Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 164290 - 164290
Опубликована: Май 1, 2025
Язык: Английский
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 164290 - 164290
Опубликована: Май 1, 2025
Язык: Английский
RSC Advances, Год журнала: 2025, Номер 15(13), С. 9854 - 9863
Опубликована: Янв. 1, 2025
Copper selenide (Cu2Se) has been extensively studied due to its promising thermoelectric properties in bulk form. However, the miniaturization of devices using thin films is highly desired for smart applications. To date, there are few reports on composite Cu2Se applications, primarily their lower conversion efficiency. In present work, Cu2Se-based multiphase nanocomposites presented demonstrate enhanced The detailed structural characterization reveals that thermally evaporated Te-doped have compositions. electrical conductivity decreases after Te-doping, enormous scattering carriers against secondary phases and lattice defects. upon further increasing Te-doping concentration, both Seebeck coefficient start simultaneously, formation Cu2Te nanoclusters Te-Se solid solution, matrix Cu2Se. We emphasize power factor, with highest value reaching 234.0 μW mK-2 at 400 K, as a key indicator performance. A slightly overestimated dimensionless figure-of-merit (ZT) 0.2 was obtained factor merely electronic part thermal conductivity. current synthesis route synergizes effects system film research enhance efficiency related materials classes.
Язык: Английский
Процитировано
0Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер 718, С. 136957 - 136957
Опубликована: Апрель 15, 2025
Язык: Английский
Процитировано
0Next Materials, Год журнала: 2025, Номер 8, С. 100654 - 100654
Опубликована: Апрель 18, 2025
Язык: Английский
Процитировано
0ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Апрель 23, 2025
Ramie fiber yarn (PRF), characterized by its superior microwave transmittance (MWT), is a novel material that can effectively substitute traditional glass (D-GF) in the fabrication of composites for communication equipment shells. However, super hydrophilicity and inadequate thermal conductivity (λ) PRF hinder overall performance safety use. To date, no effective strategy has been developed to prepare multifunctional PRF-reinforced composites, including high hydrophobicity, MWT, λ. Herein, integrating template method with vacuum-assisted spraying technology, mosquito-eye-like honeycomb network was constructed on surface fabric. This network, composed nacre-like brick-and-mortar microstructures as fundamental units, achieves both mesoscopic microscopic order. The biomimetic microstructure enable fabric transition from superhydrophilic high-hydrophobic, significantly reducing water absorption levels similar D-GF-reinforced composites. Furthermore, structures are incorporated into composite interface via surface, resulting MWT λ values up 98% 1.0582 W/mK, respectively. Importantly, waste be fully transformed particles, thereby enabling closed-loop recycling reuse. offer an efficient versatile modification
Язык: Английский
Процитировано
0ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(18), С. 26920 - 26930
Опубликована: Апрель 28, 2025
Wurtzite-structured ScAlN is a recently discovered ferroelectric material, and unique functionalities can emerge at the heterointerface between two-dimensional (2D) semiconductors, territory that has yet to be fully explored. In this work, we report controlled fabrication of inch-scale thin films with high properties via reactive co-sputtering as well nonvolatile control photoluminescence (PL) emission electronic responses in 2D MoS2 by interfacing ScAlN. The results show as-grown are uniform wafer scale (≥2 in.) possess an ultrasmooth surface (≤1.7 Å), ultralow coercive field (≤0.04 V/nm), out-of-plane polar axis. By monolayer ScAlN, realize modulation PL intensity position MoS2, which attributed ScAlN's polarization-induced exciton-to-trion conversion, evidenced pizoresponse force microscopy mapping analyses. Moreover, fabricate high-performance ScAlN/2D field-effect transistors, exhibit current switching ratio (≥4.3 × 106) subthreshold swing (≤4.17 mV dec-1), exceeding most previously reported ScAlN/semiconductor devices. This study not only offers cost-effective route high-quality but also promotes development advanced optoelectronic devices based on III-nitride ferroelectric/2D heterostructures.
Язык: Английский
Процитировано
0Advances in Colloid and Interface Science, Год журнала: 2025, Номер 342, С. 103537 - 103537
Опубликована: Май 2, 2025
Язык: Английский
Процитировано
0Materials Today Communications, Год журнала: 2025, Номер unknown, С. 112794 - 112794
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0Journal of Applied Polymer Science, Год журнала: 2025, Номер unknown
Опубликована: Май 11, 2025
ABSTRACT The water bath stretching process offers an effective approach to tune microcrystals and orientation parameters of carbon fibers, thereby enhancing their performance. However, a comprehensive understanding the evolution mechanism aggregated structures during governing radial heterogeneity in PAN fibers remains poorly understood. Herein, we use nascent that have undergone solvent removal stretch at varying temperatures quantitatively analyze structures. results reveal into structural stems from stress gradient distribution stretching. This is accompanied by gradual formation more ordered stacking molecular chain skin region compared core region. becomes pronounced with elevated temperature. Importantly, adjusting alignment, optimal precursor exhibit significantly enhanced mechanical performance when stretched 75°C. study could provide valuable insights for regulation polyacrylonitrile‐based
Язык: Английский
Процитировано
0Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163753 - 163753
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 164290 - 164290
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
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