A5101964445- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Conducting polymers and applications
- Advanced Fiber Optic Sensors
- Perovskite Materials and Applications
- Optical Network Technologies
- Optical Systems and Laser Technology
- Photonic and Optical Devices
- Solid State Laser Technologies
- Advanced Sensor and Energy Harvesting Materials
- Luminescence and Fluorescent Materials
- Plasmonic and Surface Plasmon Research
- Quantum Dots Synthesis And Properties
- Laser Design and Applications
- Semiconductor Lasers and Optical Devices
- Laser Material Processing Techniques
- Nanomaterials and Printing Technologies
- Laser-Matter Interactions and Applications
- Chalcogenide Semiconductor Thin Films
- Image Retrieval and Classification Techniques
- Advanced Image and Video Retrieval Techniques
- Photonic Crystals and Applications
- Thin-Film Transistor Technologies
Renji Hospital
2025
Shanghai Jiao Tong University
2023-2025
State Key Laboratory on Integrated Optoelectronics
2016-2025
Jilin University
2016-2025
Kunming University of Science and Technology
2011-2025
Third Xiangya Hospital
2025
Central South University
2025
Shaanxi Provincial People's Hospital
2024-2025
Shaanxi Research Design Institute of Petroleum and Chemical Industry
2025
Materials Science & Engineering
2025
The crystal structures, elastic and anisotropic properties of CH3NH3BX3 (B = Sn, Pb; X Br, I) compounds as solar cell absorber layers are investigated by the first-principles calculations. type strength chemical bond B-X found to determine properties. bonds organic cations therefore crucial functionalities such absorbers. bulk, shear, Young's modulus ranges from 12 30 GPa, 3 15 37 respectively. Moreover, interaction among inorganic ions would have negligible effect for B/G Poisson's ratio...
In view of mass‐production and solution‐processing capabilities, graphene oxides (GOs), generally prepared by chemical oxidation graphite subsequent exfoliation in aqueous solution, are widely used as an effective route to graphene‐like materials. However, the oxygen‐containing groups (OCGs) on sheets make GO insulating, which significantly restricts its applications, especially for electronics. Therefore, reduction methods that remove OCGs become critical. recent years, addition thermal...
A facile and cost-effective preparation of moisture-responsive graphene bilayer paper by focused sunlight irradiation is reported. The smart shows properties due to selective adsorption water molecules, leading controllable actuation under humid conditions. In this way, graphene-based actuators including a claw, an orientable transporter, crawler robot are successfully developed.
The crystal structures are successfully established for tetragonal and orthorhombic CH3NH3PbX3 (X = I Br). equilibrium lattice parameters computed by the DFT+D2 method, results compared to experimental values. band dispersions electronic densities of states calculated HSE06, showing that their gaps in range from 1.63 2.3 eV. Although dielectric functions MAPbX3 compounds similar other semiconductors, absorption spectra bulk crystals drifted away visible light spectrum. effective mass tensors...
Abstract Stretchable organic light-emitting devices are becoming increasingly important in the fast-growing fields of wearable displays, biomedical and health-monitoring technology. Although highly stretchable have been demonstrated, their luminous efficiency mechanical stability remain impractical for purposes real-life applications. This is due to significant challenges arising from high strain-induced limitations on structure design device, materials used difficulty controlling...
Abstract Transparent conductive electrodes, as transmission windows of photons and electrons, play important roles in high‐performance organic optoelectronic devices. The replacement widely used indium tin oxide (ITO) electrodes has been attempted due to the increasing cost intrinsically brittle characteristics ITO. Ultrathin metal films, with excellent optoelectrical features, high flexibility, sufficient mechanical stability, have considered a potential candidate for use transparent...
We calculated the effective masses and electronic optical properties of CH3NH3SnX3 (X = Cl, Br, I) perovskites as a solar cell absorber using HSE06 hybrid functional. The computed band gaps are direct at Γ point, ranging from 1.67 to 3.0 eV. carriers decrease chlorine iodine. Moreover, their hole comparable those CH3NH3PbX3 Br phases. dielectric constant does not monotonically when going X Cl I for perovskites. Under small isotropic compressive stress, photon absorption efficiency is...
Spin and valley degrees of freedom in materials without inversion symmetry promise previously unknown device functionalities, such as spin-valleytronics. Control material with electric fields (ferroelectricity), while breaking additional symmetries, including mirror symmetry, could yield phenomena where chirality, spin, valley, crystal potential are strongly coupled. Here we report the synthesis a halide perovskite semiconductor that is simultaneously photoferroelectricity switchable chiral....
The instability of the buried interface poses a serious challenge for commercializing perovskite photovoltaic technology. Herein, we report polydentate ligand reinforced chelating strategy to strengthen stability by managing interfacial defects and stress. bis(2,2,2-trifluoroethyl) (methoxycarbonylmethyl)phosphonate (BTP) is employed manipulate interface. C=O, P=O two -CF
The instability of top interface induced by interfacial defects and residual tensile strain hinders the realization long-term stable n-i-p regular perovskite solar cells (PSCs). Herein, one molecular locking strategy is reported to stabilize adopting polydentate ligand green biomaterial 2-deoxy-2,2-difluoro-d-erythro-pentafuranous-1-ulose-3,5-dibenzoate (DDPUD) manipulate surface grain boundaries films. Both experimental theoretical evidence collectively uncover that uncoordinated Pb
The migration and diffusion of Li+ halide ions, as well the volatilization 4-tert butylpyridine (tBP), seriously restrain long-term operational stability n-i-p perovskite solar cells (PSCs). Herein, we employ l-glutamic acid dibenzyl ester 4-toluenesulfonate (GADET) to simultaneously modulate hole transport layer (HTL) buried interface, which stabilizes HTL minimizes interfacial energy loss by immobilizing Li+, tBP, ions passivating dual interface defects. After forming Spiro-OMeTAD•+TFSI–,...
Abstract The defects from functional layers and interface, the agglomeration of SnO 2 nanoparticles (NPs), poor perovskite crystallization are main barrier to further heightening power conversion efficiency (PCE) stability regular solar cells. Here, a bottom‐up multilayer manipulation strategy by pre‐embedding multisite racemic DL‐cysteine hydrochloride monohydrate (DLCH) into electron transport layer (ETL) is reported. positively negatively charged ETL, their interface can be passivated...
Image annotation plays an important role in image retrieval and management. However, the results of state-of-the-art methods are often unsatisfactory. Therefore, it is necessary to refine imprecise annotations obtained by existing methods. In this paper, a novel approach automatically original images proposed. On one hand, for Web images, textual information, e.g. file name surrounding text, used retrieve set candidate annotations. other non-Web that lack relevance model-based algorithm...
We present an ultra-small all-silica high temperature sensor based on a reflective Fabry-Perot modal interferometer (FPMI). Our FPMI is made of micro-cavity (approximately 4.4 microm) directly fabricated into fiber taper probe less than 10 mum in diameter. Its sensing head miniaturized single mode-multimode configuration without splicing. The mechanism the interference among reflected fundamental mode and excited high-order modes at end-faces. sensitivity approximately 20 pm/degrees C near...
In this work, we report the design, fabrication, and characterization of novel biochemical sensors consisting nanoscale grooves slits milled in a metal film to form two-arm, three-beam, planar plasmonic interferometers. By integrating thousands interferometers per square millimeter with microfluidic system, demonstrate sensor able detect physiological concentrations glucose water over broad wavelength range (400–800 nm). A sensitivity between 370 630 nm/RIU (RIU, refractive index units),...
SG-III laser facility is now the largest driver for inertial confinement fusion research in China. The whole can deliver 180 kJ energy and 60 TW power ultraviolet onto target, with balance better than 10%. We review system introduce performance here.
Abstract Flexible smart surfaces with tunable wettability are promising for emerging wearable uses. However, currently, superhydrophobic dynamic wetting behaviors rarely reported. Here, a skin‐like elastomer surface switchable lotus leaf and rose petal states is Direct laser writing technique employed one‐step, programmable, large‐scale fabrication of monolithic hierarchical micro‐nanostructures on elastomer, leading to strong water repellence. The topography can be finely regulated in rapid...
Abstract As the demand for display technology in consumer electronics and lighting panels increases, thin, light, high‐quality, more cost‐effective light‐emitting devices are required. Organic (OLEDs), satisfying criteria exactly, have been considered most promising next‐generation technique. In particular, an OLED based on flexible substrate enables device to be applied curved displays, electronic newspapers, wearable conceptual panels, has always spotlight both science industry. Great...
Reported here is a bioinspired fabrication of superhydrophobic graphene surfaces by means two‐beam laser interference (TBLI) treatment oxide (GO) films. Microscale grating‐like structures with tunable periods and additional nanoscale roughness are readily created on films due to induced ablation effect. Synchronously, abundant hydrophilic oxygen‐containing groups (OCGs) GO sheets can be drastically removed after TBLI treatment, which lower its surface energy significantly. The synergistic...
Perovskite QDs are promising platforms for light-emitting applications. Advances in perovskite QDs, including optoelectronic properties and device performance discussed.
We present a design concept of thin-film organic solar cells using photonic crystal as the electrode. Through excitation optical Tamm states (OTSs), proposed based (PC-OSCs) exhibit broad-band absorption enhancement owing to abnormal refractive index variation active layer. The overall absorptivity can be increased by ∼35% compared with that optimized conventional planar OSC. Remarkably, our easily manufactured PC-OSC exhibits almost same corrugated excellent performance comes from...
Abstract In the article by Hong‐Hua Fang et al. (doi: http://dx.doi.org/10.1002/lpor.201300222 ), published in Laser Photonics Rev. 8, 687–715 (2014), names of two authors references were wrongly spelt and citations text missing. This erratum is to correct this.
Abstract Stretchable light‐emitting diodes (LEDs) and electroluminescent capacitors have been reported to potentially bring new opportunities wearable electronics; however, these devices lack in efficiency and/or stretchability. Here, a stretchable organometal‐halide‐perovskite quantum‐dot LED with both high mechanical compliancy is demonstrated. The hybrid device employs an ultrathin (<3 µm) structure conformed on surface‐wrinkled elastomer substrate. Its luminescent up 9.2 cd A −1 ,...