Lignin‐Based Vitrimer for High‐Resolution and Full‐Component Rapidly Recycled Liquid Metal Printed Circuit

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

Published: April 14, 2025

Abstract Room‐temperature liquid metals (RTLMs) exhibit inherent fluidity, metallic conductivity, remarkable stability, and recyclability, which indicate significant potential for applications in improving the efficiency of electronics recycling reducing costs. However, low viscosity RTLMs their poor interfacial adhesion to substrates typically necessitate utilization intricate fabrication processes. Here, a viscosity‐tunable, photothermal repairable, full‐component recyclable eutectic gallium–indium/epoxy‐modified lignin/polyethylene glycol diacid/ethylene vitrimer (EGaIn‐LPEv) is presented printed circuits. The system displays good stability tunable at room temperature because ultra‐high reactive site content modified lignin dual dynamic bonding by introduction ethylene glycol. EGaIn‐LPEv‐based circuit exhibits high resolution full component recovery up 7.6 µm 98.3 wt.%, respectively. As principal component, not only enhances system's green credentials but also endows it with an efficient repairable capability. reconnection damaged can be achieved 15 s through 808 nm infrared activation. This study opens new avenue development manufacturing processes sustainable application advanced, high‐resolution, fully recycled electronic devices.

Language: Английский

Unveiling the Effect of Polymerization Values on the Crystallization Behavior of Perovskite Films for Efficient and Stable Solar Cells

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

Published: April 26, 2025

Abstract Obtaining high‐quality perovskite films is crucial for reducing non‐radiative recombination and improving device performance. As reported, the crystallization process of can be effectively tailored by introducing multifunctional additives. In this work, polyvinyl pyrrolidone (PVP) with varying degrees polymerization (DP) values (K15, K30, K90) are systematically screened utilized as an additive to regulate defect density control films. This regulation achieved through coordination interactions between perovskites their multi‐carbonyl groups PVP. Among selected polymers, K30 carbonyl polymer exhibits a suitable viscosity bind strength, which facilitated significant delay in intermediate phase transition accelerated nucleation. result, enhanced crystallinity, prolonged PL lifetime, no residual PbI 2 achieved. The K30‐treated MA‐free demonstrated PCE 24.16% remarkable V OC 1.2 V. Moreover, strategy extended RbCsFAMA quadruple‐cation films, delivering impressive 25.35% minimal deficit 0.35 work provides effective approach modulate crystal growth highlights significance DP polymeric

Language: Английский

Interface contact optimization and defect passivation via Tyramine Hydrochloride for efficient and stable inverted perovskite solar cells

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110944 - 110944

Published: April 1, 2025

Language: Английский