Highly Flexible and Ultralight PVA‐co‐PE‐AgNW/MXene Composite Film with Low Filling for Multistage Electromagnetic Interference Shielding DOI Open Access

Dechang Tao,

Chenguang Yang, Can Chen

et al.

Small, Journal Year: 2024, Volume and Issue: 21(7)

Published: Dec. 29, 2024

Abstract A composite film with multistage mechanisms for effective electromagnetic interference (EMI) shielding in the ultra‐wide frequency of 8–20 GHz was designed. Poly(vinyl alcohol‐co‐ethylene) (PVA‐co‐PE) nanofibers and twill‐structured nylon 6 fabric are used as substrate filter film, respectively. Subsequently, a PVA‐co‐PE/silver nanowire (AgNW)/MXene (PVA/Ag/M) is prepared by vacuum filtration, templating, hot‐pressing. 2.5 wt.% AgNW/MXene content, EMI efficiency (SE), normalized SE (SE/t), absolute (SSE/t) 101.6 dB, 7008.3 dB cm −1 , 36501.5 2 g These results attributed to synergistic enabled twill gradient structure highly conductive. The surface promotes 95% wave adsorption, directing along interior, significantly increasing EM collision probability internal reflection times. rich number hydrogen bonds increase interfacial adhesion between layers enhance tensile stress up 26.8 MPa. PVA/Ag/M exhibits excellent Joule heating, rapid heat dissipation, non‐flammability, hydrophobicity, super‐flexibility, stability. This paper presents an fabrication strategy ultralight conformable low‐filling films high strength, SE, outstanding thermal performance.

Language: Английский

Recent Progress in Silver Nanowire‐Based Transparent Conductive Electrodes DOI Creative Commons

Jintao Wang,

Jiajun Fan, Tao Wan

et al.

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

In this work, the recent progress in silver nanowire (AgNW)‐based transparent conductive electrodes (TCEs) is summarized. First, AgNWs are compared with other mainstream materials, highlighting their superior conductivity, flexibility, and transparency, which make them prime candidates for application of next‐generation flexible electronic devices. The key synthesis strategies—including template‐based, hydrothermal/solvothermal, polyol methods—are then discussed how fabrication processes such as printing, spin coating, dip spray vacuum filtration govern electrical, optical, mechanical properties AgNW networks examined. Special attention given to composites carbon, polymers, metal oxides, underscoring these hybrid approaches boost durability, environmental stability. To illustrate AgNWs’ versatility, applications sensors, solar cells, skin, electromagnetic shielding, heating devices, nanogenerators, various electrode systems presented. Notably, capacity maintain functionality under deformation points broad potential wearable Despite advances, challenges remain. conclusion drawn by examining future prospects emerging fields smart textiles, advanced energy harvesting, electronics, emphasizing ongoing innovations composite engineering could further unlock impact on technologies.

Language: Английский

Citations

0

2D MXenes: Synthesis, Properties, and Applications in Silicon‐Based Optoelectronic Devices DOI Open Access
Wei Li, Zhiyuan Xu, Yu Yan

et al.

Small, Journal Year: 2025, Volume and Issue: 21(9)

Published: Jan. 16, 2025

Abstract MXenes, a rapidly emerging class of 2D transition metal carbides, nitrides, and carbonitrides, have attracted significant attention for their outstanding properties, including high electrical conductivity, tunable work function, solution processability. These characteristics made MXenes highly versatile widely adopted in the next generation optoelectronic devices, such as perovskite organic solar cells. However, integration into silicon‐based devices remains relatively underexplored, despite silicon's dominance semiconductor industry. In this review, timely summary recent progress utilizing Ti‐based particularly Ti 3 C 2 T x , is provided. The composition, synthesis methods, key properties that contribute to potential enhanced device performance are focused on. Furthermore, latest advancements MXene applications cells photodetectors discussed from fundamental applied perspectives. Finally, challenges future opportunities outlined.

Language: Английский

Citations

0

External Electric Field Enhanced Ti3C2 MXene Surface Passivation for Realizing Ultra‐Long Cycling Stability DOI
Weixin Wang,

Mingzhu Ma,

Yuting Song

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract External electric field (EEF), as a stimulating factor, is an effective method for optimizing the surface composition and structure of materials. Ti 3 C 2 MXene enriched with negatively charged functional groups (─OH, ─O, etc.) will exhibit high sensitivity to EEF. However, impact EEF on interaction mechanisms between guest ions remains unclear requires further investigation. Herein, density theory (DFT) employed simulate adsorption energies butyl trimethylammonium ion (BTA + ) surfaces under different intensities EEFs (±0.9, ±0.7, ±0.5, ±0.3, ±0.1, 0 V Å −1 ), indicating can effectively regulate adsorption. It increase encapsulation degree BTA surface, thereby enhancing passivation. Based theoretical predictions, quaternary‐ammonium chain‐lengths , DTA STA are selected unveil mechanism The applied‐EEF promotes formation Ti─O─N bonds ─OH ammonium construct more‐denser protective layer, leading enhancement passivation obviously increasing capacitance retention after 100,000 cycles (50.8% 97.5%). This work provides new pathway support MXene.

Language: Английский

Citations

0

Highly Flexible and Ultralight PVA‐co‐PE‐AgNW/MXene Composite Film with Low Filling for Multistage Electromagnetic Interference Shielding DOI Open Access

Dechang Tao,

Chenguang Yang, Can Chen

et al.

Small, Journal Year: 2024, Volume and Issue: 21(7)

Published: Dec. 29, 2024

Abstract A composite film with multistage mechanisms for effective electromagnetic interference (EMI) shielding in the ultra‐wide frequency of 8–20 GHz was designed. Poly(vinyl alcohol‐co‐ethylene) (PVA‐co‐PE) nanofibers and twill‐structured nylon 6 fabric are used as substrate filter film, respectively. Subsequently, a PVA‐co‐PE/silver nanowire (AgNW)/MXene (PVA/Ag/M) is prepared by vacuum filtration, templating, hot‐pressing. 2.5 wt.% AgNW/MXene content, EMI efficiency (SE), normalized SE (SE/t), absolute (SSE/t) 101.6 dB, 7008.3 dB cm −1 , 36501.5 2 g These results attributed to synergistic enabled twill gradient structure highly conductive. The surface promotes 95% wave adsorption, directing along interior, significantly increasing EM collision probability internal reflection times. rich number hydrogen bonds increase interfacial adhesion between layers enhance tensile stress up 26.8 MPa. PVA/Ag/M exhibits excellent Joule heating, rapid heat dissipation, non‐flammability, hydrophobicity, super‐flexibility, stability. This paper presents an fabrication strategy ultralight conformable low‐filling films high strength, SE, outstanding thermal performance.

Language: Английский

Citations

1