A5091306910- 2D Materials and Applications
- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- MXene and MAX Phase Materials
- Chalcogenide Semiconductor Thin Films
- Photonic and Optical Devices
- Plasmonic and Surface Plasmon Research
- Nanowire Synthesis and Applications
- Metamaterials and Metasurfaces Applications
- Graphene research and applications
- Advanced Photocatalysis Techniques
- Spectroscopy and Laser Applications
- Ga2O3 and related materials
- Solid State Laser Technologies
- Crystal Structures and Properties
- Advanced Antenna and Metasurface Technologies
- Photorefractive and Nonlinear Optics
- Superconducting and THz Device Technology
- Crystal structures of chemical compounds
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Diamond and Carbon-based Materials Research
- Terahertz technology and applications
- Bacteriophages and microbial interactions
- Orbital Angular Momentum in Optics
Wuhan University
2017-2024
Jinzhong University
2024
Shenzhen University
2021-2023
Zhejiang Lab
2022-2023
State Key Laboratory of Crystal Materials
2017-2021
Shandong University
2017-2021
Zhejiang Gongshang University
2019
CTS Corporation (United States)
2018
Intriguing anisotropic electrical and optoelectrical properties in two-dimensional (2D) materials are currently gaining increasing interest both for fundamental research emerging optoelectronic devices. Identifying promising new 2D with low-symmetry structures will be rewarding the development of polarization-integrated nanodevices. In this work, electron transport multilayer ternary Ta2NiSe5 were systematically researched. The polarization-sensitive photodetector shows a linearly anisotropy...
Abstract Photodetectors play an important role in optical communication systems and are essential to achieve high‐fidelity signal transmission. The emerging formamidinium‐based quasi‐2D layered perovskites have attracted attention the field due their excellent photoelectric performance moisture stability. By optimizing film quality device engineering a high‐performance flexible photodetector based on ((BA) 2 FAPb I 7 ) is developed, which shows fast response air‐stability. introducing...
Abstract Germanium phosphide (GeP), a typical 2D group IV–V semiconductor, has attracted significant attention due to the advantages of higher thermodynamic stability than black phosphorus (BP), widely tunable bandgap, high carrier mobility, and in‐plane anisotropy. However, its photonic optoelectronic properties have not been extensively explored so far. Herein, large size high‐quality GeP single bulk crystal is successfully grown by flux method stripped into nanosheets with liquid phase...
Abstract Terahertz (THz) technology has attracted great attention in the past few decades for its unique applications various fields, including spectroscopy, noninvasive detection, wireless communications, and imaging. In parallel to this, practical, fast, broadband modulation of THz waves is becoming indispensable. Two‐dimensional (2D) materials exhibit unusual optical electrical properties, which prompted tremendous interest significant advances modulation. This review provides recent...
Abstract 2D materials and their van der Waals heterostructures are of great fundamental interest have potential applications in emerging electronics devices. However, atomically thin photodetector suffered from performance limitations because low optical absorption. Here, a near‐infrared based on methylammonium lead halide perovskite quantum dots (MQDs), combined with Ta 2 NiSe 5 heterostructures, is fabricated to take advantage energy band alignment. An ultrasensitive photoresponse...
Mid-infrared (MIR) nonlinear optical (NLO) crystals are crucial in generating MIR lasers, which important civilian and military applications. Compared to the extensively investigated ternary quaternary chalcogenide NLO crystals, phosphide have a large nonlinearity coefficient wide transparency range. For instance, well-known chalcopyrite crystal, ZnGeP2, possesses (deff = 75 pm/V) broad transmittance range of 0.75–12 μm. However, its applications far-infrared laser were hindered by strong...
Seeded flux growth of bulk o-SiP single crystals with layered structure and in-plane anisotropic photoresponse.
Molybdenum disulfide (MoS2) is one of the two-dimensional layered semiconductor transition metal dichalcogenides (TMDCs) with great potential in electronics, optoelectronics, and spintronic devices. Sulfur vacancies MoS2 are most prevalent defects. However, effect sulfur on electronic structure still dispute. Here we experimentally theoretically investigated MoS2. The were intentionally introduced by thermal annealing crystals a vacuum environment. Angle-resolved photoemission spectroscopy...
Abstract Despite the impressive progresses in terahertz (THz) sources and detection, there is still a big challenge for high performance active optoelectronic THz devices such as modulators. All‐optically controlled modulators with large modulation depth (MD) wide bandwidth are of great importance technology. Herein, MoTe 2 /Si van der Waals (vdWs) heterostructure rationally designed all‐optical modulator by taking advantage their similar band alignment easy integration Si complementary...
Low-cost preparation of high-efficiency electrocatalysts is challenging the development electrocatalytic water splitting. Here, amorphous nickel/nickel sulfide composite films with controlled Ni content are prepared directly on nickel foam by adopting reductant during a facile electrodeposition route, functioning as active hydrogen evolution electrocatalysts. By process, increases in as-prepared film, deducing from an energy-dispersive spectrometer. As result increased to optimal ratio, film...
Due to its improved physical and chemical performances, a strongly hydrogenated TiO2 was designed produced successfully by using sealing-transfer reduction method at relatively low temperature (425 °C). The microstructures, electromagnetic microwave absorbing properties were investigated in detail. Experimental results revealed that: (1) the minimum reflection loss (RL) value of up −53.8 dB (99.999 99% EM wave attenuation) reached 11.2 GHz, RL values below −20 (99%) obtained frequency range...
Abstract Contact engineering, especially at the interface between metal and 2D semiconductors, to enable high‐performance devices remains a formidable challenge due inevitable chemical disorder Fermi‐level pinning interface. Here, authors report InSe–Se vertical van der Waals (vdW) heterostructures achieve high field‐effect mobility electrical stability in 30 nm InSe transistor (FET), which has low lattice mismatch of 1.1% form 2D/2D low‐resistance contacts, creating an contact that...
Abstract Atomic layers of group‐VI 2D transition metal dichalcogenides (TMDCs) with substantial materials system and unique physicochemical properties have exhibited excellent performances in electronics optoelectronics. However, photodetectors based on TMDCs suffer from poor sensitivity optical absorption due to the weak phonon conversion efficiency their atomically thin feature. Here, taking advantages miniaturization integrability, all‐dielectric TiO 2 metalenses are designed Fresnel...
Mid-infrared (MIR) nonlinear optical crystals of LiInSe2 (LISe) were grown by a modified Bridgman technique on (001)-seed. A 7-12 μm widely tunable picosecond (ps) MIR parametric amplifier (OPA) based LISe crystal was demonstrated for the first time, to best our knowledge. The OPA pumped 30 ps 1064 nm Nd:YAG laser and injected KTiOPO4 (KTP)-based near-infrared seed. idler operating at 7.5 with highest pulse energy 170 μJ obtained under pump 14 mJ. corresponding conversion efficiency is...
Quasi-two-dimensional (2D) layered organic-inorganic hybrid perovskites have attracted extensive attention, owing to their excellent optoelectronic tunability and moisture stability compared with three-dimensional perovskite counterparts show great potential for application in photodetectors (PDs). However, the unavoidable grain boundary defects of polycrystalline films, photocurrent is limited by poor light absorption charge mobility. Therefore, preparation quasi-2D films strong trapping...
Combining the advantages of GQDs and InSe, GQD/InSe 0D–2D MvdWH-based photodetectors with a responsivity 27.48 A W −1 detectivity 1.2 × 10 12 Jones are proposed.
Optimized oriented seed growth and optical properties of high-quality LISe, which is significant for the exploration other MIR crystals.
An ultrasensitive photodetector based on high-quality LiInSe<sub>2</sub> (LISe) was systemically investigated. The device exhibited a high on/off current ratio, detectivity, fast response speed, and stability. This work may lay the foundation ignite future research interest LISe in photodetection.
Abstract C 20 H 17 ClN 2 O 3 , triclinic, P <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <m:mrow> <m:mover accent="true"> <m:mn>1</m:mn> <m:mo>‾</m:mo> </m:mover> </m:mrow> </m:math> $\overline{1}$ (no. 2), a = 6.2486(3) Å, b 7.4746(4) c 19.0245(10) α 89.341(2)°, β 85.998(2)°, γ 83.651(2)°, V 880.94(8) Å Z 2, R gt ( F ) 0.0351, wR ref 0.0970, T 289 K.
RNA pseudoknots are molecules with specialized three-dimensional structures that play important roles in various biological processes. To understand the functions and mechanisms of pseudoknots, it is essential to elucidate their folding pathways. The most fundamental step opening closing a base pair. effect flexible loops on pair remains unclear. In this work, we use molecular dynamics simulations Markov state model study configurations, thermodynamic kinetic single pseudoknots. We find...
In article number 2000238, Hong Liu, Lin Han, and co-workers present InSe-Se vertical van der Waals (vdW) heterostructures to address a formidable contact engineering challenge, which have low lattice mismatch of 1.1% form 2D/2D low-resistance vdW contacts, creating an InSe interface that substantially limits chemical disorder Fermi-level pinning.
High quality and large size nonlinear optical LiInS<sub>2</sub> (LIS) crystals were successfully grown by the optimized seeded Bridgman method.