A5092277216- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Thermal properties of materials
- Advanced Wireless Communication Techniques
- Wireless Communication Networks Research
- Heusler alloys: electronic and magnetic properties
- Internet of Things and AI
- Image Enhancement Techniques
- Machine Learning and ELM
- Error Correcting Code Techniques
- PAPR reduction in OFDM
- Wireless Signal Modulation Classification
- Infrared Target Detection Methodologies
- Neural Networks and Applications
- Advanced Image Fusion Techniques
- Boron and Carbon Nanomaterials Research
- Phase-change materials and chalcogenides
- Topological Materials and Phenomena
- Biometric Identification and Security
- Quantum Dots Synthesis And Properties
Zhengzhou University of Light Industry
2025
Beijing Institute of Technology
2023-2024
Wuhan University
2023-2024
As a liquid-like material, CuAgSe has high carrier mobility and ultralow lattice thermal conductivity. It undergoes an n-p conduction-type transition during β- to α-phase with increasing temperature. Moreover, optimization of the thermoelectric performance is rather difficult, owing two-carrier conduction in this material. In work, we reported free tuning type by manipulating cation vacancies. Positron annihilation measurements reveal that increase CuAg content can effectively suppress...
Abstract We report a comprehensive study on the thermal conductivity of two-dimensional (2D) B8Si4 using first-principles calculations and Peierls–Boltzmann transport equation. Thermal reveal significant anisotropy, with values 147.0 Wm⁻¹K⁻¹ along x direction 111.0 y at 300 K. These are comparable to silicon, highlighting efficient dissipation capabilities 2D B8Si4. The major contributions come from in-plane acoustic modes (LA TA), whereas contribution out-of-plane (ZA) is relatively minor...
The topological insulator MnSb2Te4 shows promising potential in thermoelectric applications due to its intrinsically low lattice thermal conductivity. However, performance is limited by the high carrier concentration, of which origin still unclear. In this work, concentration successfully tuned from 2.24 × 1021 cm-3 as 9.1 1019 cm-3. Transmission electron microscopy and positron annihilation measurements suggest that large amounts Mn vacancies exist septuple layer MnSb2Te4, are responsible...
Low thermal conductivity is crucial for obtaining a promising thermoelectric (TE) performance in semiconductors. In this work, the TE properties of Cu4TiS4 and Cu4TiSe4 were theoretically investigated by carrying out first-principles calculations solving Boltzmann transport equations. The calculated results reveal lower sound velocity compared to that Cu4TiS4, which due weaker chemical bonds crystal orbital Hamilton population (COHP) also larger atomic mass Cu4TiSe4. addition, strong lattice...
Non-orthogonal waveform has been identified as a promising spectrally efficient technology in the next generation wireless communications. In this correspondence, we develop computationally iterative receivers from unified variational inference perspective for non-orthogonal (uNOW) signaling over multipath channels. Building on constructed multi-layer factor graph, parametric message passing algorithms equalization are derived by invoking mean field (MF) and Bethe approximation. To improve...
Compared to orthogonal frequency division multiplexing (OFDM), spectrally efficient (SEFDM) provides higher spectrum efficiency, which has been regarded as a promising waveform for future wireless communications. Against this background, the design of SEFDM receiver is investigated in paper, considering its sampling synchronization (SFS), timing synchronization, phase recovery, and detector design. Specifically, two-step SFS module, consists coarse offset (SFO) compensation domain...
Autoencoder (AE) is widely used in image fusion. However, AE-based fusion methods usually use the same encoder to extract features of images from different sensors/modalities without considering differences between them. In addition, these cannot fuse real time. To solve problems, an end-to-end network proposed for fast infrared and visible We design W-shaped (W-Net), which consists two independent encoders, one shared decoder skip connections. The encoders representative sources...