A5073386464- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- Advancements in Battery Materials
- Analytical Chemistry and Sensors
- Advanced Photocatalysis Techniques
- 2D Materials and Applications
- Electrochemical sensors and biosensors
- Optical properties and cooling technologies in crystalline materials
- Electrochemical Analysis and Applications
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Photonic and Optical Devices
- Nanowire Synthesis and Applications
- Organic Electronics and Photovoltaics
- Supercapacitor Materials and Fabrication
- MXene and MAX Phase Materials
- SARS-CoV-2 and COVID-19 Research
- Nanocluster Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Silicon Nanostructures and Photoluminescence
Collaborative Innovation Center of Quantum Matter
2022-2025
Peking University
2010-2025
Shenzhen Institutes of Advanced Technology
2025
Qufu Normal University
2019-2024
Shenzhen Technology University
2019-2024
University of Electronic Science and Technology of China
2024
South China Normal University
2024
Southwest Jiaotong University
2022-2024
Beijing Institute of Optoelectronic Technology
2024
Jiangxi University of Finance and Economics
2024
Abstract Wide‐bandgap (WBG) perovskite solar cells (PSCs) are acknowledged as promising candidates for multijunction tandem and building photovoltaics, which attract broad research interest in related communities. However, the performance of WBG PSCs based on mixed‐halide perovskites still lags far behind their pure‐iodide counterparts because complex compositional evolution, huge photovoltage deficits, intrinsic spectral losses. Here, by comprehensively understanding representative PSCs,...
Strain sensors have been attracting tremendous attention for the promising application of wearable devices in recent years. However, trade-off between high resolution, sensitivity, and broad detection range is a great challenge strain sensors. Herein, novel design hierarchical synergistic structure (HSS) Au micro cracks carbon black (CB) nanoparticles reported to overcome this challenge. The sensor based on designed HSS exhibit sensitivity (GF > 2400), resolution (0.2%) even under large...
Graphene-based, high quality two-dimensional electronic systems have emerged as a highly tunable platform for studying superconductivity. Specifically, superconductivity has been observed in both electron-doped and hole-doped twisted graphene moire systems, whereas crystalline so far only rhombohedral trilayer Bernal bilayer (BBG). Recently, enhanced demonstrated BBG due to the proximity with monolayer WSe2. Here, we report observation of series flavor-symmetry-breaking phases electron-...
Perovskite light-emitting diodes (PeLEDs) are the next promising display technologies because of their high color purity and wide gamut, while two classical emitter forms, i.e., polycrystalline domains quantum dots, encountering bottlenecks. Weak carrier confinement large leads to inadequate radiative recombination, surface ligands on dots main annihilation sites for injected carriers. Here, pinpointing these issues, we screened out an amphoteric agent, namely, 2-(2-aminobenzoyl)benzoic acid...
Lithium metal battery has been considered as one of the most promising candidates for next generation energy storage systems due to its high density. However, lithium may react with electrolyte, resulting in instability solid/liquid interface. The solid electrolyte interface (SEI) layer was found affect stability anode; real structure SEI couldn't be accurately analyzed so far. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) thought a powerful tool carry out three-dimensional (3D)...
Suppressing side reactions led to the formation of rational Dion–Jacobson 2D/3D surface heterostructures, achieving an optimal PCE 23.05% (certified 22.58%) for 1.68 eV perovskite solar cells.
Abstract The lunar soil samples returned by China's Chang'e‐5 (CE‐5) contain valuable information on geological evolutions the Moon. Herein, employing high‐resolution time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS), five rock chip from CE‐5 are characterized in‐depth, which reveal micro‐morphological and compositional features. From elemental/molecular distribution images, minerals such as pyroxene, ilmenite, feldspar, K‐rich glass, silica, silicate identified, along with their...
The engineering of quantum dot solids with low defect concentrations and efficient carrier transport through a ligand strategy is crucial to achieve (QD) optoelectronic devices. Here, we study the consequences various surface treatments on light emission properties PbS films using 1,3-benzenedithiol (1,3-BDT), 1,2-ethanedithiol (EDT), mercaptocarboxylic acids (MPA) ammonium sulfide ((NH4)2S). We first investigate influence different inter-dot separation, which mainly determines conductivity...
The commonly employed formamidinium (FA)-containing perovskite solar cells (PSCs) exhibit a severe phase instability problem, thereby limiting their commercial applications. Here, both stability and energy efficiency of FA-based PSCs were improved by treating the surface with pyrrolidinium hydroiodide (PyI) salts, resulting in 1D structure (PyPbI3), stacked on original 3D perovskite. By employing situ XRD measurements, we revealed that temperature-dependent transition activation barrier was...
Surface ligand chemistry is vital to control the synthesis, diminish surface defects, and improve electronic coupling of quantum dots (QDs) toward emerging applications in optoelectronic devices. Here, we successfully develop highly homogeneous dispersed AgBiS
Benzenedithiol (BDT) and ethanedithiol (EDT) ligand-exchange treatments can be used to cross-link colloidal PbS quantum dots into nanocrystalline film structures with distinct optoelectronic properties. Such provide a unique platform study the energy transfer between layers of different sizes. In this report, efficient exciton funneling recycling surface state-bound excitons is observed in cascaded dot-based multilayered superstructures, where from larger band gap or donor smallest acceptor...
Improvements in the light-harvesting capacity and carrier extraction are both significant to improve photovoltaic performance of perovskite solar cells (PSCs). It has been proved that local surface plasmon resonance (LSPR) based on metallic nanostructures is practical for capturing light enhance harvesting. Motivated by this, a special shaped Au nanoparticle, e.g., nanooctahedrons (Au NOs), with broadband LSPR peak suitable size controlled synthesized applied PSCs device. The power...