Jiangnan Dai
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View article: An Ultrafast Charge‐Driven Topological Intercalation Prelithiation Strategy for Carbon‐Silicon Composite Anodes
An Ultrafast Charge‐Driven Topological Intercalation Prelithiation Strategy for Carbon‐Silicon Composite Anodes Open
Prelithiation emerges as an effective technique to enhance the initial Coulombic efficiency (ICE) and cycling stability of silicon oxide based carbon composite (C/SiO x ) anodes, yet traditional approaches remain plagued by sluggish kineti…
View article: Unique Multilayer Gradient Design of Al<sub>2</sub>O<sub>3</sub> Doping Phosphor‐In‐Glass Film Enabling High‐Luminance Laser Lighting
Unique Multilayer Gradient Design of Al<sub>2</sub>O<sub>3</sub> Doping Phosphor‐In‐Glass Film Enabling High‐Luminance Laser Lighting Open
Next‐generation high‐luminance laser lighting faces a crucial challenge in developing a transmissive color converter with efficient heat dissipation and phosphor conversion. Herein, a unique architecture of Al 2 O 3 particles gradient dopi…
View article: Efficient Management of Excitons in Near-Infrared Organic Light-Emitting Diodes Employing Interlayer Sensitiziing Strategy
Efficient Management of Excitons in Near-Infrared Organic Light-Emitting Diodes Employing Interlayer Sensitiziing Strategy Open
View article: Top-down micro and nano structuring of wide bandgap semiconductors for ultraviolet photodetection
Top-down micro and nano structuring of wide bandgap semiconductors for ultraviolet photodetection Open
This review focuses on top-down dry and wet etching of III-nitrides, SiC, Ga 2 O 3 , and diamond to create micro/nanostructured UV photodetectors, enabling enhanced light trapping and improved device performance.
View article: Triphenylamine-Engineered Nile Red Aiegen for Deep-Red/Nir Multimodal Applications: Optical Waveguides, Lipid Droplet Imaging, and Photodynamic Therapy
Triphenylamine-Engineered Nile Red Aiegen for Deep-Red/Nir Multimodal Applications: Optical Waveguides, Lipid Droplet Imaging, and Photodynamic Therapy Open
View article: Outstanding formaldehyde abatement performance and preferable resistance to SO 2 and H 2 O over CrO x -CeO x facilitated hierarchical porous biochars catalysts
Outstanding formaldehyde abatement performance and preferable resistance to SO 2 and H 2 O over CrO x -CeO x facilitated hierarchical porous biochars catalysts Open
A suite of CrCe oxides facilitated hierarchical porous biochars from walnut husks and rice straws (XCryCe1-y/WSAC) were readily synthesized for formaldehyde (HCHO) abatement. BET, XRD, XPS, SEM, H2-TPR, TG-DTG, and in situ DRIFTS were adop…
View article: Large-scale synthesis and exciton dynamics of monolayer MoS<sub>2</sub> on differently doped GaN substrates
Large-scale synthesis and exciton dynamics of monolayer MoS<sub>2</sub> on differently doped GaN substrates Open
Mixed dimensional van der Waals heterostructure based on layered two-dimensional molybdenum disulfide (MoS 2 ) interfaced to gallium nitride (GaN) has attracted tremendous attention due to its unique properties and application in novel ele…
View article: Controllable synthesis of high-aspect-ratio monolayer MoS2 nano-microribbons for high-performance phototransistors
Controllable synthesis of high-aspect-ratio monolayer MoS2 nano-microribbons for high-performance phototransistors Open
View article: Integrating <scp>2D</scp> layered materials with <scp>3D</scp> bulk materials as van der Waals heterostructures for photodetections: Current status and perspectives
Integrating <span>2D</span> layered materials with <span>3D</span> bulk materials as van der Waals heterostructures for photodetections: Current status and perspectives Open
In the last decade, two‐dimensional layered materials (2DLMs) have been drawing extensive attentions due to their unique properties, such as absence of surface dangling bonds, thickness‐dependent bandgap, high absorption coefficient, large…
View article: Novel Zwitterionic (In-Situ Modified Pes-N/Pes-Cooh) Mixed Matrixed Ultrafiltration Membranes with High Permeability and Anti-Fouling Property
Novel Zwitterionic (In-Situ Modified Pes-N/Pes-Cooh) Mixed Matrixed Ultrafiltration Membranes with High Permeability and Anti-Fouling Property Open
View article: Tunable Structured Algan-Based Nanoporous Distributed Bragg Reflectors for Light-Coupling Enhancement in Monolayer Mos2
Tunable Structured Algan-Based Nanoporous Distributed Bragg Reflectors for Light-Coupling Enhancement in Monolayer Mos2 Open
View article: Fabrication of wafer-scale nanoporous AlGaN-based deep ultraviolet distributed Bragg reflectors via one-step selective wet etching
Fabrication of wafer-scale nanoporous AlGaN-based deep ultraviolet distributed Bragg reflectors via one-step selective wet etching Open
In this paper, we reported on wafer-scale nanoporous (NP) AlGaN-based deep ultraviolet (DUV) distributed Bragg reflectors (DBRs) with 95% reflectivity at 280 nm, using epitaxial periodically stacked n-Al 0.62 Ga 0.38 N/u-Al 0.62 Ga 0.38 N …
View article: Flexible assembly of the PEDOT: PSS/ exfoliated β-Ga<sub>2</sub>O<sub>3</sub> microwire hybrid heterojunction for high-performance self-powered solar-blind photodetector
Flexible assembly of the PEDOT: PSS/ exfoliated β-Ga<sub>2</sub>O<sub>3</sub> microwire hybrid heterojunction for high-performance self-powered solar-blind photodetector Open
Motivated by the goals of fabricating highly reliable, high performance, and cost-efficient self-powered photodetector (PD) for numerous scientific research and civil fields, an organic-inorganic hybrid solar-blind ultraviolet (UV) PD base…
View article: Fabrication of Wafer-Scale Nanoporous Algan-Based Deep Ultraviolet Distributed Bragg Reflectors Via One-Step Selective Wet Etching
Fabrication of Wafer-Scale Nanoporous Algan-Based Deep Ultraviolet Distributed Bragg Reflectors Via One-Step Selective Wet Etching Open
View article: Near-octave-spanning breathing soliton crystal in an AlN microresonator
Near-octave-spanning breathing soliton crystal in an AlN microresonator Open
The soliton crystal (SC) was recently discovered as an extraordinary Kerr soliton state with regularly distributed soliton pulses and enhanced comb line power spaced by multiples of the cavity free spectral ranges (FSRs), which will signif…
View article: Transverse Electric Lasing at a Record Short Wavelength 244.63 nm from GaN Quantum Wells with Weak Exciton Localization
Transverse Electric Lasing at a Record Short Wavelength 244.63 nm from GaN Quantum Wells with Weak Exciton Localization Open
We have demonstrated a record short wavelength lasing at 244.63 nm with TE dominant polarization from GaN quantum wells (QWs) at room temperature (RT). The optical threshold of 310 kW/cm2 is comparable to state-of-the-art AlGaN QW lasers a…
View article: Photolithography allows high-Q AlN microresonators for near octave-spanning frequency comb and harmonic generation
Photolithography allows high-Q AlN microresonators for near octave-spanning frequency comb and harmonic generation Open
Single-crystal aluminum nitride (AlN) possessing both strong Pockels and Kerr nonlinear optical effects as well as a very large band gap is a fascinating optical platform for integrated nonlinear optics. In this work, fully etched AlN-on-s…
View article: Highly Integrated In Situ Photoenergy Gas Sensor with Deep Ultraviolet LED
Highly Integrated In Situ Photoenergy Gas Sensor with Deep Ultraviolet LED Open
According to the demands of the Internet of Things (IoTs), a gas sensor is demanded to be small, portable, and easy to integrate with the environment or structure in its application. Herein, an ingenious form of in situ photoenergy gas sen…
View article: Optical polarization characteristics and light extraction behavior of deep-ultraviolet LED flip-chip with full-spatial omnidirectional reflector system
Optical polarization characteristics and light extraction behavior of deep-ultraviolet LED flip-chip with full-spatial omnidirectional reflector system Open
Optical polarization characteristics and light extraction behavior of deep-ultraviolet (DUV) light-emitting diode (LED) flip-chip with full-spatial omnidirectional reflector (FSODR) have been investigated. FSODR is fabricated to be simulta…
View article: Ripening-resistance of Pd on TiO2(110) from first-principles kinetics
Ripening-resistance of Pd on TiO2(110) from first-principles kinetics Open
View article: III-Nitride Deep UV LED Without Electron Blocking Layer
III-Nitride Deep UV LED Without Electron Blocking Layer Open
AlGaN-based deep UV (DUV) LEDs generally employ a p-type electron blocking layer (EBL) to suppress electron overflow. However, Al-rich III-nitride EBL can result in challenging p-doping and large valence band barrier for hole injection as …
View article: Internal strain induced significant enhancement of deep ultraviolet light extraction efficiency for AlGaN multiple quantum wells grown by MOCVD
Internal strain induced significant enhancement of deep ultraviolet light extraction efficiency for AlGaN multiple quantum wells grown by MOCVD Open
In this work, combined analysis of internal strain effects on optical polarization and internal quantum efficiency (IQE) were conducted for the first time. Deep ultraviolet light extraction efficiency of AlGaN multiple quantum wells (MQWs)…
View article: Strain dependent anisotropy in photoluminescence of heteroepitaxial nonpolar a-plane ZnO layers
Strain dependent anisotropy in photoluminescence of heteroepitaxial nonpolar a-plane ZnO layers Open
Nonpolar a-plane ZnO layers with anisotropic in-plane strains were prepared on the three substrates of r-sapphire, a-GaN, and a-Al0.08GaN templates via a pulsed laser deposition system, to investigate the distinguishing anisotropic photolu…
View article: Improvement of Interface Thermal Resistance for Surface-Mounted Ultraviolet Light-Emitting Diodes Using a Graphene Oxide Silicone Composite
Improvement of Interface Thermal Resistance for Surface-Mounted Ultraviolet Light-Emitting Diodes Using a Graphene Oxide Silicone Composite Open
In this study, based on silicone composites with graphene oxide (GO) as a filler, a novel packaging strategy was proposed to reduce the interface thermal resistance of surface-mounted ultraviolet light-emitting diodes (UV-LEDs) and provide…
View article: Growth of Transition Metal Dichalcogenides and Directly Modulating Their Properties by Chemical Vapor Deposition
Growth of Transition Metal Dichalcogenides and Directly Modulating Their Properties by Chemical Vapor Deposition Open
The layered structure of transition metal dichalcogenides (TMDs) gives rise to many novel properties for functional applications in a wide range of fields.However, successful synthesis of TMDs and directly modulating properties of TMDs dur…
View article: Ag-Decorated Localized Surface Plasmon-Enhanced Ultraviolet Electroluminescence from ZnO Quantum Dot-Based/GaN Heterojunction Diodes by Optimizing MgO Interlayer Thickness
Ag-Decorated Localized Surface Plasmon-Enhanced Ultraviolet Electroluminescence from ZnO Quantum Dot-Based/GaN Heterojunction Diodes by Optimizing MgO Interlayer Thickness Open
We demonstrate the fabrication and characterization of localized surface plasmon (LSP)-enhanced n-ZnO quantum dot (QD)/MgO/p-GaN heterojunction light-emitting diodes (LEDs) by embedding Ag nanoparticles (Ag-NPs) into the ZnO/MgO interface.…
View article: Quantum confinement dependence of exciton localization in a-plane GaN/AlGaN multiquantum wells investigated by temperature dependent photoluminescence
Quantum confinement dependence of exciton localization in a-plane GaN/AlGaN multiquantum wells investigated by temperature dependent photoluminescence Open
The exciton localization effect in nonpolar a-plane GaN/AlGaN multiquantum wells (MQWs) structures with different quantum confinements (different well thicknesses or Al molar fractions of barrier) has been investigated by temperature depen…
View article: 3D Hierarchical Bi2S3 Nanostructures by Polyvinylpyrrolidone (PVP) and Chloride Ion-Assisted Synthesis and Their Photodetecting Properties
3D Hierarchical Bi2S3 Nanostructures by Polyvinylpyrrolidone (PVP) and Chloride Ion-Assisted Synthesis and Their Photodetecting Properties Open
A solvothermal method has been employed to synthesize bismuth sulfide (Bi 2 S 3 ) with three-dimensional (3D) hierarchical architectures. The influences of different types of surfactants and Cl − species on the size and morphology were inv…
View article: Influence of high-temperature postgrowth annealing under different ambience on GaN quantum dots grown via Ga droplet epitaxy
Influence of high-temperature postgrowth annealing under different ambience on GaN quantum dots grown via Ga droplet epitaxy Open
The influence of high-temperature postgrowth annealing (PGA) under NH3/H2, NH3/N2 ambience on the morphologies and nitridation degree of GaN/AlN QDs grown via droplet epitaxy is investigated. The results show that the size and density of G…
View article: Efficient optical coupling in AlGaN/GaN quantum well infrared photodetector via quasi-one-dimensional gold grating
Efficient optical coupling in AlGaN/GaN quantum well infrared photodetector via quasi-one-dimensional gold grating Open
In this letter, a new kind of grating, quasi-one-dimensional gold grating, has been proposed to enhance the optical coupling in AlGaN/GaN quantum well infrared photodetector (QWIP). The electric field distribution, current density and ener…