Core–Shell Engineered Fillers Overcome the Electrical-Thermal Conductance Trade-Off DOI

PeiChi Liao,

Haichang Guo, Hongyu Niu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(44), P. 30593 - 30604

Published: Oct. 24, 2024

The rapid development of modern electronic devices increasingly requires thermal management materials with controllable electrical properties, ranging from conductive and dielectric to insulating, meet the needs diverse applications. However, highly thermally usually have a high conductivity. Intrinsically conductive, but electrically insulating are still limited few kinds materials. To overcome electrical-thermal conductance trade-off, here, we report facile Pechini-based method prepare multiple core (metal)/shell (metal oxide) engineered fillers, such as aluminum-oxide-coated beryllium-oxide-coated Ag microspheres. In contrast previous in situ growth which mainly focused on small-sized spheres specific coating materials, our combined ultrafast joule heating treatment is more versatile robust for varied-sized, especially large-sized core-shell fillers. Through size compounding, as-synthesized core-shell-filled epoxy composites exhibit isotropic conductivity (∼3.8 W m-1 K-1) while maintaining resistivity (∼1012 Ω cm) good flowability, showing better heat dissipation properties than commercial packaging successful preparation these fillers endows controlled emerging package applications, demonstrated circuit board battery management.

Language: Английский

Transition metal-anchored BN tubes as single-atom catalysts for NO reduction reaction: A study of DFT and deep learning DOI
Jiake Fan, Lei Yang, Weihua Zhu

et al.

Fuel, Journal Year: 2025, Volume and Issue: 386, P. 134302 - 134302

Published: Jan. 7, 2025

Language: Английский

Citations

2
Boron nitride nanosheets, quantum dots, and dots: Synthesis, properties, and biomedical applications DOI Creative Commons
Raksha Dubey,

Matthew Cowles,

Zohreh Salimi

et al.

APL Materials, Journal Year: 2025, Volume and Issue: 13(4)

Published: April 1, 2025

This review examines three aspects of hexagonal boron nitride (h-BN) nanomaterials: properties, synthesis methods, and biomedical applications. We focus the scope on types h-BN nanostructures: nanosheets (BNNSs, few-layered h-BN, larger than ∼100 nm in lateral dimensions), quantum dots (BN QDs, smaller ∼10 all dimensions, with inherent excitation-dependent fluorescence), dots, wide bandgap without noise fluorescence). The methods BNNSs, BN are summarized top-down bottom-up approaches. Future research should scalability quality products, which essential for reproducible Regarding applications, BNNSs were used as nanocarriers drug delivery, mechanical reinforcements (bone tissue engineering), antibacterial QDs still limited non-specific bioimaging small dimension to construct high-brightness probes (HBPs) gene sequence detections inside cells. To differentiate from other two-dimensional materials, future applications using unique properties nanostructures, such piezoelectricity, neutron capture therapy (BNCT), their electrically insulating optically transparent nature. Examples would be combining BNCT chemo delivery form HBPs enhanced fluorescence by preventing quenching dots.

Language: Английский

Citations

2
Fusing-smashing exfoliation for high-aspect-ratio hexagonal boron nitride nanosheets available to highly-thermoconductive polymeric composites DOI

Weilong Wu,

Tianzhuo Zhan,

Peng Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161451 - 161451

Published: March 1, 2025

Language: Английский

Citations

1
Constructing the Snail Shell-Like Framework in Thermal Interface Materials for Enhanced Through-Plane Thermal Conductivity DOI
Zhiguo Wang,

Yaonan Huo,

Hai‐Feng Nan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(36), P. 48386 - 48394

Published: Aug. 29, 2024

Melioration of the through-plane thermal conductivity (TC) interface materials (TIMs) is a sore need for efficient heat dissipation to handle an overheating concern high-power-density electronics. Herein, we constructed snail shell-like conductive framework facilitate vertical conduction in TIMs. With inspiration from spirally growing calcium carbonate platelets shells, facile double-microrod-assisted curliness method was developed coil boron nitride nanosheet (BNNS)/aramid nanofiber (ANF) laminates where interconnected BNNSs lie along horizontal plane. Thus, alignment resultant TIM achieved, exhibiting TC enhancement ∼100% compared counterpart with randomly distributed at same BNNS addition (50 wt %). The Foygel's nonlinear model revealed that this unique reduced interfacial resistance by 4 orders magnitude. Our showed superior efficiency, leading temperature reduction 42.6 °C LED chip aforementioned counterpart. work paves valuable way fabricating high-performance TIMs ensure reliable operation electrical devices.

Language: Английский

Citations

6
Highly Thermally Conductive Boron Nitride Fiber DOI

PeiChi Liao,

Haiyu He, Haichang Guo

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Innovative thermal management fiber materials have emerged as a solution to address challenges across diverse fields, ranging from personal comfort and electronic device cooling aerospace engineering. While graphene is known for its higher conductivity over conventional carbon fiber, boron nitride (BN) has received much less attention in one-dimensional form, despite combined high notable insulating properties. Previous studies mainly focused on composite fibers with BN nanosheets embedded polymer matrix. In contrast, pure consequent investigations single-fiber level barely been reported. this study, we report the fabrication of continuous, via polymer-derived ceramic approach thermally conductive fillers. Comprehensive structural characterizations confirm fibers' quality purity without apparent contamination. With big-MEMS method developed, single precisely measured reaches an impressive 54 W m-1 K-1. Furthermore, using stacking-cutting method, resulting vertically aligned fiber-reinforced epoxy demonstrates 24 K-1, showing immense potential usage interface material. This work explores electrically applications.

Language: Английский

Citations

0
MXene 3D/4D Printing: Ink Formulation and Electrochemical Energy Storage Applications DOI Creative Commons
Shaista Nouseen, Martin Pumera

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

Published: Feb. 17, 2025

Abstract 2D MXenes are a rapidly expanding class of materials with broad spectrum electrochemical applications, particularly in the energy storage area. Concurrently, 3D and 4D printing techniques have garnered significant research attention offering customized designs, rapid prototyping, cost‐effective scalable production. Integrating MXene into 3D/4D printed structures offers promising path for development advanced devices, combination outstanding properties versatility technology. The present article provides comprehensive report on technologies, focusing their rheological characteristics, surface chemistry, ink formulation, stability, storage. Different techniques, including printing, screen inkjet continuous liquid interface production (CLIP) methods—are discussed context integration. Additionally, application such as supercapacitors batteries, is explored along future directions evolving fields.

Language: Английский

Citations

0
Coupling Strategies of Multi‐Physical Fields in 2D Materials‐Based Photodetectors DOI Open Access
Ruofei Xing, Xinglong Zhang,

Xueshuo Fan

et al.

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

Published: March 9, 2025

2D materials possess exceptional carrier transport properties and mechanical stability despite their ultrathin nature. In this context, the coupling between polarization fields photoelectric has been proposed to modulate physical of materials, including energy band structure, mobility, as well dynamic processes photoinduced carriers. These strategies have led significant improvements in performance, functionality, integration density -based photodetectors. The present review introduces field with four fundamental fields, delivered from dielectric, piezoelectric, pyroelectric, ferroelectric effects, focusing on synergistic mechanisms, distinctive properties, technological merits advanced photodetection applications. More importantly, it sheds light new path material synthesis novel structure design improve efficiency Then, research advances synergy multi-polarization effects effect domain bionic photodetectors are highlighted. Finally, outlines future perspectives materials-based proposes potential solutions address challenges issues area. This comprehensive overview will guide futural applied that capitalizes for sensitive intelligent photodetection.

Language: Английский

Citations

0
Synthesis and characterization of acrylic hexagonal boron nitride nanosheets for thermally stable polymethylmethacrylate composites DOI
Tuba Çakır Çanak,

Büşra Akın Özmen,

Tarık Eren

et al.

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112323 - 112323

Published: April 1, 2025

Language: Английский

Citations

0
High-throughput Theoretical Exploration of Multifunctional Planar MBenes: Magnetism, Topology, Superconductivity, and Anode Applications DOI Creative Commons
Xiaodong Lv, Ting Han, Rong Liu

et al.

Advanced Powder Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100297 - 100297

Published: April 1, 2025

Language: Английский

Citations

0
Structural, electrical, phonon, and optical properties of 2D metals: A DFT calculation DOI Creative Commons

Dongbo Li,

Long Wu,

Huang Kai-feng

et al.

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(16)

Published: April 28, 2025

We investigated the structure, electrical, phonon, and optical properties of 2D metals (goldene, silverene, copperene) by density functional theory. The results electronic band structure reveal that goldene copperene exhibit metallic characteristics, whereas silverene demonstrates semimetallic properties. states show s–d-orbital coupling is strongest in goldene, followed weakest copperene. has effect softening phonons reducing lattice thermal conductivity. Phonon property analysis there are no imaginary frequencies phonon dispersion curves copperene, indicating their dynamic stability. high absorptivity, reflectivity, conductivity, refractive index low-frequency region, three gradually converge to same as frequency increases. This research provides a theoretical foundation guidance for exploring novel two-dimensional metal materials.

Language: Английский

Citations

0