Junjie Qi
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View article: Nanocellulose‐Induced “Surface‐Lock” Engineering: Curbing the Dissolution of MnO <sub>2</sub> for High‐Performance Zn–MnO <sub>2</sub> Flexible Electrodes
Nanocellulose‐Induced “Surface‐Lock” Engineering: Curbing the Dissolution of MnO <sub>2</sub> for High‐Performance Zn–MnO <sub>2</sub> Flexible Electrodes Open
Carbon‐based substrates in Zn–MnO 2 flexible batteries have issues of low adhesion to MnO 2 , impacting cycle stability and capacity performance. A triple‐synergistic strategy integrating C–O–Mn covalent bonding, wettability optimization, …
View article: Natural biomass hydrogels for intelligent sensing: From component crosslinking engineering to stimuli-responsive mechanisms
Natural biomass hydrogels for intelligent sensing: From component crosslinking engineering to stimuli-responsive mechanisms Open
View article: Study on the Layered Structure of Ceramic-Side Bonding Area and the Mechanical Property of Al2O3–Kovar Brazed Joint with Ag-Cu-Ti Filler
Study on the Layered Structure of Ceramic-Side Bonding Area and the Mechanical Property of Al2O3–Kovar Brazed Joint with Ag-Cu-Ti Filler Open
During active brazing of alumina ceramics, active elements react with the ceramic to form a reaction layer, which has significant influence on the mechanical property of the brazed joint. However, the composition and formation mechanism of…
View article: scRNA-seq of Penaeus japonicus hemocytes under environmentally-induced restriction of sand-diving behavior
scRNA-seq of Penaeus japonicus hemocytes under environmentally-induced restriction of sand-diving behavior Open
Penaeus japonicus is an economically important marine shrimp species, but its sand-diving habit affects the further improvement of their culture yield. To investigate the molecular response to the restriction of sand-diving behavior, we de…
View article: All-fiber ten-mode group erbium-doped amplifier for gain equalization with high gain
All-fiber ten-mode group erbium-doped amplifier for gain equalization with high gain Open
An all-fiber ten-mode group amplifier was constructed using a few-mode erbium-doped fiber (FM-EDF) with a triple-ring-shaped core structure and self-made low-loss passive devices. This setup can effectively achieve high gain and mode gain …
View article: Real-time seamless C + L band DWDM transmission based on unified optics
Real-time seamless C + L band DWDM transmission based on unified optics Open
A real-time DWDM transmission system based on a unified C + L-band architecture is demonstrated. The system incorporates transceiver modules, wavelength-selective switches (WSS), and distributed Raman amplifiers (DRA), all compatible with …
View article: Domain Wall Engineering in Graphene-Based Josephson Junctions
Domain Wall Engineering in Graphene-Based Josephson Junctions Open
Recent progress has enabled the controlled fabrication of domain walls (DWs) in graphene, which host topological kink states. Meanwhile, reliable techniques for constructing graphene-based Josephson junctions have been established. While t…
View article: Demonstration of a bismuth-doped fiber amplifier operating in the S-band with 42 dB gain
Demonstration of a bismuth-doped fiber amplifier operating in the S-band with 42 dB gain Open
High-fluorescence bismuth-doped fiber (BDF) in the S-band (1460-1530 nm) has been fabricated by using the modified chemical vapor deposition (MCVD)-solution doping technique. The unsaturated loss (UL) and fluorescence properties of BDF are…
View article: Influence of substrate thickness on the microstructure and mechanical properties of Al–Si–Cu/Al–Cu hybrid structures additively manufactured by electron beam directed energy deposition
Influence of substrate thickness on the microstructure and mechanical properties of Al–Si–Cu/Al–Cu hybrid structures additively manufactured by electron beam directed energy deposition Open
Electron beam directed energy deposition (EB-DED) has been successfully employed to additively manufacture and repair Al–Cu alloys, however, the effects of thermal histories on the microstructure and properties have been little investigate…
View article: Differential mode-gain equalization for FM-EDFA with real-time on-demand mode pumping via spatial light modulator
Differential mode-gain equalization for FM-EDFA with real-time on-demand mode pumping via spatial light modulator Open
We demonstrate a real-time on-demand mode pumped few-mode erbium-doped fiber amplifier (FM-EDFA) with reconfigurable differential mode gain control. A 980 nm high-order mode system excitation platform based on spatial light modulator (SLM)…
View article: Single-Cell Rna Sequencing Reveals Differentially Expressed Genes Associated with Sand-Diving Behavior in the Penaeus Japonicus
Single-Cell Rna Sequencing Reveals Differentially Expressed Genes Associated with Sand-Diving Behavior in the Penaeus Japonicus Open
View article: Atomic scale study for the structural evolution of monolayer 1T′-MoS<sub>2</sub>
Atomic scale study for the structural evolution of monolayer 1T′-MoS<sub>2</sub> Open
STEM-ADF images showing the evolution of 1T′ phase.
View article: Intensive Oxidase-Like Activity of Carbon Dots Nanozymes Modulated with Phosphoric Acid for Sensing
Intensive Oxidase-Like Activity of Carbon Dots Nanozymes Modulated with Phosphoric Acid for Sensing Open
View article: Intensive Oxidase-Like Activity of Carbon Dots Nanozymes Modulated with Phosphoric Acid for Sensing
Intensive Oxidase-Like Activity of Carbon Dots Nanozymes Modulated with Phosphoric Acid for Sensing Open
View article: Study on Mitigation of Interfacial Intermetallic Compounds by Applying Alternating Magnetic Field in Laser-Directed Energy Deposition of Ti6Al4V/AA2024 Dissimilar Materials
Study on Mitigation of Interfacial Intermetallic Compounds by Applying Alternating Magnetic Field in Laser-Directed Energy Deposition of Ti6Al4V/AA2024 Dissimilar Materials Open
Brittle intermetallic compounds (IMCs) at the interface of dissimilar materials can seriously affect the mechanical properties of the dissimilar components. Introducing external assisted fields in the fabrication of dissimilar components i…
View article: Ru@UiO-66-NH2 MOFs-Based Dual Emission Ratiometric Fluorescence for Sensitive Sensing of Arginine
Ru@UiO-66-NH2 MOFs-Based Dual Emission Ratiometric Fluorescence for Sensitive Sensing of Arginine Open
Arginine has been widely applied in the food industry as coloring agents, flavoring agents, and nutritional fortifiers. It is also one of the major components of feed additives. Currently, methods for the highly selective detection of argi…
View article: Effects of conventional interweaving and secondary deposition on the microstructure and properties of Ti6Al4V/AA2024 alloy component fabricated by laser-directed energy deposition
Effects of conventional interweaving and secondary deposition on the microstructure and properties of Ti6Al4V/AA2024 alloy component fabricated by laser-directed energy deposition Open
The connection of dissimilar materials has always been a great challenge, especially titanium alloy and aluminum alloy, which have broad application prospects in the aerospace industry. In this work, the Ti6Al4V/AA2024 alloy component was …
View article: Detailed characterization of a high-gain, low differential modal gain and low gain flatness integrated FM-EDFA for multi-wavelength amplification
Detailed characterization of a high-gain, low differential modal gain and low gain flatness integrated FM-EDFA for multi-wavelength amplification Open
In this paper, an integrated few-mode erbium-doped fiber amplifier (FM-EDFA), with high gain, low differential modal gain (DMG), and low gain flatness for multi-wavelength amplification, is constructed using homemade weakly-coupled ring-co…
View article: Integration of a Cu<sub>2</sub>O/ZnO heterojunction and Ag@SiO<sub>2</sub> into a photoanode for enhanced solar water oxidation
Integration of a Cu<sub>2</sub>O/ZnO heterojunction and Ag@SiO<sub>2</sub> into a photoanode for enhanced solar water oxidation Open
A ZnO photoanode, modified with a Cu 2 O/ZnO p–n heterojunction and the plasmonic effect of Ag@SiO 2 , exhibits an 88% enhancement of photocurrent density due to the improved photogenerated carrier separation and transfer.
View article: Numerical simulation of single-particle transients in low-noise amplifiers based on silicon-germanium heterojunction bipolar transistors and inverse-mode structures
Numerical simulation of single-particle transients in low-noise amplifiers based on silicon-germanium heterojunction bipolar transistors and inverse-mode structures Open
In this work, TCAD simulation modeling is carried out for silicon-germanium heterojunction bipolar transistor (SiGe HBT), and an X-band low noise amplifier (LNA) circuit is built based on the SiGe HBT device model to carry out the hybrid s…
View article: Synthesis of Component-Controllable Monolayer Moxw(1-X)S2yse2(1-Y) Alloys with Continuously Tunable Band Gap and Carrier Type
Synthesis of Component-Controllable Monolayer Moxw(1-X)S2yse2(1-Y) Alloys with Continuously Tunable Band Gap and Carrier Type Open
View article: Synthesis of component-controllable monolayer Mo<sub><i>x</i></sub>W<sub>(1−<i>x</i>)</sub>S<sub>2<i>y</i></sub>Se<sub>2(1−<i>y</i>)</sub> alloys with continuously tunable band gap and carrier type
Synthesis of component-controllable monolayer Mo<sub><i>x</i></sub>W<sub>(1−<i>x</i>)</sub>S<sub>2<i>y</i></sub>Se<sub>2(1−<i>y</i>)</sub> alloys with continuously tunable band gap and carrier type Open
In this study, we synthesized 25 monolayer Mo x W (1− x ) S 2 y Se 2(1− y ) alloys by using a new liquid phase edge epitaxy (LPEE) growth method with high controllability.
View article: Cover Picture: Engineering inorganic lead halide perovskite deposition toward solar cells with efficiency approaching 20%
Cover Picture: Engineering inorganic lead halide perovskite deposition toward solar cells with efficiency approaching 20% Open
Inorganic perovskite materials have gained tremendous attention owing to their superior chemical and thermal stability. In article number 2021, 2, 66–83, Jin-Song Hu and co-workers report a clear roadmap to fabricate high-quality inorganic…
View article: Engineering inorganic lead halide perovskite deposition toward solar cells with efficiency approaching 20%
Engineering inorganic lead halide perovskite deposition toward solar cells with efficiency approaching 20% Open
Inorganic perovskite materials have gained tremendous attention due to their superior chemical and thermal stability than organic‐inorganic hybrid perovskites. In the past years, substantial research efforts have been devoted to developing…
View article: Recent Advances in Strain-Induced Piezoelectric and Piezoresistive Effect-Engineered 2D Semiconductors for Adaptive Electronics and Optoelectronics
Recent Advances in Strain-Induced Piezoelectric and Piezoresistive Effect-Engineered 2D Semiconductors for Adaptive Electronics and Optoelectronics Open
View article: Twisted-light-revealed Lightlike Exciton Dispersion in Monolayer MoS2
Twisted-light-revealed Lightlike Exciton Dispersion in Monolayer MoS2 Open
Twisted light carries a well-defined orbital angular momentum (OAM) per photon. The quantum number l of its OAM can be arbitrarily set, making it an excellent light source to realize high-dimensional quantum entanglement and ultra-wide ban…
View article: Stretchable and multifunctional strain sensors based on 3D graphene foams for active and adaptive tactile imaging
Stretchable and multifunctional strain sensors based on 3D graphene foams for active and adaptive tactile imaging Open
View article: Self-powered, high response and fast response speed metal–insulator–semiconductor structured photodetector based on 2D MoS<sub>2</sub>
Self-powered, high response and fast response speed metal–insulator–semiconductor structured photodetector based on 2D MoS<sub>2</sub> Open
A MIS structured self-powered photodetector of Pd/HfO2/MoS2 was fabricated by inserting a thin insulator, which has a fast response/recovery speed.
View article: 2D Materials: Layer Dependence and Light Tuning Surface Potential of 2D MoS<sub>2</sub> on Various Substrates (Small 14/2017)
2D Materials: Layer Dependence and Light Tuning Surface Potential of 2D MoS<sub>2</sub> on Various Substrates (Small 14/2017) Open
In article number 1603103, Yue Zhang and co-workers demonstrate light tuning of the surface potential of two dimensional MoS2 which is attributed to the photovoltaic effect, the produced numbers of photogenerated electrons by incident ligh…
View article: Ultra-thin, transparent and flexible tactile sensors based on graphene films with excellent anti-interference
Ultra-thin, transparent and flexible tactile sensors based on graphene films with excellent anti-interference Open
The graphene based tactile sensor features a high sensitivity and shows strong anti-interference ability to the disturbance signals.