High Conductivity in PEDOT:PSS Thin‐Films by Secondary Doping with Superacid Vapor: Mechanisms and Application to Thermoelectrics DOI Creative Commons
Juhyung Park, Jeong Han Song,

Jae Gyu Jang

et al.

Advanced Physics Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Abstract Poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), a conductive polymer, have attracted attention as promising materials for future electronic applications, owing to its tunable doping level high electrical conductivity ( σ ) through simple post‐treatments. A novel post‐treatment method conventionally doped PEDOT:PSS thin‐films (immersed in methanol) is presented further enhance via with the superacid, trifluoromethanesulfonic acid (TFSA). The origin of improved treated this dual approach investigated. study reveals that superacid vapor treatment uniquely enhances lamellar stacking PEDOT chains and induces vertical phase separation between PSS, leading carrier mobility by factor three. This behavior differs from conventional post‐treatments, making combined methanol immersion TFSA an effective strategy achieving ≈2053 S cm −1 , these films ideal candidates various polymer‐based electronics. Furthermore, findings demonstrate thermoelectric power subjected secondary exhibits threefold enhancement (104.2 µW m K −2 compared samples solely (29.7 ). resulting insights will advance understanding mechanisms charge transport polymers.

Language: Английский

Diphosphonic acid-modified PEDOT:PSS for enhanced stability and efficiency in organic solar cells: Achieving 19.5% PCE through PSS erosion mitigation and interface Optimization DOI

Shanlei Xu,

Renyong Geng,

Xingting Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161453 - 161453

Published: March 1, 2025

Language: Английский

Citations

0
Electrically Conductive Functional Polymers and Application Progress in Lithium Batteries DOI Open Access
Zhe Huang,

Mengting Lyu,

Nan Meng

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(6), P. 778 - 778

Published: March 14, 2025

Electrically conductive functional polymers (ECFPs) have attracted much attention not only for their electron conductivity but also versatile properties, including redox activity, flexibility, and designability. These attributes are expected to enhance the energy density mechanical compatibility of lithium batteries while mitigating safety risks associated with such batteries. Furthermore, ECFPs key candidates as active materials, current collectors, coatings, binders, additives in storage conversion systems, especially development flexible batteries, dry electrodes, solid-state However, low conductivity, poor environmental stability, instability dopants, high costs limit usage production large-scale applications. In this review, two major electrically polymer species conjugated radical structures focused on reveal mechanisms. Moreover, strategies improving performance these summarized, which include molecular design optimize enhanced addition hydrophobic groups or protective coatings improve resistance, a side-chain that is self-doping introduce high-stability multifunctional systems through compositing two-dimensional carbon-based materials. Additionally, green processes renewable resource applications introduced aim creating cost-effective sustainable preparation technologies. The advancement structural engineering optimization will facilitate potentially expansive devices.

Language: Английский

Citations

0
Preventing Benzoquinone‐Based Catalyst Aggregation Enables the One‐Step Synthesis of Highly Conductive Poly(benzodifurandione) without Post‐Reaction Purification DOI Creative Commons
Jun‐Da Huang, Qifan Li, Qingqing Wang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Conductive polymers have become crucial in advancing various electronic applications. While p‐type materials like poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) are widely used and produced at scale, the development of high‐performance n‐type has lagged due to challenges synthesis scalability. In this work, a novel method is introduced synthesize highly conductive polymer poly(benzodifurandione) (PBFDO) using α‐tocopherylquinone (α‐TQ) as catalyst. This approach eliminates need for post‐reaction dialysis, major obstacle large‐scale PBFDO production. By preventing catalyst aggregation, high electrical conductivity (>1320 S cm −1 ) achieved, which remains stable air over 180 d, significantly simplifying process. The α‐TQ‐synthesized also exhibits excellent thermoelectric properties, with power factor exceeding 100 µW m K −2 , placing it among highest‐performing polymers. Additionally, residual α‐TQ acts plasticizer, reducing elastic modulus by tenfold while maintaining conductivity, making material suitable mechanically compliant electronics. Similarly, lowers thermal more than an order magnitude. process scalable, demonstrated producing high‐conductivity ink 20 L reactor. work presents efficient sustainable

Language: Английский

Citations

0
Electrospun Conductive Polymer Scaffolds: Tailoring Fiber Diameter and Electrical Properties for Tissue Engineering Applications DOI Creative Commons

Zary Adabavazeh,

Narges Johari, Francesco Baino

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112596 - 112596

Published: April 1, 2025

Language: Английский

Citations

0
Optimization of the thermoelectric performance of PEDOT:PSS–tetrahedrite (Cu12+xSb4S13) nanocomposites DOI Creative Commons
Adrianna Lis, Karolina Zazakowny, Karol Wolski

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163468 - 163468

Published: May 1, 2025

Language: Английский

Citations

0
Conjugated Group Tuning of Self‐Assembled Monolayer for Efficient Hole‐Transport Layer in Organic Solar Cells DOI

Shuangjiao Gao,

Ruixiang Peng,

Yi Qiu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Abstract P‐type carbazole‐derived self‐assembled monolayers (SAMs) have garnered significant attention as promising hole transport layers (HTLs) in the development of highly efficient organic solar cells (OSCs). However, it still lacks effective navigation to modulate terminal functional groups SAMs achieve a compromise between highest occupied molecular orbital (HOMO) energy levels and self‐aggregation behavior. Herein, are adjusted three synthesized, namely, t‐Bu‐3PACz, Ph‐3PACz, Bz‐3PACz comprehensively investigate their intrinsic properties influence on photovoltaic performance. Among them, Ph‐3PACz featuring an exceptionally suitable conjugated region steric hindrance exhibits best compatibility with active layer, superior electrical conductivity, HOMO level aligning polymer donor, ordered film packing. As result, devices based exhibit open‐circuit voltage ( V OC ) 0.850 V, short‐circuit current density J SC 28.7 mA cm −2, fill factor (FF) 78.5%, thus resulting remarkable power conversion efficiency (PCE) 19.2%. This work provides easily navigable method packing SAMs, thereby achieving OSCs.

Language: Английский

Citations

2
Unravelling the Electrical Field Induced Ion Migration in Flexible OLEDs with PEDOT:PSS Electrodes DOI
Chenxi Liu, Mengze Li, Yifan Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(45), P. 62469 - 62480

Published: Nov. 5, 2024

The development of flexible organic light-emitting didoes (FOLEDs) has spurred the research on transparent electrodes (FTEs). Poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) is one most attractive FTEs due to its adjustable conductivity and compatibility with low-cost large-scale solution processing techniques. Significantly, highly efficient FOLEDs have been achieved modified PEDOT:PSS FTEs. However, intrinsic mechanisms that contribute device degradation utilizing not yet fully elucidated. In this work, three ionic liquids (ILs) are used enhance electrical mechanical flexibility Simultaneously, influence electric field induced ion migration from operational stability unraveled. We find ILs larger radii higher steric hindrance beneficial suppressing improving FOLEDs. Finally, large-area high-performance based IL 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide FTEs, which demonstrate a high current efficiency 98.1 cd/A longer lifetime 66.7 min. This finding may promote practical application in optoelectronics.

Language: Английский

Citations

0
High Conductivity in PEDOT:PSS Thin‐Films by Secondary Doping with Superacid Vapor: Mechanisms and Application to Thermoelectrics DOI Creative Commons
Juhyung Park, Jeong Han Song,

Jae Gyu Jang

et al.

Advanced Physics Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Abstract Poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), a conductive polymer, have attracted attention as promising materials for future electronic applications, owing to its tunable doping level high electrical conductivity ( σ ) through simple post‐treatments. A novel post‐treatment method conventionally doped PEDOT:PSS thin‐films (immersed in methanol) is presented further enhance via with the superacid, trifluoromethanesulfonic acid (TFSA). The origin of improved treated this dual approach investigated. study reveals that superacid vapor treatment uniquely enhances lamellar stacking PEDOT chains and induces vertical phase separation between PSS, leading carrier mobility by factor three. This behavior differs from conventional post‐treatments, making combined methanol immersion TFSA an effective strategy achieving ≈2053 S cm −1 , these films ideal candidates various polymer‐based electronics. Furthermore, findings demonstrate thermoelectric power subjected secondary exhibits threefold enhancement (104.2 µW m K −2 compared samples solely (29.7 ). resulting insights will advance understanding mechanisms charge transport polymers.

Language: Английский

Citations

0