A5101897788- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Dam Engineering and Safety
- Solid-state spectroscopy and crystallography
- Advanced Decision-Making Techniques
- Quantum Mechanics and Applications
- 2D Materials and Applications
- Ferroelectric and Piezoelectric Materials
- Advanced Photocatalysis Techniques
- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Crystal Structures and Properties
- Geotechnical Engineering and Analysis
- Polyoxometalates: Synthesis and Applications
- Hydrocarbon exploration and reservoir analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Geochemistry and Geologic Mapping
- Geotechnical Engineering and Underground Structures
- Advanced Sensor and Control Systems
- Gas Sensing Nanomaterials and Sensors
- Cryptography and Data Security
- Landslides and related hazards
- Luminescence and Fluorescent Materials
- Multiferroics and related materials
Southeast University
2022-2025
Beijing Institute of Technology
2022-2025
Yantai University
2025
Minjiang University
2024
Nanjing Hydraulic Research Institute
2005-2023
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering
2011-2023
Soochow University
2019-2022
State Key Laboratory of Applied Organic Chemistry
2019-2020
Lanzhou University
2019-2020
Tongji University
2019-2020
Direct detection of circularly polarized light (CPL) is a challenging task due to limited materials and ambiguous structure-property relationships that lead low distinguishability the helicities. Perovskite ferroelectric semiconductors incorporating chirality provide new opportunities in dealing with this issue. Herein, pair 2D chiral perovskite ferroelectrics reported, which have enhanced CPL performance interplays among lattice, photon, charge, spin, orbit. The chirality-transfer-induced...
Metal halide perovskites (MHPs) have garnered significant attention due to their distinctive optical and electronic properties, coupled with excellent processability. However, the thermal characteristics of these materials are often overlooked, which can be harnessed cater diverse application scenarios. We showcase efficacy lowering congruent melting temperature (Tm) layered 2D MHPs by employing a strategy that involves modification flexible alkylammonium through N-methylation...
The integration of spin crossover (SCO) magnetic switching and electric polarization properties can engender intriguing correlated phenomena. However, achieving substantial SCO-induced change through rational molecular design remains a formidable challenge. Herein, we present polar Fe(II) compound that exhibits in response to thermally regulated low-spin ↔ high-spin transition. This large is realized by harnessing an unusual SCO-actuated displacement the ion, encapsulated within cage-like...
Green, self-powered, flexible, and tunable features have been greatly desired to satisfy the increasing demands for next-generation photodetectors sensors. Here, we report a 1D lead-free perovskite ferroelectric HDA-BiI5 (HDA = hexane-1,6-diammonium) based photodetector showing spectrally selective linear polarized light response due unique dichroic conversion behavior. The single crystal device shows an orthogonal reverse of polarization-sensitive photocurrent can distinguish linearly in...
Abstract Pyroelectric materials hold significant potential for energy harvesting, sensing, and imaging applications. However, achieving high‐performance pyroelectricity across a wide temperature range near room remains challenge. Herein, we demonstrate single crystal of Fe(II) spin‐crossover compound shows remarkable pyroelectric properties accompanied by thermally controlled spin transition. In this material, the uniaxial alignment polar molecules results in polarization lattice. As...
Abstract Tuning phase transition temperature is one of the central issues in materials. Herein, we report a case study using enantiomer fraction engineering as promising strategy to tune Curie ( T C ) and related properties ferroelectrics. A series metal-halide perovskite ferroelectrics S −3AMP) x R 1−x PbBr 4 was synthesized where 3AMP 3-(aminomethyl)piperidine divalent cation varies between 0 1 (0 = enantiomers; 0.5 racemate). With change fraction, , second-harmonic generation intensity,...
Martensitic transformation, usually accompanied by ferroelastic and thermoelastic behaviors, is an interesting useful mechanical-related property upon external stimuli. For molecular crystals, however, martensitic systems to show reversible stimuli-actuation behaviors are still limited because of a lack designability frequent crystal collapse due large stress releases during the transformations. Here, one-dimensional hybrid perovskite semiconductor (NMEA)PbI3 (NMEA = N-methylethylammonium)...
Actuating materials convert different forms of energy into mechanical responses. To satisfy various application scenarios, they are desired to have rich categories, novel functionalities, clear structure-property relationships, fast responses, and, in particular, giant and reversible shape changes. Herein, we report a phase transition-driven ferroelectric crystal, (
Abstract Multiferroics refer to materials with two or more ferroic orders in one phase within a specific temperature range, including ferroelectricity, ferroelasticity, and ferromagnetism which have been widely used sensors, actuators, memory devices. Among them, hybrid perovskites exhibiting multiferroicity are generally limited low dimensions (0D–2D). Designing 3D lead‐free perovskite multiferroics remains challenge due Goldschmidt's tolerance factor limitation. Here, multiferroic ( R...
The first polar 2D lead-free hybrid perovskite (4BrPEA) 3 BiI 6 was synthesized by reducing the occupancy rate of Bi 3+ ions, and self-powered polarization-sensitive photodetector achieved a large photocurrent anisotropy factor 2.16.
Attribute based signature (ABS) is a novel cryptographic primitive, which permits users to sign message over attributes without revealing other information. A only reveals that it signed by signer whose some meet an access policy. However, ABS schemes support the threshold policy, where signing algorithms are limited threshold. The policy can not express precise control well. In addition, computation cost of verification algorithm heavy since pairing operations required. Pairing costly...
Abstract Circularly polarized luminescence (CPL) with polychromatic colors has been widely studied due to its great applications in chiroptical, optoelectronics, and spintronics. However, the realization of white CPL single‐component solid‐state materials remains a challenge suffers from incompatibility between high efficient large asymmetric discrimination. Here, by exploiting self‐trapped exciton mechanism chirality induction strategy, pair 1D chiral perovskites, ( RR / SS ‐DMPZ)PbBr 4...
Chiral three-dimensional lead iodide hybrids were constructed by introduction of chiral cations. The compounds exhibit BPVE, chiroptical properties, and Rashba–Dresselhaus effect, offering prospects for chiroptic spintronic applications.
Abstract Crystalline metal halide perovskites (MHPs) have ushered in remarkable advancements across diverse fields, including materials, electronics, and photonics. While the advantages of crystallinity are well‐established, ability to transition a glassy state with unique properties presents unprecedented opportunities expand structure‐property relationship broaden application scope for 2D MHPs. Up until now, exploration amorphous analogs MHPs is confined high‐pressure conditions, limiting...
Devices of Internet Things (IoT) play a significant role in people's daily life. A large scale data is generated, collected, and analyzed these devices, which inevitably faces secure authentication access control problem. Attribute-based signature (ABS), where signer signs message over set attributes, plays an elegant tool for privacy-preserving authentication. In multiauthority ABS scheme, multiple authorities distribute users' private keys their different attributes attribute are managed...
A two-dimensional (2D) organic-inorganic hybrid perovskite (OIHP) material with out-of-plane ferroelectricity is the key to miniaturization of vertical-sandwich-type ferroelectric optoelectronic devices. However, 2D OIHP ferroelectrics polarization are still scarce, and effective design strategies lacking. Herein, we report a novel Dion-Jacobson semiconductor synthesized by rigid-to-flexible cationic tailoring strategy, achieving an 1.7 μC/cm2 high photoresponse. Integrating excellent...
A unique cationic assembly via strong H-bonding interacts intensely with perovskite inorganic sheets to bring about huge in-plane structural anisotropy that leads high photocurrent responses.
Hybrid lead halide perovskites have been intensively investigated due to their structural diversity and outstanding optoelectronic properties. As emerging semiconducting materials, bandgaps play a key role in regulating the performance. Qualitative correlations between bandgap structure uncovered; however, quantified relationships not yet established. Herein, we report series of hydrogen-bonded quasi-Dion–Jacobson (DJ) perovskite semiconductors, [(HOOCnH2n–2NH3)2]PbBr4 (n = 3–8), as model...
Materials emitting circularly polarized luminescence (CPL) have been intensively studied for their promising applications in various fields. However, developing tunable and responsive CPL materials a wide wavelength range remains great challenge. Here, pair of chiral (R,R/S,S-DCDA)3Sb2Cl12 (DCDA = dimethyl-1,2-cyclohexanediamine divalent cation) shows efficient broadband yellow emission with photoluminescence (PL) quantum yield 27.6% asymmetry factor 3 × 10-3. The associated chiroptical...
Phase-change materials (PCMs) have spurred intensive studies for information storage owing to huge and drastic changes in physical properties (i.e., optical resistivity) during the phase transitions between crystalline-amorphous crystalline-melting-glassy states. However, limited switching greatly hinder their development applications. Herein, we report a pair of hybrid metal halides (R/S-2-HMM)3SbCl6 (2-HMM = 2-(hydroxymethyl)morpholine cation) as model compounds new class photoluminescent...