A5100338922- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Plasmonic and Surface Plasmon Research
- ZnO doping and properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Nanocluster Synthesis and Applications
- X-ray Diffraction in Crystallography
- Neuroinflammation and Neurodegeneration Mechanisms
- Metamaterials and Metasurfaces Applications
- Immune Response and Inflammation
- Thermal Radiation and Cooling Technologies
- Pharmacological Effects of Natural Compounds
- Crystallization and Solubility Studies
- Molecular Junctions and Nanostructures
- Dielectric materials and actuators
- Advanced Thermoelectric Materials and Devices
- Chemokine receptors and signaling
- Analytical Chemistry and Sensors
- Lightning and Electromagnetic Phenomena
- Ion-surface interactions and analysis
Huazhong University of Science and Technology
2014-2025
Xi'an Technological University
2022-2024
Union Hospital
2015-2023
Union Hospital
2023
Southwest Medical University
2022
Wuhan National Laboratory for Optoelectronics
2017-2019
University of Toronto
2011
Colloidal quantum dot (CQD) photovoltaics offer a promising approach to harvest the near-IR region of solar spectrum, where half sun's power reaching earth resides. High external efficiencies have been obtained in visible lead chalcogenide CQD photovoltaics. However, corresponding for band gap radiation near-infrared lag behind because thickness photovoltaic layers from which charge carriers can be extracted is limited by short carrier diffusion lengths. Here, we investigate, using...
N-type PbS colloidal-quantum-dot (CQD) films are fabricated using a controlled halide chemical treatment, applied in an inert processing ambient environment. The new materials exhibit mobility of 0.1 cm2 V−1 s−1. halogen ions serve both as passivating agent and n-dope the via substitution at surface chalcogen sites. majority electron concentration across range 1016 to 1018 cm−3 is varied systematically.
Abstract Quantum dots (QDs)‐embedded inorganic glasses combine the outstanding luminescent properties of QDs with chemical, mechanical, and thermal stability glasses, overcoming instability bottleneck facilitating their wide endurable applications such as nonlinear optical devices, light emission, signal amplification in fiber‐optic communication system. Typical incorporated into include IIB‐VIA (e.g., ZnO, CdSe), IVB‐VIA PbS), halide perovskite (CsPbBr 3 , et al.) QDs. Here, preparation...
Lead sulfide (PbS) colloidal quantum dots (CQDs) solar cells possess the advantages of absorption into infrared, solution processing, and multiple exciton generation, making them very competitive as a low‐cost photovoltaic alternative. Employing an n‐i‐p ZnO/tetrabutylammonium (TBAI)–PbS/ethanedithiol (EDT)–PbS device configuration, present study reports 9.0% through ZnMgO electrode engineering graphene doping. Sol–gel‐derived Zn 0.9 Mg 0.1 O buffer layer shows better transparency higher...
Abstract Trap states in colloidal quantum dot (QD) solids significantly affect the performance of QD solar cells, because they limit open‐circuit voltage and short circuit current. The {100} facets PbS QDs are important origins trap due to their weak or missing passivation. However, previous investigations focused on synthesis, ligand exchange, passivation approaches ignored control for a given size. Herein, suppressed from source via facet QDs. ≈3 nm minimized by tuning balance between...
Abstract Implantable power sources face great challenges in balancing multiple factors including high performance, biocompatibility, mechanical properties for soft tissue fit, and biodegradability. Toward this goal, a simple feasible method is proposed to prepare implantable hydrogel‐based supercapacitor (SC). Specially, multinetwork conductive electrode situ formed by aminated‐reduced‐graphene‐oxide‐and‐methacrylic‐anhydride‐comodified sericin (SrMA/A‐rGO) sequentially cross‐linking with...
Stretchable gas sensors that accommodate the shape and motion characteristics of human body are indispensable to a wearable or attachable smart sensing system. However, these usually have poor response recovery kinetics when operated at room temperature, especially suffer from humidity interference mechanical robustness issues. Here, we demonstrate first fully stretchable which temperature with enhanced stability against humidity. We created crumpled quantum dot (QD) layer on elastomeric...
Traditional photoconductive photodetectors (PDs) commonly respond to higher energy photons compared with the bandgaps of PD active materials. Different from wide detection spectra traditional PDs, present reported PbS quantum dot (QD) PDs can detect spectra-selective light source. Spectra-selective (ss-PDs) perovskite/QDs and QD/QDs were respectively implemented by integrating two functional layers. The top layer (facing light) was utilized filter non-target bottom used for detection....
Efficient PbS quantum-dot solar cells were achieved through SnO<sub>2</sub>–Cl interface passivation.
The recently reported quantum junction architecture represents a promising approach to building rectifying photovoltaic device that employs colloidal dot layers on each side of the p-n junction. Here, we report an optimized solar cell leverages improved aluminum zinc oxide electrode for stable contact n-side and silver doping p-layer greatly enhances photocurrent by expanding depletion region in device. These improvements result greater stability power conversion efficiency 6.1% under AM1.5...
Tunable plasmonic resonance induced by the collective oscillation of electrons on metallic nanostructures can excellently enhance light response ZnO films, which provides an effective way to break through limitation performance photodetectors. Here, broad-band high-performance ZnO/Au heterostructures photodetectors with various morphologies self-assembled Au nanoantennas are fabricated via a facile approach under spin-coated colloidal quantum dots films. With systematic control growth...
Wearable and sensitive photodetectors (PDs) have been demonstrated based on a blend film of PbS quantum dots (QDs) QDs modified multiwalled carbon nanotubes (MWCNTs). Owing to the synergetic effect from high light sensitivity excellent conductive mechanical properties MWCNTs, PDs show flexibility performance: device responsivity detectivity reach 583 mA/W 3.25 × 1012 Jones, respectively, could stand large number (at least 10 000 cycles) wide angle (up 80°) bending. Furthermore, wearable...
Strongly quantum confined ZnS dots were synthesized and solar-blind deep ultraviolet photodetectors fabricated <italic>via</italic> a solution process.
Abstract Background Circadian rhythm disruption (CRD) affects the expression levels of a range biological clock genes, such as brain and muscle ARNT‐Like‐1 (BMAL1), which is considered to be an important factor in triggering or exacerbating inflammatory response. However, underlying effect CRD on pathogenesis apical periodontitis, common oral disease, currently remains unknown. Exploring effects pathogenic mechanisms periodontitis will beneficial providing new ideas for prevention treatment...
Here we numerically and experimentally explore the rich phenomena in optical responses local electromagnetic fields of a MIM absorber mediated by dispersive spacer. We first show that line shape spectral absorption is strongly modified interaction between plasmonic resonances phonons silicon dioxide Importantly, broadening long wave infrared range achieved tuning strength coupling. Modification to field distribution epsilon-near-zero region also studied. The incident-angle dependence...
Abstract Lead chalcogenide quantum dot (QD) infrared (IR) solar cells are promising devices for breaking through the theoretical efficiency limit of single‐junction by harvesting low‐energy IR photons that cannot be utilized common devices. However, device performance QD photovoltaic is limited restrictive relation between open‐circuit voltages ( V OC ) and short circuit current densities J SC ), caused contradiction surface passivation electronic coupling solids. Here, a strategy developed...