A5090721101- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Solid-state spectroscopy and crystallography
- Nanocluster Synthesis and Applications
- ZnO doping and properties
- 2D Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Supramolecular Self-Assembly in Materials
- Advanced Photocatalysis Techniques
- Polyoxometalates: Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Silicon Nanostructures and Photoluminescence
- Ga2O3 and related materials
- nanoparticles nucleation surface interactions
- Advanced Nanomaterials in Catalysis
- Copper-based nanomaterials and applications
- Advancements in Battery Materials
- Organic Light-Emitting Diodes Research
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- Luminescence Properties of Advanced Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Catalytic Processes in Materials Science
- Nanowire Synthesis and Applications
- Carbon and Quantum Dots Applications
Nanjing Normal University
2016-2025
Nanjing University
1997-2025
Southwest University of Science and Technology
2024
Nanjing Library
2014-2019
Collaborative Innovation Center of Advanced Microstructures
2014-2015
Johannes Gutenberg University Mainz
2011-2013
Tsinghua University
2008-2009
Fudan University
2006-2007
Jiangsu Ocean University
2006
SnO2 quantum dots (QDs) and ultrathin nanowires (NWs) with diameters of approximately 0.5-2.5 1.5-4.5 nm, respectively, were controllably synthesized in a simple solution system. They are supposed to be ideal models for studying the continuous evolution quantum-confinement effect 1D --> 0D systems. The observed transition from strong weak confinement QDs NWs is interpreted through use Brus effective-mass approximation Nosaka finite-depth well model. Photoluminescence properties that...
Perovskite and chalcogenide quantum dots (QDs) are important nano semiconductors. It has been a challenge to synthesize heterostructural QDs combining perovskite with tailorable photoelectronic properties. In this report, CsPbX3-PbS (X = Cl, Br, I) were successfully synthesized via room temperature in situ transformation route. The show tunable dual emission feature the visible near-infrared (NIR) photoluminescence (PL) corresponding CsPbX3 PbS, respectively. Typically, formation evolution...
Inorganic CsPbX3 (X = Cl, Br, I, or hybrid among them) perovskite quantum dots (IPQDs) are promising building blocks for exploring high performance optoelectronic applications. In this work, the authors report a new structure that marries IPQDs to silicon nanowires (SiNWs) radial junction structures achieve ultrafast and highly sensitive ultraviolet (UV) detection in solar-blind spectrum. A compact uniform deployment of upon sidewall low-reflective 3D junctions enables strong light field...
Perovskite structured CsPbX 3 (X = Cl, Br or I) quantum dots (QDs) have attracted great attention in the past few years for appealing application potentials photovoltaic and optoelectronic devices. In this report, QDs are shown to perform as a new probe metal ions with high sensitivity, selectivity instant response by quenching enhancing of photoluminescence (PL). Through experimental calculation efforts, probing mechanisms investigated. A wide window Cu 2+ Yb 3+ ranging from 2 × 10 −9 −6 m...
Chirality evolution from molecule levels to the nanoscale in an achiral system is a fundamental issue that remains undiscovered. Here, we report assembly of polyoxometalate (POM) clusters into chiral subnanostructures systems by programmable single-molecule interactions. Driven competing binding Ca2+ and surface ligands, POM assemblies would twist helical nanobelts, nanorings, nanotubes with tunable helicity. Chiral molecules can be used differentiate formation energies isomers immobilize...
Abstract Low dimensional semiconductor nanomaterials have shown their tailorable properties for a variety of promising applications in decades. Here general strategy to synthesize all‐inorganic CsPbX 3 (X = Cl, Br, I or mixture) perovskite 2D nanoplates by introducing additional metal halides MX' 2 (M Cu, Zn, Al Pb, etc.; X' Br I) is reported. These uniform thickness and tunable size, which can be feasibly controlled the component ratio halides, temperature, time, ligands. The well‐defined...
Low-dimensional nanomaterials, owing to their unique and versatile properties, are very attractive for enormous electronic optoelectronic applications. PbS quantum dots (QDs), characterized by a large Bohr radius size-tunable bandgap, especially interesting photonic applications in the near-infrared region. Here, oleic acid capped colloidal QDs as saturable absorber investigated ultrashort-pulse generation. The exhibit outstanding nonlinear absorption properties at 1550 nm: modulation depth...
Scientific and industrial interest on perovskite semiconductor materials has grown rapidly in recent years. Through the efforts of researchers professionals chemistry, physics, electronics, etc., many records based perovskites have been are being refreshed. The brilliant performances emerge not only from excellent properties themselves, but also originate composite material systems hybridizing with heteromaterials. Herein, first, crystal nanostructures materials, semiconductor‐based...
Monodisperse and pure phase zirconia (tetragonal: T-ZrO2; monoclinic: M-ZrO2) nanocrystals with finely tuned sizes as well ultrathin T-ZrO2 nanowires have been selectively synthesized by a facile solvothermal method. For the first time, diagram of size to effective strain was mapped for both M-ZrO2, which gives good explanation size- cation doping-dependent stability two phases on sub-10 nm scale. This work may expand our understanding properties not only zirconia, but also various other...
Abstract CsPbX 3 (X = Cl, Br, I) perovskite nanowires and nanorods are important 1D quasi semiconductor nanomaterials. They have shown significant prospect in optic optoelectronic applications, especially for their adaptability to flexible devices, good carrier transport performance, polarized absorption, emission properties. Due the high dependence of property morphology, it is crucial develop synthesis methods with continuous diameter length tunability 1D/quasi perovskites. In this report,...
Ultrathin InOOH nanowires with a diameter of approximately 2 nm and length up to 200 have been synthesized by hydrolysis reaction in solution system. Their transformations c-In(2)O(3) nanocrystals rh-In(2)O(3) investigated. A dissolution-recrystallization (in solution) or size-related decomposition-recrystallization air) mechanism is indicated for the former transformation; size- surface-determined transformation proposed latter. These results will help understand control phase stability...
Repeated precipitation of colloidal semiconductor quantum dots (QD) from a good solvent by adding poor leads to an increasing number QD oligomers after redispersion in the solvent. By using density gradient ultracentrifugation we have been able separate monomer, dimer, and trimer fractions higher such solutions. In corresponding dimers trimers enriched up 90% 64%, respectively. Besides directly coupled oligomers, were also assembled linkage with rigid terrylene diimide dye (TDI) separated...
Abstract Light‐emitting diodes based on perovskite quantum dots have attracted much attention since they can be applied in low‐cost display, biosensors, and other optoelectronic devices. Here, all‐inorganic light‐emitting n‐type dots/p‐Si heterojunction are fabricated. Both the green red light emission achieved at room temperature. The output power density is 0.14 mW cm −2 for device 0.25 one. relatively low turn voltage high intensity attributed to small hole injection barrier between CsPbI...
Light-harvesting complex (LHCII) of the photosynthetic apparatus in plants is attached to type-II core-shell CdTe/CdSe/ZnS nanocrystals (quantum dots, QD) exhibiting an absorption band at 710 nm and carrying a dihydrolipoic acid coating for water solubility. LHCII stays functional upon binding QD surface enhances light utilization QDs significantly, similar its light-harvesting function photosynthesis. Electronic excitation energy transfer about 50% efficiency shown by donor fluorescence...
Abstract Combining inorganic perovskite quantum dots (IPQDs) devices with Si platform is an interesting topic since it helpful for realizing the optoelectronic integration as well multiple‐functional electronics in a compact and lightweight format. However, poor energy band alignment between IPQDs limits device performance, such emitting efficiency. Here, light‐emitting diodes (LEDs) structure proposed by inserting poly‐TPD (poly[ N , ′‐bis(4‐butylphenyl)‐ ′‐bis(phenyl)‐benzidine]) layer...
Abstract All‐Inorganic perovskite CsPbX 3 (X = Cl, Br, I) quantum dots (QDs) have attracted tremendous attention in the past few years for their appealing performance optoelectronic applications. Major properties of QDs include positive photoconductivity (PPC) and defect tolerance in‐band trap states. Here it is reported that when hybridizing with indium tin oxide (ITO) nanocrystals to form ‐ITO nano‐heterojunctions (NHJs), a voltage tuned photoresponse—from PPC negative (NPC) transform—is...
Transition metal nitrides (TMNs) nanostructures possess distinctive electronic, optical, and catalytic properties, showing great promise to apply in clean energy, optoelectronics, catalysis fields. Nonetheless, phase-regulation of NiFe-bimetallic nanocrystals or nanohybrid architectures confronts challenges their electrocatalytic overall water splitting (OWS) performances are underexplored. Herein, novel pure-phase Ni2+x Fe2-x N armored with amorphous N-doped carbon (NC) nanoparticles...
The phenomenon of chiral symmetry breaking during the crystallization achiral molecules or ions, which leads to formation controllable enantiomerically pure crystals, has garnered significant interest but remains a challenge fully overcome. This presents particularly formidable obstacle in creation three-dimensional (3D) structured all-inorganic perovskites, further complicated by their crystalline space groups. In this report, we successfully synthesized right- left-handed (P/M) 3D...
Uniform F-substituted HAp nanotubes with different aspect ratios and surface properties have been successfully prepared via a hydrothermal synthetic route. A small amount of 3% F doping into can lead to the formation nanotubes. This study will provide not only novel building blocks for construction artificial bones or other composites mechanical but also new strategy controlled growth inorganic
Size effects in the oriented-attachment (OA) growth process of Cu nanoseeds were found. Monodispersed with average diameters 2.2, 3.4, and 5.2 nm controllably synthesized by reduction copper acetate a boiling solvent using dodecanethiol (DT) as stabilizer sulfur source sulfide. These then treated under solvothermal conditions. When smaller than 5 nm, Cu(2)S nanorods lengths approximately 30-100 2-4 obtained at lower temperatures, nanodisks 6-13 thicknesses higher temperatures. Once diameter...