A5100397562- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Photochemistry and Electron Transfer Studies
- Quantum Dots Synthesis And Properties
- Porphyrin and Phthalocyanine Chemistry
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
- Organic Light-Emitting Diodes Research
- Free Radicals and Antioxidants
- Molecular Sensors and Ion Detection
- Photochromic and Fluorescence Chemistry
- 2D Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Nanocluster Synthesis and Applications
- Catalytic Processes in Materials Science
- Electronic and Structural Properties of Oxides
- Carbon and Quantum Dots Applications
- Copper-based nanomaterials and applications
- Nanoplatforms for cancer theranostics
- Catalytic Cross-Coupling Reactions
- Analytical Chemistry and Sensors
- Covalent Organic Framework Applications
- Molecular Junctions and Nanostructures
- Lanthanide and Transition Metal Complexes
State Key Laboratory of Molecular Reaction Dynamics
2014-2025
Dalian Institute of Chemical Physics
2016-2025
Chinese Academy of Sciences
2016-2025
Changchun Institute of Applied Chemistry
2007-2024
Fujian Normal University
2024
Fujian Institute of Research on the Structure of Matter
2024
Xiamen Institute of Rare-earth Materials
2024
Nanjing University of Science and Technology
2024
Institute of High Energy Physics
2023
East China University of Technology
2023
Low-dimensional metal halides have recently attracted extensive attention owing to their unique structure and photoelectric properties. Herein, we report the colloidal synthesis of all-inorganic low-dimensional cesium copper halide nanocrystals (NCs) by adopting a hot-injection approach. Using same reactants ligands, but different reaction temperatures, both 1D CsCu2 I3 nanorods 0D Cs3 Cu2 I5 NCs can be prepared. Density functional theory indicates that reduced dimensionality in compared...
Lead-free zero-dimensional (0D) organic-inorganic metal halide perovskites have recently attracted increasing attention for their excellent photoluminescence properties and chemical stability. Here, we report the synthesis characterization of an air-stable 0D mixed perovskite (C8 NH12 )4 Bi0.57 Sb0.43 Br7 ⋅H2 O, in which individual [BiBr6 ]3- [SbBr6 octahedral units are completely isolated surrounded by large organic cation C8 H12 N+ . Upon photoexcitation, bulk crystals exhibit...
Zero-dimensional (0D) lead-free perovskites have unique structures and optoelectronic properties. Undoped Sb-doped all inorganic, lead-free, 0D perovskite single crystals A2 InCl5 (H2 O) (A=Rb, Cs) are presented that exhibit greatly enhanced yellow emission. To study the effect of coordination H2 O, A3 InCl6 also synthesized further studied. The photoluminescence (PL) color changes from to green Interestingly, quantum yield (PLQY) realizes a great boost <2 % 85-95 through doping Sb3+ . We...
Abstract All‐inorganic zero‐dimensional (0D) metal halides have recently received increasing attention due to their excellent photoluminescence (PL) performance and high stability. Herein, we present the successful doping of copper(I) into 0D Cs 2 ZnBr 4 . The incorporating Cu + cations enables originally weakly luminescent exhibit an efficient blue emission centered at around 465 nm, with a quantum yield (PLQY) 65.3 %. Detailed spectral characterizations, including ultrafast transient...
Schematic representation of GQD formation from graphite.
Abstract Low‐dimensional metal halides have recently attracted extensive attention owing to their unique structure and photoelectric properties. Herein, we report the colloidal synthesis of all‐inorganic low‐dimensional cesium copper halide nanocrystals (NCs) by adopting a hot‐injection approach. Using same reactants ligands, but different reaction temperatures, both 1D CsCu 2 I 3 nanorods 0D Cs Cu 5 NCs can be prepared. Density functional theory indicates that reduced dimensionality in...
Lead-free halide double perovskites (DPs) have attracted great attention due to their stability, nontoxicity and good photophysical property. In this work, we report a new, small-bandgap Cs2CuSbCl6 DP nanocrystals (NCs) with bandgap of 1.66 eV, which is the smallest in reported lead-free three-dimensional NCs. Density functional theory calculations confirm that has an indirect 1.70 agreement experimental result. The property NCs studied by combination femtosecond transient absorption (TA)...
Abstract Halide double perovskites have been regarded as promising alternatives to famous lead halide in the field of luminescent materials. However, low‐emission efficiency pristine ones and lack efficient blue emitters remain considerable obstacles for their applications light‐emitting devices. Here, an air‐stable, all‐inorganic Sc‐based perovskite Cs 2 NaScCl 6 is reported, which exhibits strong emission peaking at 445 nm with averaged quantum yield 29.05% (the highest reported value...
Abstract As the increasing demand of lighting display technology, environmentally‐friendly, economic light‐emitting materials with high performance are required. Herein, a novel solution‐processed, highly emissive copper chloride compound β‐Cs 3 Cu 2 Cl 5 is reported. The crystal structure determined by Rietveld refinement powder X‐ray diffraction patterns shows that corner‐sharing tetrahedral Cu–Cl chains surrounded Cs + cations, yielding one‐dimensional at molecular level. all‐inorganic...
Polymer nanocomposites are usually made by incorporating dried nanoparticles into polymer matrices. This would easily lead to aggregation of and then readily bring about opaqueness for based on functionally transparent polymers. In this work, preparation highly ZnO quantum dots (ZnO-QDs)/epoxy that can emit intense luminescence was reported the first time uniformly dispersing in a epoxy resin via direct dispersion method. The without drying matrix could effectively avoid fine showed good...
The long carrier lifetimes in perovskite single crystals have drawn significant attention recently on account of their irreplaceable contribution to high-performance photovoltaic (PV) devices. Herein, the optical and optoelectronic properties CH3NH3PbI3 CH3NH3PbI3–xBrx (with five different contents Br doped) were investigated. Notably, a superior lifetime up 262 μs was observed (I/Br = 10:1 precursor) single-crystal PV device under 1 sun illumination, which is two times longer than that...
Abstract Zero‐dimensional (0D) lead‐free perovskites have unique structures and optoelectronic properties. Undoped Sb‐doped all inorganic, lead‐free, 0D perovskite single crystals A 2 InCl 5 (H O) (A=Rb, Cs) are presented that exhibit greatly enhanced yellow emission. To study the effect of coordination H O, 3 6 also synthesized further studied. The photoluminescence (PL) color changes from to green Interestingly, quantum yield (PLQY) realizes a great boost <2 % 85–95 through doping Sb 3+...
In contrast to Ti4+-containing titanium dioxide (TiO2), which has a wide bandgap (∼3.0 eV) and been widely explored for catalysis energy applications, sesquioxide (Ti2O3) with an intermediate valence state (Ti3+) possesses ultranarrow (∼0.1 much less investigated. Although the importance of Ti3+ applications TiO2 is recognized, connection between Ti2O3 transformation pathway remain unknown. Herein, we investigate oxidation-induced structural, phase, property evolution using complementary...
Abstract Low‐dimensional lead‐free metal halides have recently attracted a great deal of attention for their unique photoluminescence properties. In this work, new all‐inorganic zero‐dimensional (0D) rare‐earth perovskite, namely Cs 2 ScCl 5 ·H O is reported. The 0D crystal exhibits rare phenomenon excitation‐wavelength dependent emission from blue‐green to white yellow at room temperature. Spectroscopic characterizations indicate the tunable originated two distinct self‐trapped exciton...
Single molecule magnets (SMMs) constitute a pivotal class of nanoscale molecular with promising potential across various domains such as high-density information storage, quantum computing, and spin electron devices. Among these, lanthanide-based SMMs have garnered significant attention in recent research due to their distinctive magnetic coordination properties, offering prospects for substantial advancements storage technologies. Over the past three decades, considerable efforts been...
Abstract Lead‐free metal halide double perovskites have emerged as promising scintillators owing to their superior optoelectronic properties, low‐cost and solution processability. However, it is still challenging develop high‐performance flexible X‐ray based on the B(I)‐site alkali modulation in lead‐free perovskite nanocrystals (NCs). Herein, a series of novel Cs 2 B(I)GdCl 6 (B: Li, Na, K) A B(I)M(III)X NCs structures are successfully synthesized, optical scintillator properties which...