A5102637196- Perovskite Materials and Applications
- Conducting polymers and applications
- Metal and Thin Film Mechanics
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Thermal Radiation and Cooling Technologies
- Additive Manufacturing Materials and Processes
- Optical properties and cooling technologies in crystalline materials
- Chalcogenide Semiconductor Thin Films
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Quantum Dots Synthesis And Properties
- Strong Light-Matter Interactions
- Metallurgy and Material Forming
- Surface Modification and Superhydrophobicity
- Advanced Fiber Laser Technologies
- High-Velocity Impact and Material Behavior
- High Entropy Alloys Studies
- Supercapacitor Materials and Fabrication
- Microstructure and Mechanical Properties of Steels
- Advanced materials and composites
- Microstructure and mechanical properties
- Fatigue and fracture mechanics
- Thin-Film Transistor Technologies
- Advanced battery technologies research
University of Science and Technology Beijing
2014-2024
Chinese Academy of Sciences
2020-2023
University of Chinese Academy of Sciences
2020-2023
Institute of Semiconductors
2020-2023
Commercial Aircraft Corporation of China (China)
2016
The mechanisms of sputter induced stress and damage in perovskite/silicon tandem solar cells were investigated for optimizing buffer layer materials transparent conductive oxides. A high power conversion efficiency 26.0% has been achieved.
One-dimensional (1D) organic-inorganic hybrid perovskite nanowires (NWs) with well-defined structures possess superior optical and electrical properties for optoelectronic applications. However, most of the NWs are synthesized in air, which makes susceptible to water vapor, resulting large amounts grain boundaries or surface defects. Here, a template-assisted antisolvent crystallization (TAAC) method is designed fabricate CH3NH3PbBr3 arrays. It found that as-synthesized NW array has...
Potassium-ion batteries (PIBs) as a new electrochemical energy storage system have been considered desirable candidate in the post-lithium-ion battery era. Nevertheless, study on this realm is its infancy; it urgent to develop electrode materials with high performance and low cost. Iron sulfides anode aroused wide attention by virtue of their merits theoretical capacities, environmental benignity, cost competitiveness. Herein, we constructed carbon-free crystal-like Fe1-xS demonstrated...
Abstract With the development of optoelectronic devices toward miniaturization, flexibility, and large‐scale integration, conventional submillimeter rigid encapsulation techniques rarely achieve conformational functionality while blocking water oxygen. At same time, sensitivity electronic with organic/metal/semiconductor components to humidity oxygen severely impairs their operational stability lifetime. Here, a nanometer micrometer scale organic/inorganic hybrid thin film (TFE)...
To date, plasmonic nanowire lasers mostly adopt hybrid waveguides, while there is a lack of study in terms the confinement effect and corresponding ultrafast dynamics non-hybridized lasers. Here, we report composed single CH3NH3PbBr3 on silver film without any insulating layer at room temperature. The exhibit lasing with around 1.9 ps decay rate 1 peak response time. Such values are among best ones ever reported. Interestingly, threshold same order as that their counterparts. low due to...
Au-coated CH 3 NH PbBr metallic cavity nanolasers provide a good platform for exploring the competition between plasmonic and photonic modes.
Abstract Lead halide perovskites have superior gain properties, and they can be mass produced into nanowire structures through chemical synthesis. The application of perovskite materials plasmonic lasers lowers the lasing threshold simplifies fabrication process. However, in nearly all previous reported cases, nanowires were randomly distributed onto metallic substrate when using method dry-transferring or direct vapor deposition. As a result, dimensions are random undesired photonic mode...
Optical frequency combs (OFCs) have great potential in communications, especially dense wavelength-division multiplexing. However, the size of traditional OFCs based on conventional optical microcavities or dispersion fibers is at least tens micrometers, far larger than that nanoscale electronic chips. Therefore, reducing to match chips necessity. Here, for first time our knowledge, we introduce surface plasmon polaritons (SPPs) construction realize a miniature device. The thickness device...
Abstract Cesium lead halide (CsPbBr 3 ) perovskite nanomaterials exhibit attractive optical properties, particularly in higher nonlinear effects and larger multiphoton absorption efficiency, compared with conventional semiconductors. The unique feature of stable lasing action under photon pumping conditions grants such materials great potential photonics. Herein, through an in-depth study the growing mechanism, all-inorganic a high crystalline quality tunable morphologies were synthesized,...
In order to provide guidance for the regulation of mechanical properties TC18 titanium alloy built by electron beam wire deposition (EBWD), fracture mechanism has been investigated. The EBWD exhibits columnar β-grains growing opposite heat flow. microstructure is composed basket weave microstructures and grain boundary α-phases. rupture originates at prone propagate along α-phases, leading decrease in elongation alloy. property mainly ductile fracture, which broken both normal stress shear...
In organic solar cells, the singlet and triplet excitons dissociate into free charge carriers with different mechanisms due to their opposite spin state. Therefore, ratio of directly affects photocurrent. Many methods were used optimize performance low-efficiency cell by improving excitons, which shows a long diffusion length. Here we observed that in high-efficiency systems, proportion under linearly polarized light excitation is higher than circularly light. Since transfer state has lower...
Lead halide perovskites have emerged as attractive photoelectric materials owing to their excellent performance, which demonstrates great potential for application in the optoelectronic field. A basic understanding of photogenerated carrier transport perovskite photodetectors is critical achieving high-performance devices. Here, we reported ultraviolet with a fast response based on Au-coated CH3NH3PbBr3 nanowires, were grown by an situ solution method. Interestingly, devices exhibited...
In organic solar cells, the singlet and triplet excitons dissociate into free charge carriers with different mechanisms due to their opposite spin state. Therefore, ratio of directly affects photocurrent. Many methods were used optimize performance low-efficiency cell by improving excitons, which shows a long diffusion length. Here we observed that in high-efficiency systems, proportion under linearly polarized light excitation is higher than circularly light. Since transfer state has lower...
Abstract Fracture toughness is an important index for the structural integrity assessment of ductile iron spent fuel transportation casks. tests require a long test period, high cost, and difficult operation. Therefore, Charpy V-notch impact energy value (KV) considered to predict fracture (K JIC ).In this study, tests(−80 °C, −60 −40 −20 0 20 40 60 80 °C) tests(−60 ferrite iron(FDI) were carried out. A K -KV model FDI in transition temperature region was proposed, taking into consideration...
Abstract This study characterizes the fractography of ferritic ductile iron under various loads, including tensile, fatigue and bending, impact conditions. The results indicate that fracture is primary mechanism observed during tensile testing at room temperature. resulting from exhibits characteristics similar to cleavage fracture, explains formation striations caused by joint effects dislocation slip oxidation crack tip stress. Under testing, main transitions brittle with decreasing At...