A5003788252- Perovskite Materials and Applications
- Advancements in Battery Materials
- Solid-state spectroscopy and crystallography
- Advanced Battery Materials and Technologies
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Analytical Chemistry and Sensors
- 2D Materials and Applications
- Advanced Battery Technologies Research
- Adsorption and biosorption for pollutant removal
- Luminescence Properties of Advanced Materials
- Optical properties and cooling technologies in crystalline materials
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Advanced Photocatalysis Techniques
- Electronic and Structural Properties of Oxides
- Extraction and Separation Processes
- Methane Hydrates and Related Phenomena
- Multiferroics and related materials
- Solid State Laser Technologies
- Corrosion Behavior and Inhibition
- Nanomaterials for catalytic reactions
- Organic Electronics and Photovoltaics
- Advancements in Solid Oxide Fuel Cells
Shandong University of Science and Technology
2014-2025
Materials Science & Engineering
2025
State Key Laboratory of Crystal Materials
2012
Shandong University
2012
The photodetector (PD) is the key component to realize efficient optoelectronic conversion signal in visible light communication (VLC) system. response speed directly determines bandwidth of whole Metal halide perovskite a neotype low-cost solution processing semiconductor, with strong optical absorption, low trap density, and high carrier mobility, thus has been widely explored photoelectric detection applications. However, previously reported polycrystalline photodetectors exhibit limited...
Abstract Defect engineering is demonstrated to be an important factor in enhancing the electrochemical performance of lithium‐ion batteries by improving structural stability and ion diffusion. However, conventional synthetic methods have long complicated processes, making it challenging effectively easily introduce defects into electrode materials. In this work, a high‐temperature shock technique (HTS) with ultrafast heating cooling process that can quickly twin boundaries (TBs) phase‐pure...
Abstract The structure of polyanionic materials is conventionally known to be free transition metal migration and structurally stable when storing/releasing sodium ions. Herein, the observation enhanced cycling stability a typical cathode, Na 3 VCr(PO 4 ) (NVCP) at lower temperature (−15 °C vs 30 °C), triggers exploration its structural origins with surprising finding that migratable nature vanadium in NVCP leads detrimental degradation host upon cycling. correlation between long range short...
The fully inorganic perovskite lead cesium bromide single crystal (CsPbBr3 SC) is considered as an excellent candidate semiconductor for photodetectors because of its superior humidity resistance, thermal stability, and light stability compared with organic–inorganic hybrid perovskites well photoelectric properties such large absorption coefficient ultralong carrier migration distance. In this Letter, we utilize the inverse temperature solubility CsPbBr3 in ternary solvents to grow...
Although adsorption materials demonstrate a great potential in adsorbing dye molecules, fabricating an adsorbent that can adsorb multiple dyes at the same times has met with limited success. Here, magnetic core–shell Fe3O4@PPy@4-VP composites are successfully fabricated for treatment of variety including methylene blue (MB), malachite green (MG), rhodamine B (RhB), and alizarin red (AR). The effects concentration dyes, temperature, time on performances studied. properties further elucidated...
Abstract The rapid advancement of optoelectronic devices, particularly photodetectors, demands enhanced sensitivity for detecting weak light. In this study, MAPbI 3 ‐MAPbBr perovskite single crystal heterojunctions (SCHs) are fabricated via atomic force bonding using liquid‐phase epitaxy, with polydimethylsiloxane (PDMS) serving as a substrate protector. resulting SCHs photodetector exhibits self‐driven operation, an ultra‐low dark current, and high on‐off ratio 5.8 × 10 4 at 0 V bias. Under...
High-entropy doping has been demonstrated to be an effective method for enhancing the electrochemical performance of NASICON cathode materials, yet underlying mechanisms remain unclear. In this study, we employ V-based sodium superionic conductor (NASICON) materials as a model system investigate impact various substituting elements (Al, Cr, Fe, Ga, and In) on local structure material. This strategy is proven effectively suppress V-ion migration and, consequence, enhance reversibility...
Cesium–lead halide perovskite nanomaterials have been considered new-generation emitters that can meet the requirements of high photoluminescence efficiency and color standard Rec. 2020. However, their practical application is currently hindered by challenge achieving better stability growth in green solvents. In this study, we propose a green-solvent ligand-free strategy to achieve highly photoluminescent stable phosphors confining them within mesoporous zeolite. The whole process because...
FA1–x–yMAxCsyPbI3–zBrz perovskites exhibit excellent stability and optoelectronic performances in solar cells. However, the detailed contributions of each component toward preventing decomposition phase transition are not understood. Here, we link to lattice carrier transport from a single crystal perspective, which eliminates interference grain boundaries amorphous perovskite. The exquisite long-term stable trigonal SCs under 90% humidity proves that Br is indispensable, shrinks brings...
MAPbI3, one of the archetypical metal halide perovskites, is an exciting semiconductor for a variety optoelectronic applications. The photoexcited charge-carrier diffusion and recombination are important metrics in devices. Defects grain interiors boundaries MAPbI3 films cause significant nonradiative energy losses. Besides defect impact, carrier anisotropy introduced by structural electronic discrepancies related to crystal orientation vital topics. Here, large-sized single crystals (SCs)...
Abstract Fe 3 O 4 acted as the inner core, conducting polymer polypyrrole (PPy) was wrapped on surface of , and salicylaldehyde (SA) grafted to prepare /PPy‐SA composite. exhibited double adsorption properties for Manganese (Mn) (VII) from aqueous solution. And were systematically investigated. The influences pH, initial metal ion concentration temperature performance measured, showing that optimal pH is 2. Moreover, it found kinetics followed pseudo second order model, rate 46.1467...
All-polymer solar cells (all-PSCs) have been widely studied owing to their unique mechanical flexibility and stability. However, all-PSCs a lower efficiency than small-molecule acceptor-based PSCs. In the work, ternary quasi-all-polymer cell (Q-all-PSC) using synergy of strategy solid additive engineering is reported. The introduction PC71BM can not only match energy level photoactive materials with an improved open circuit voltage (VOC) devices but also enhance photon capture, which improve...
Owing to the ionic bond nature of Pb–I bond, iodide at interface perovskite polycrystalline films was easily lost during preparation process, resulting in formation a large number iodine vacancy defects. The presence defects can cause nonradiative recombination, provide pathway for migration, and be harmful power conversion efficiency (PCE) stability organic–inorganic hybrid solar cells (HPSCs). Here, order increase robustness iodides interface, strategy introduce anion binding effects...
Lead-free metal halide perovskites CsCu2X3 (X = Cl, Br, I) with a high photoluminescence quantum yield are promising materials for optoelectronic devices. However, the origin of (PL) emission is still under debate, and anomalous dependence PL on pressure unclear. Here, we systemically study effects structural, electronic, optical properties CsCu2I3 using diamond anvil cell (DAC) first-principles calculations. We argue that ground state structure belongs to pnma phase rather than cmcm ambient...
The optoelectronic performances of MAPbI3 are related to film morphology and crystal orientation. However, it is difficult directly quantify the anisotropy in thin films because controlling growth-oriented grains measuring difference within micro–nono regions have great technological challenges. Here, taking advantages pseudo-cubic single crystals (SCs) exposed with (110), (002), (200) facets, anisotropies compared. It reveals that periodic positive negative potential distributions at...
The isolated [PbBr6] octahedra in the zero-dimensional (0-D) perovskite Cs4PbBr6 crystal lattice trigger localized optical transitions, which exhibits extremely unique properties and brings controversial topics concerning its properties, particularly about photoluminescence (PL) nature. Herein, we successfully grown a series of large-scale Cs4PbBr6–mXm (X = Cl, I) single crystals (SCs) from Cs-rich solutions, partially replacing Br with Cl I, taking advantage superiorities SCs to explore...