A5100342394- 2D Materials and Applications
- Perovskite Materials and Applications
- Photonic and Optical Devices
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Chalcogenide Semiconductor Thin Films
- Advanced Semiconductor Detectors and Materials
- Quantum Dots Synthesis And Properties
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- Advanced optical system design
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Ga2O3 and related materials
- Semiconductor Quantum Structures and Devices
- Advanced Fiber Laser Technologies
- Nanowire Synthesis and Applications
- Advanced Optical Sensing Technologies
- Advanced Battery Materials and Technologies
- Semiconductor Lasers and Optical Devices
- ZnO doping and properties
- Advanced Memory and Neural Computing
- Spectroscopy and Laser Applications
- Silicon Nanostructures and Photoluminescence
Shanghai Institute of Technical Physics
2020-2025
Chinese Academy of Sciences
2010-2025
University of Chinese Academy of Sciences
2010-2025
Beijing National Laboratory for Molecular Sciences
2022-2025
Institute of Chemistry
2022-2025
Institute of Applied Ecology
2024
Peking University
2016-2024
Anhui Institute of Optics and Fine Mechanics
2024
Advanced Laser Technology (United Kingdom)
2024
University of Science and Technology of China
2016-2024
With the increasing demand for multispectral information acquisition, infrared imaging technology that is inexpensive and can be miniaturized integrated into other devices has received extensive attention. However, widespread usage of such photodetectors still limited by high cost epitaxial semiconductors complex cryogenic cooling systems. Here, we demonstrate a noncooled two-color photodetector provide temporal-spatial coexisting spectral blackbody detection at both near-infrared...
Abstract Lithium-manganese-oxides have been exploited as promising cathode materials for many years due to their environmental friendliness, resource abundance and low biotoxicity. Nevertheless, inevitable problems, such Jahn-Teller distortion, manganese dissolution phase transition, still frustrate researchers; thus, progress in full manganese-based (FMCMs) has relatively slow limited recent decades. Recently, with the fast growth of vehicle electrification large-scale energy-storage grids,...
Abstract Li‐rich NMCs layered oxides, with the general formula of Li[Li x Ni y Mn z Co 1− − ]O 2 , are known for their exceptionally high capacities but remain yet to be practicalized in real world. They have attracted enormous research attention due complex structure and intriguing redox mechanisms, a particular focus on anionic over past decade. While fundamental understandings fruitful, practical considerations emphasized here by providing perspectives how limited roadblocks guidelines...
Abstract Metal halide perovskite solar cells (PSCs) have emerged as one of the most promising candidates for next‐generation photovoltaic technologies. However, films deposited by blade‐coating usually exhibit inferior film morphology compared to those fabricated spin‐coating, which hinders power conversion efficiency (PCE) and stability scalable modules (PSMs). Herein, ellipsoidal colloids are tailored in precursor solution incorporating polymer additives. Compared unregulated spherical...
An electrodeposited 3D ordered macroporous V<sub>2</sub>O<sub>5</sub> film contains nanocrystallites and amorphous parts, exhibits improved electrochromic performance lithium diffusion coefficient.
The group IV-VI compound tin selenide (SnSe) has recently attracted particular interest due to its unexpectedly low thermal conductivity and high power factor shows great promise for thermoelectric applications. With an orthorhombic lattice structure, SnSe displays intriguing anisotropic properties the symmetry of puckered in-plane structure. When materials, such as SnSe, have decreased dimensionality, their conversion efficiency may be improved increased conductivity. Therefore, it is...
Tungsten ditelluride (WTe2) is a semi-metallic layered transition metal dichalcogenide with stable distorted 1T phase. The reduced symmetry of this system leads to in-plane anisotropy in various materials properties. We have systemically studied the Raman modes few-layer and bulk WTe2 by angle-dependent polarized spectroscopy (ADPRS). Ten are clearly resolved. Their intensities show periodic variation sample rotating. identify symmetries detected quantitatively analyzing ADPRS results based...
Uncooled infrared photodetectors have evoked widespread interest in basic research and military manufacturing because of their low-cost, compact detection systems. However, existing uncooled utilize the photothermoelectric effect radiation operating at 8-12 µm, with a slow response time millisecond range. Hence, exploration new mid-wavelength (MWIR) heterostructures is conducive to development ultrafast high-performance nano-optoelectronics. This study explores van der Waals heterojunction...
Abstract Low‐symmetry 2D materials with unique anisotropic optical and optoelectronic characteristics have attracted a lot of interest in fundamental research manufacturing novel devices. Exploring new low‐symmetry narrow‐bandgap will be rewarding for the development nanoelectronics nano‐optoelectronics. Herein, sulfide niobium (NbS 3 ), transition metal trichalcogenide semiconductor structure, is introduced into narrowband material strong physical properties both experimentally...
Emerging low-dimensional materials exhibit the potential in realizing next-generation room-temperature blackbody-sensitive infrared detectors. As a narrow band gap semiconductor, tellurium (Te) has been focus of detector research attention because its high hole mobility, large absorptivity, and environmental stability. However, it is still challenge to fabricate Te-based detectors with low dark current fast speed. In this work, heterojunction device based on Te graphene constructed,...
Surface trap as intrinsic defects-mediated non-radiative charge recombination is a major obstacle to achieving the reliable fabrication of high-efficiency and large-area perovskite photovoltaics. Here CS2 vapor-assisted passivation strategy proposed for solar module, aiming passivate iodine vacancy uncoordinated Pb2+ caused by ion migration. Significantly, this method can avoid disadvantages inhomogeneity film spin-coating-assisted reconstruction surface from solvent. The vapor passivated...
The unprecedented development of perovskite solar cells (PSCs) makes them one the most promising candidates for terawatt-scale green energy production with low cost. However, high boiling point solvents during solution-processed film deposition cause anisotropic crystal growth and toxic solvent vapor high-throughput manufacturing. Here, a dual-component consisting isopropyl acetate acetonitrile is proposed to form volatile precursor, which can realize high-quality thin by intermediate phase...
Multiferroic tunnel junctions (MFTJs) have attracted considerable attention due to their multifunctional properties, which are valuable for nonvolatile memory devices. The recent advancements in van der Waals (vdW) multiferroic materials, combining ferromagnetic and ferroelectric provide an excellent platform exploring MFTJs at the atomic scale. In this study, we employ a combination of nonequilibrium Green's function density functional theory theoretically investigate spin-dependent...
Heat is almost everywhere. Unlike electricity, which can be easily manipulated, the current ability to control heat still highly limited owing spontaneous thermal dissipation imposed by second law of thermodynamics. Optical illumination and pressure have been used switch endothermic/exothermic responses materials via phase transitions; however, these strategies are less cost-effective unscalable. Here, we spectroscopically demonstrate glassy crystal state 2-amino-2-methyl-1,3-propanediol...
Broadband photodetection including midwave infrared (MWIR) is crucial in space science and technology. Topological insulators Bi2Se3 have exhibited excellent performance infrared. However, the large dark current caused by topological surface states impedes further capability enhancement. Here, we designed integrated Bi2Se3/BP van der Waals p-n heterojunction to suppress current. The built-in electric field clean, sharp interface at heterojunctions drive photoresponse of photodetector from...
Abstract Silicon (Si)‐based photodetectors are cost‐effective, eco‐friendly, and compatible with on‐chip complementary metal‐oxide‐semiconductor (CMOS) technology. However, expanding their photoresponse into the short‐wavelength‐infrared region beyond 1.1 µm remains challenging because of intrinsic bandgap Si. In this study, an ion implantation sulfur‐doped Si‐based infrared photodetector featuring a blocked impurity band (BIB) structure is investigated. The detector achieves extended...
Abstract Organic–inorganic halide perovskite solar cells (PSCs) have attracted significant attention in photovoltaic research, owing to their superior optoelectronic properties and cost‐effective manufacturing techniques. However, the unbalanced charge carrier diffusion length materials leads recombination of photogenerated electrons holes. The inefficient collecting process severely affects power conversion efficiency (PCE) PSCs. Herein, a solution‐processed SnO 2 array electron transport...
We experimentally demonstrate the direct-to-indirect bandgap transition of monolayer MoS 2 under hydrostatic pressure.
Polarization-sensitive photodetection is central to optics applications and has been successfully demonstrated in photodetectors of two-dimensional (2D) materials, such as layered hybrid perovskites; however, achieving high polarization sensitivity a photodetector remains extremely challenging. Here, for the first time, we demonstrate high-performance polarization-sensitive using single-crystalline 2D/3D perovskite heterostructure, namely, (4-AMP)(MA)2Pb3Br10/MAPbBr3 (MA = methylammonium;...
In recent years, metal biomaterials have emerged one after another, and many excellent properties, playing a great role in medicine. However, these coatings cannot meet the medical needs every aspect. Schiff base is an important organic synthetic reagent liquid crystal material chemistry. It mainly refers to class of compounds containing imine or azomethine characteristic groups (-RC=N-). has anti-tumor, anti-virus, antifungal antibacterial activities. Based on properties base, made can...
Two-dimensional (2D) material-based photodetectors, especially those working in the infrared band, have shown great application potential thermal imaging, optical communication, and medicine fields. Designing 2D material photodetectors with broadened detection band enhanced responsivity has become an attractive but challenging research direction. To solve this issue, we report a zirconium trisulfide (ZrS3) photodetector response assistance of synergistic effects extrinsic photoconduction...