Wei Cao

Extraordinary n ‐type Tellurium‐Free Thermoelectric Performance of Y‐Doped BiSe via Synergistic Effect of Vacancies and Band Engineering

Wenhao Xie, Fang Lyu, Xiaolong Sun, Can Li et autres

ABSTRACT Bismuth selenide (BiSe) is an n ‐type thermoelectrics with promising room‐temperature potential as a tellurium‐free alternative to Bi 2 Te 3 ‐based materials. It features ultralow lattice thermal conductivity ( κ lat ), but suffers from excessively high carrier concentration, yielding …

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Thermoelectric properties of high-throughput gradient composition films of BixSb2-xTey

Xiang Yu, Wei Cao, Yong Liu, Jiahong Cheng et autres

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Theoretical Investigation of Grain-Boundary Engineering for Thermal Transport Control in Janus 2D Transition Metal Dichalcogenides: Implications for Nanoscale Thermal Management

Wenkai Liao, Wei Cao, Ziyu Wang, Ling Miao et autres

The influence of mirror-twin grain boundaries (GBs) on phonon transport in Janus two-dimensional transition-metal dichalcogenides is investigated using neuroevolution-potential (NEP)-based nonequilibrium molecular dynamics (NEMD) simulations. The primary comparison is made among P 3 m 1-type Janus PtSSe and ZrSSe, authentic P 3 …

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Sustainable clinical translation: development of implantable energy systems

Wei Cao, Xingyu Wang, Yafei Feng, Wei Te Lei

Advances in the Internet of Things and artificial intelligence have accelerated the clinical adoption of implantable electronic medical devices, expanding their applications in brain-computer interfaces, chronic disease management, and post-operative rehabilitation. However, the growing disparity between finite global energy resources and escalating …

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Accelerating the discovery of materials with expected thermal conductivity via a synergistic strategy of DFT and interpretable deep learning

Wei Cao, Yijing Zuo, Tan Peng, Yue Hou et autres

Abstract Lattice thermal conductivity (LTC) is a critical parameter for thermal transport properties, playing a pivotal role in advancing thermoelectric materials and thermal management technologies. Traditional computational methods, such as density functional theory (DFT) and molecular dynamics (MD), are resource-intensive, limiting their …

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Electropolymerization of Tetraaminophenazine Tetraone as the Electrode Material for Aqueous Zinc-Ion Batteries

Chao Wang, Yuxuan Bai, Wei Cao, Dan Wang

Conducting polymers are promising candidates as charge storage materials for aqueous zinc-ion batteries (ZIBs). Herein, 2,3,7,8-tetraaminophenazine-1,4,6,9-tetraone (TAPT) is prepared and is electropolymerized from aqueous solution by using the galvanostatic method to form poly(TAPT) on carbon cloth substrate (PTAPT/CC). PTAPT is crystalline and …

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Symmetry-driven phonon anharmonicity and anomalous pressure-dependent thermal transport in Cu/Ag-based halides

Fang Lyu, Wei Cao, Han-Pu Liang, Xiaolu Zhu et autres

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Bidirectional Spiral-Inspired Kirigami Mechanical Metamaterial for Stretchable Electronics

Sijia Yan, Yue Hou, Zheng Zhu, Chang Li et autres

The rapid advancement of flexible electronics and wearable sensors has heightened demands for stretchable structures that excel in conformability, dynamic motion adaptability, stability under cyclic stretches, and antidistortion properties, holding significant commercial value. Traditional stretchable designs have often compromised the fill factor …

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Performance Study of Wearable Thermoelectric Cooler with Phase-Change Composite Heat Sink

Zhanglong Xia, Wei Cao, Xiaolong Sun, Qianfeng Ding et autres

Based on existing studies, we identified that the heat sinks used in wearable thermoelectric coolers (WTECs) are predominantly bulky, which limits their practicality and comfort. To address this issue, we propose the use of phase-change composite materials (PCCMs) due to their inherent …

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Enhancing pyroelectric detection performance of Na 0.5 Bi 0.5 TiO 3 ‐based lead‐free ceramics via thermoelectric effect

Liangwei Hu, Wei Cao, Jun-Feng Jin, Xiaolong Sun et autres

Abstract Pyroelectric sensors based on pyroelectric effect have a wide range of applications. However, the use of lead‐containing materials limits their development. In this paper, Na 0.5 Bi 0.5 TiO 3 ‐Na 0.5 Bi 4.5 TiO 15 ‐Mn lead‐free pyroelectric ceramics are …

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Ultra-Wideband Passive Polarization Conversion Metasurface for Radar Cross-Section Reduction Across C-, X-, Ku-, and K-Bands

Xiaole Ren, Yunqing Liu, Zhonghang Ji, Qiong Zhang et autres

In this study, we present a novel ultra-wideband passive polarization conversion metasurface (PCM) that integrates double V-shaped patterns with circular split-ring resonators. Operating without any external power supply or active components, this design effectively manipulates the polarization state of incident electromagnetic waves. …

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Higher-order topological Anderson amorphous insulator

Tan Peng, Yong‐Chen Xiong, Xiaolu Zhu, Wei Cao et autres

Recently, the Anderson disorder-induced topological Anderson amorphous insulator has been proposed in a two-dimensional amorphous lattice. However, the interplay between Anderson disorder and amorphous higher-order band topology remains unclear. In this work, we investigate the effects of Anderson disorder on the higher-order …

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