentioning

confidence: 66%

PEDOT:Nafion for Highly Efficient Supercapacitors

Skorupa,

Karoń,

Marchini

et al. 2024

ACS Appl. Mater. Interfaces

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“…The Ragone plot for the fabricated SC was also obtained to compare its energy storage performance with that of the previously reported literature (Figure S9). The obtained specific energy and power density for Ag NWs(0.1%):(PEDOT:PSS)-based mSC were relatively higher than that reported in most of the literature. ,,,− The comparison was done with both film and mSCs, where film SCs are defined as having an out-of-plane configuration obtained by sandwiching an electrolyte between two active electrodes, and mSC is defined as having an in-plane electrode configuration comprising an IDE covered with an electrolyte. The structure of mSCs makes their integration compatible with flexible/wearable electronics with no electrical short-circuit issues.…”

Section: Resultsmentioning

confidence: 87%

Printed Silver Nanowire-PEDOT:PSS Composite Electrodes for Flexible Transparent Microsupercapacitor Applications

Sharma,

Koshy,

Kandregula

et al. 2023

ACS Appl. Energy Mater.

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The integration of microsupercapacitors (mSCs) with flexible/wearable electronic devices can greatly advance the capabilities of these devices. In this work, a robust flexible transparent mSC is constructed using silver nanowires (Ag NWs) combined with a conducting polymer, poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS), which exhibits excellent electrochemical stability and cyclability. Typically, the fabrication of such composite electrodes for supercapacitors (SCs) is a multistep process requiring electro/in situ polymerization, whereas in this work, a simple two-step direct ink writing is adopted. An ink made of Ag NWs and PEDOT:PSS is used to print the electrodes in an interdigitated design. These are then coated by a [poly(vinyl alcohol)]/H 3 PO 4 (orthophosphoric acid) polymer electrolyte to obtain the mSC with a transparency of 84.6% at 550 nm. The optical, electrical, and electrochemical properties of the mSC are optimized by varying the concentration of Ag NWs in PEDOT:PSS. The charge-transfer resistance decreases, and the electrochemically active surface area increases with the concentration of Ag NWs. Compared with pure PEDOT:PSS electrodes, the composite electrodes exhibit significantly lower internal resistance and nearly 2.5 times higher areal capacitance. The mSC also retains its capacitance with increasing current densities, operating in a fixed voltage window of 1.2 V. The device shows excellent electrochemical stability over 10000 charge−discharge cycles along with excellent mechanical flexibility. These results show that a Ag NWs:(PEDOT:PSS)-based mSC can act as a good flexible and transparent energy source for wearable electronic applications.

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“…The deviation of CV curves was mainly due to the controlled ion diffusion process impeding the accessibility of ions and active sites and causing the charge collection at the solid/ liquid interface, which increased the internal diffusion resistance of the electrode. There are no obvious redox peak observed, suggesting that the fast electron and ion transfer throughout the electrodes [29][30][31]. The charge-discharge performance of PPy: PSS/CNP-4 is shown in Fig.…”

Section: Electrochemical Characterizationmentioning

confidence: 98%

Flexible freestanding conductive nanopaper based on PPy:PSS nanocellulose composite for supercapacitors with high performance

et al. 2022

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A freestanding, binder-free flexible polypyrrole: polystyrene sulfonate/cellulose nanopaper (PPy:PSS/CNP) electrode is successfully fabricated by a low-cost, simple, and fast vacuum filtration method for the first time. The hierarchical structure of CNP with high surface area and good mechanical strength not only provides a high electroactive region and shortens the diffusion distance of electrolyte ions, but also mitigates the volumetric expansion/shrinkage of the PPy during the charging/discharging process. The optimized PPy:PSS/CNP exhibits a high areal specific capacitance of 3.8 F cm −2 (corresponding to 475 F cm −3 and 240 F g −1 ) at 10 mV s −1 and good cycling stability (80.9% capacitance retention after 5000 cycles). The cyclic voltammetry curves of PPy:PSS/CNP at different bending angles indicate prominent flexibility and electrochemical stability of the electrode. Moreover, a symmetric supercapacitor device is assembled and delivers a high areal energy density of 122 μW h cm −2 (15 W h cm −3 ) at a power density of 4.4 mW cm −2 (550 mW cm −3 ), which is superior to other cellulose-based materials. The combination of high supercapacitive performance, flexibility, easy fabrication, and cheapness of the PPy: PSS/CNP electrodes offers great potential for developing the next generation of green and economical portable and wearable consumer electronics.

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Flexible, Transparent and Highly Conductive Polymer Film Electrodes for All-Solid-State Transparent Supercapacitor Applications

Cited by 20 publications

References 52 publications

PEDOT:Nafion for Highly Efficient Supercapacitors

PEDOT:Nafion for Highly Efficient Supercapacitors

Printed Silver Nanowire-PEDOT:PSS Composite Electrodes for Flexible Transparent Microsupercapacitor Applications

Flexible freestanding conductive nanopaper based on PPy:PSS nanocellulose composite for supercapacitors with high performance

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