Xinqiang Wang
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View article: High power density gallium nitride radio frequency transistors via enhanced nucleation in heteroepitaxy
High power density gallium nitride radio frequency transistors via enhanced nucleation in heteroepitaxy Open
Gallium-nitride high-electron-mobility-transistor is an industrial leading contender for high-frequency and high-power radio-frequency applications. However, the record output-power-density has remained stagnant for nearly two decades, lim…
View article: Identification of Poria Origin Based on Multi-Matrix Projection Discrimination of PCA
Identification of Poria Origin Based on Multi-Matrix Projection Discrimination of PCA Open
This study proposes a rapid method for identifying the geographical origin of Poria by combining Raman spectroscopy with an improved PCA algorithm—multi-matrix projection discrimination analysis. Poria samples from four Chinese provinces—Y…
View article: Denoising method for spatial heterodyne interferograms based on a convolutional encoder-decoder and transformer
Denoising method for spatial heterodyne interferograms based on a convolutional encoder-decoder and transformer Open
The spatial heterodyne spectrometer may be affected by noise during detection, causing target spectral features to be obscured and preventing the acquisition of required information. Therefore, effective methods are needed to reduce the im…
View article: Structures and zinc ion transport pathways of the human SLC39A family of metal transporters
Structures and zinc ion transport pathways of the human SLC39A family of metal transporters Open
The SLC39A (ZIP) family of zinc ion transporters play a pivotal role in maintaining zinc homeostasis, which is essential for numerous physiological processes involving enzyme catalysis, protein structure and regulation in signal transducti…
View article: Spectral Reconstruction Method for Specific Spatial Heterodyne Interferograms Based on Deep Neural Networks
Spectral Reconstruction Method for Specific Spatial Heterodyne Interferograms Based on Deep Neural Networks Open
The spatial heterodyne spectrometer is an interferometric spectrometer specifically designed for particular detection targets, capable of achieving ultra-high spectral resolution within a designated spectral range. As the demand for signal…
View article: Wafer scale III-nitride deep-ultraviolet vertical-cavity surface-emitting lasers featuring nanometer-class control of cavity length
Wafer scale III-nitride deep-ultraviolet vertical-cavity surface-emitting lasers featuring nanometer-class control of cavity length Open
III-nitride AlGaN-based deep-ultraviolet vertical-cavity surface-emitting lasers (DUV-VCSELs) have shown a great application potential in optical atomic clock, maskless photolithography, etc. Nevertheless, the detuning issue owing to the u…
View article: Unveiling interfacial dead layer in wurtzite ferroelectrics
Unveiling interfacial dead layer in wurtzite ferroelectrics Open
Wurtzite ferroelectrics hold immense promise to revolutionize modern micro- and nano-electronics due to their compatibility with semiconductor technologies. However, the presence of interfacial dead layers with irreversible polarization li…
View article: Experimentally Validated Design Principles of D‐Block Transition Metal Single‐Atom Non‐Dissociative Chemisorption Solid‐State Hydrogen Storage Materials
Experimentally Validated Design Principles of D‐Block Transition Metal Single‐Atom Non‐Dissociative Chemisorption Solid‐State Hydrogen Storage Materials Open
D‐block transition metal (TM) single‐atom non‐dissociative chemisorption solid‐state H 2 storage materials (MSA‐NC‐SHSMs) hold great promise for simultaneously achieving high capacity and fast H 2 adsorption/desorption rates. This potentia…
View article: Correction of Error Interference Fringes Based on Automatic Spectral Analysis
Correction of Error Interference Fringes Based on Automatic Spectral Analysis Open
When interferograms in space heterodyne spectrometers exhibit tilted or distorted fringes, significant errors may occur in the demodulated spectral information. To address this issue, we propose a method for interferogram correction based …
View article: Ferroelectric materials, devices, and chips technologies for advanced computing and memory applications: development and challenges
Ferroelectric materials, devices, and chips technologies for advanced computing and memory applications: development and challenges Open
Hafnium (Hf) oxide-based ferroelectric materials have emerged as a transformative platform for next-generation non-volatile memory and advanced computing technologies. This review comprehensively examines the development, challenges, and a…
View article: Research on High-Precision Time–Frequency Phase-Synchronization Transmission Technology for Free-Space Optical Communication Systems on Mobile Platforms
Research on High-Precision Time–Frequency Phase-Synchronization Transmission Technology for Free-Space Optical Communication Systems on Mobile Platforms Open
This paper proposes a free-space time–frequency phase (TFP)-synchronization transmission architecture based on optoelectronic hybrid technology, addressing the high-precision TFP synchronization and high-speed communication requirements be…
View article: Research on Maximum Likelihood Decoding Algorithm and Channel Characteristics Optimization for 4FSK Ultraviolet Communication System Based on Poisson Distribution
Research on Maximum Likelihood Decoding Algorithm and Channel Characteristics Optimization for 4FSK Ultraviolet Communication System Based on Poisson Distribution Open
This study focuses on a 4FSK-modulated ultraviolet (UV) communication system, introducing an innovative symbol-level maximum likelihood decoding approach based on Poisson statistics. A forward error correction (FEC) coding mechanism is int…
View article: Experimental determination of giant polarization in wurtzite III-nitride semiconductors
Experimental determination of giant polarization in wurtzite III-nitride semiconductors Open
Polarization engineering has revolutionized the photonic and electronic landscape of III-nitride semiconductors over the past decades. However, recent revelations of giant ferroelectric polarization in wurtzite III-nitrides challenge the l…
View article: Research on Sugar Concentration Sensing Based on Real-Time Polarization and Interaction Effects
Research on Sugar Concentration Sensing Based on Real-Time Polarization and Interaction Effects Open
This paper presents a non-contact method for detecting the sugar concentration in solutions based on real-time polarization characteristics and an interaction effects model. The feasibility of using polarization imaging technology for suga…
View article: H‐Embedding Induced Electron Localization in Pd Lattice for Improving Electrochemical Hydrogen Purification
H‐Embedding Induced Electron Localization in Pd Lattice for Improving Electrochemical Hydrogen Purification Open
Electrochemical hydrogen purification (EHP) technology with high‐efficiency and easy‐operation holds great potential in blended hydrogen transportation, which is currently restricted to proton exchange membrane system and Pt‐based catalyst…
View article: Residual Al Adatoms Driven Epitaxy of AlGaN QWs for High‐Performance UV LEDs
Residual Al Adatoms Driven Epitaxy of AlGaN QWs for High‐Performance UV LEDs Open
AlGaN‐based ultraviolet (UV) light‐emitting diodes (LEDs) experience a notable reduction in efficiency within the 280–330 nm wavelength range, known as the “UVB gap”. Given the extensive applications of UV LEDs in this wavelength range, it…
View article: High-efficiency small-pixel-size InGaN green micro-LED arrays using ion implantation pixelization
High-efficiency small-pixel-size InGaN green micro-LED arrays using ion implantation pixelization Open
Micro-LEDs, especially small-size micro-LEDs, have attracted increasing attention for high-resolution displays and high-speed visible light communications in recent years. However, the efficiency of micro-LEDs sharply decreases with decrea…
View article: Seven‐Day Versus 14‐Day Tegoprazan and Tetracycline‐Containing Quadruple Therapy for First‐Line Eradication of <scp><i>Helicobacter pylori</i></scp> Infection: A Randomized, Open‐Label, Noninferiority Trial
Seven‐Day Versus 14‐Day Tegoprazan and Tetracycline‐Containing Quadruple Therapy for First‐Line Eradication of <span><i>Helicobacter pylori</i></span> Infection: A Randomized, Open‐Label, Noninferiority Trial Open
Background and Aims Tegoprazan, a new class of drugs, is a potassium‐competitive acid blocker (P‐CAB) that inhibits gastric H+/K+‐ATPase through a different mechanism than proton pump inhibitor. Tetracycline also has anti‐ Helicobacter pyl…
View article: Effects of different types of ginseng on intercellular wireless communication networks and central carbon metabolism pathways
Effects of different types of ginseng on intercellular wireless communication networks and central carbon metabolism pathways Open
Ginseng has high medicinal value. Different ginseng have different benefits, but how they work in the body's immune metabolism is unclear. In this study, different types of ginseng were ingested and serum cytokines, some metabolite concent…
View article: Luminescence efficiency and temperature quenching of spontaneous and stimulated emission in ultra-low dislocation density InN
Luminescence efficiency and temperature quenching of spontaneous and stimulated emission in ultra-low dislocation density InN Open
In this letter, we evaluate temperature quenching of photoluminescence in ultra-high quality epitaxial InN films to assess the internal quantum efficiency (IQE) of band-to-band light emission. Measured room-temperature carrier lifetimes of…
View article: Extraction and analysis of spatial heterodyne potassium signals based on principal component analysis and non-local means method
Extraction and analysis of spatial heterodyne potassium signals based on principal component analysis and non-local means method Open
The use of flame suppressants in jet-propelled aircraft significantly reduces the infrared radiation of their exhaust plumes, thereby increasing the difficulty of target detection based on infrared radiation. Potassium salts, as a componen…
View article: Experimental Determination of Giant Polarization in Wurtzite III-Nitride Semiconductors
Experimental Determination of Giant Polarization in Wurtzite III-Nitride Semiconductors Open
Polarization engineering has revolutionized the photonic and electronic landscape of III-nitride semiconductors over the past decades. However, recent revelations of giant ferroelectric polarization in wurtzite III-nitrides challenge the l…