A5100362637- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- 2D Materials and Applications
- Optical properties and cooling technologies in crystalline materials
- Solid-state spectroscopy and crystallography
- Irrigation Practices and Water Management
- Photonic and Optical Devices
- Optical Network Technologies
- Soil and Unsaturated Flow
- Soil Moisture and Remote Sensing
- Advanced Photocatalysis Techniques
- Silicon and Solar Cell Technologies
- Machine Learning in Materials Science
- Optimal Power Flow Distribution
- Semiconductor materials and interfaces
- Power System Reliability and Maintenance
- Organic Light-Emitting Diodes Research
- Semiconductor Quantum Structures and Devices
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Organic Electronics and Photovoltaics
- Microwave Dielectric Ceramics Synthesis
- Soil erosion and sediment transport
University of Electronic Science and Technology of China
2023-2025
Zhejiang University
2023-2025
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
2025
Shihezi University
2018-2025
Xinjiang Production and Construction Corps
2025
Shanghai University of Electric Power
2022-2024
Fiberhome Technology Group (China)
2023-2024
Brown University
2018-2024
Soochow University
2024
Wuhan University of Technology
2024
Lead-free double perovskite nanocrystals (NCs) have emerged as a new category of materials that hold the potential for overcoming instability and toxicity issues lead-based counterparts. Doping chemistry represents unique avenue toward tuning optimizing intrinsic optical electronic properties semiconductor materials. In this study, we report first example doping Yb3+ ions into lead-free Cs2AgBiX6 (X = Cl-, Br-) NCs via hot injection method. The endows with newly near-infrared emission band...
Abstract Doping metal ions into lead halide perovskite nanocrystals (NCs) has attracted great attention over the past few years due to emergence of novel properties relevant optoelectronic applications. Here, synthesis Mn 2+ /Yb 3+ codoped CsPbCl 3 NCs through a hot‐injection technique is reported. The resulting show unique triple‐wavelength emission covering ultraviolet/blue, visible, and near‐infrared regions. By optimizing dopant concentrations, total photoluminescence quantum yield (PL...
Abstract Extensive research has focused on developing wide‐bandgap metal compound‐based passivating contacts as alternatives to conventional doped‐silicon‐layer‐based mitigate parasitic absorption losses in crystalline silicon (c‐Si) solar cells. Herein, thermally‐evaporated aluminum halides (AlX)‐based electron‐selective for c‐Si cells are investigated. A low contact resistivity of 60.5 and 38.4 mΩ cm 2 is obtained the AlCl x /n‐type (n‐Si) AlF /n‐Si heterocontacts, respectively, thanks...
Photoluminescence microscopy reveals subgrain special boundaries in FAPbI3 perosvkite thin films that restrict carrier diffusion and serve as nonradiative recombination sites. These boundaries, which cannot be observed by conventional AFM or SEM measurements of grain-boundary grooves, may explain why the performance perovskite solar cells has not scaled with apparent grain size.
Grain boundaries have been established to impact charge transport, recombination and thus the power conversion efficiency of metal halide perovskite thin film solar cells. As a special category grain boundaries, ferroelastic twin recently discovered exist in both CH3NH3PbI3 films single crystals. However, their on carrier transport perovskites remains unexplored. Here, using scanning photocurrent microscopy, we find that negligible influence across them. Photoluminescence (PL) imaging...
Abstract The presence of a high density defects at the perovskite/electron transport layer (ETL) interface results in significant nonradiative recombination losses, thus impeding efficiency enhancement perovskite/silicon tandem solar cells (TSCs). In this investigation, metallocene‐based molecule, cobalt (III) dichlorophene hexafluorophosphate (CcPF 6 ), is employed for perovskite surface passivation. To maximize its efficacy, molecule dissolved mixed solvent acetonitrile and chlorobenzene,...
Abstract Composition and film quality of perovskite are crucial for the further improvement solar cells (PSCs), including efficiency, reproducibility, stability. Here, it is demonstrated that by simply mixing 50% formamidinium (FA + ) into methylammonium lead iodide (MAPbI 3 ), a highly crystalline, stable phase, compact, polycrystalline grain morphology formed using solvent‐mediated phase transformation process via synergism dimethyl sulfoxide diethyl ether, which shows long carrier...
Abstract Waveguide tapers are seemingly indispensable elements in silicon photonics that usually operate adiabatically to maximize the coupling efficiency between waveguides with different cross‐sections, which, however, necessitate large footprints. To date, great efforts have been made minimize tapers’ footprints while maintaining their efficiency. Contrary conventional wisdom, here, a concept of taper‐free is proposed which cross‐sections couple each other efficiently without using...
Light-matter interactions in semiconductors are uniformly treated within the electric dipole approximation; multipolar considered "forbidden." We experimentally demonstrate that this approximation inadequately describes light emission two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs), solution processable with promising optoelectronic properties. By exploiting highly oriented crystal structure, we use energy-momentum spectroscopies to an exciton-like sideband 2D HOIPs...
Information design (ID) explores how a sender influence the optimal behavior of receivers to achieve specific objectives. While ID originates from everyday human communication, existing game-theoretic and machine learning methods often model information structures as numbers, which limits many applications toy games. This work leverages LLMs proposes verbalized framework in Bayesian persuasion (BP), extends classic BP real-world games involving dialogues for first time. Specifically, we map...
The management of chronic diabetic wounds is a complex challenge requiring local glycemic regulation, modulation inflammation levels, and prevention bacterial infections. Therefore, multifunctional wound dressing with antioxidant, glycocontrol, antibacterial properties developed to promote healing. This constructed by co-loading gold-cerium oxide (AuCeO2) dumbbells glucose oxidase (GOx) into reactive oxygen species (ROS)-sensitive hydrogel matrix (ACG gels). In this system, Au-CeO2...
The cotton-growing region in Southern Xinjiang is plagued by perennial drought and water scarcity, there a lack of research on the irrigation mechanism for “one film, three tubes, four rows” new model dry sowing wet emergence cotton. Therefore, this experiment explores optimal regime cotton under planting Xinjiang, where two-year field plot was conducted. Three levels (W1: 360 mm, W2: 450 W3: 540 mm) were set, with replications each, to study effects different amounts growth, soil content...
A high-speed, wide-field photoluminescence (PL) imaging method is established for measuring carrier diffusion in formamidinium lead triiodide (FAPbI3) perovskite thin films. This allows transient PL with a diffraction limited spatial resolution (∼300 nm) and subnanosecond (500 ps) temporal to directly observe reliably estimate diffusivity. Combining this background continuous-wave (CW) illumination, diffusivity found increase the density. effect discussed within context of trap–carrier...
In this paper, a high-fineness fiber-optic Fabry-Perot high-temperature pressure sensor, based on MEMS technology, is proposed and experimentally verified. The Faber-Perot cavity of the sensor formed by anodic bonding sensitive silicon diaphragm Pyrex glass; interference signal obtained coating interface surface with high-reflection film, so as to simplify demodulation system. experimental results show that sensitivity 55.468 nm/MPa, temperature coefficient 0.01859 nm/°C at 25~300 °C. has...
Abstract Crystalline silicon ( c ‐Si) solar cells require passivating contacts to unlock their full efficiency potential. For this doped layers are the materials of choice, as they yield device voltages close thermodynamic limit. Yet, replacing such with wide‐bandgap metal oxides may be advantageous from a cost perspective and minimize parasitic optical absorption. Here aluminum‐doped zinc oxide (AZO)‐based high electron selectivity presented. The SiO 2 /AZO/Al O 3 stack is demonstrated...