Wencai Ren
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View article: Dislocation-driven growth of single-crystal metal foils with high-index facets
Dislocation-driven growth of single-crystal metal foils with high-index facets Open
Single-crystal metal foil with high-index facets is an emerging metastable platform for 2D epitaxy, catalysis and electronics. However, its controlled growth has been plagued by the lack of a selective mechanism for driving diverse high-in…
View article: Case Report: Surgical resection of ovarian teratoma in anti-NMDAR encephalitis complicated by severe pneumonia
Case Report: Surgical resection of ovarian teratoma in anti-NMDAR encephalitis complicated by severe pneumonia Open
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is one of the most recognized forms of autoimmune encephalitis. We report the case of a 25-year-old woman with ovarian teratoma-associated anti-NMDAR encephalitis complicated by sever…
View article: Direct thermal resistance measurment of a single ripplocation in graphite
Direct thermal resistance measurment of a single ripplocation in graphite Open
Lattice defects in crystalline materials play a critical role in tuning thermal transport, with their properties being highly sensitive to atomic structure. However, characterizing such structure-property relationships is hampered by the c…
View article: Intelligent self-correcting growth of uniform Bernal-stacked bi-/trilayer graphene
Intelligent self-correcting growth of uniform Bernal-stacked bi-/trilayer graphene Open
State-of-the-art synthesis strategies of two-dimensional (2D) materials have been designed following the nucleation-dominant pattern for structure control. However, this classical methodology fails to achieve the precise layer- and stackin…
View article: The 2D Materials Roadmap
The 2D Materials Roadmap Open
Over the past two decades, 2D materials have rapidly evolved into a diverse and expanding family of material platforms. Many members of this materials class have demonstrated their potential to deliver transformative impact on fundamental …
View article: Ultrafast Exciton and Spin Dynamics of Monolayer MoSi<sub>2</sub>N<sub>4</sub> Studied by Non‐Degenerate Pump‐Probe Transient Transmission Spectroscopy
Ultrafast Exciton and Spin Dynamics of Monolayer MoSi<sub>2</sub>N<sub>4</sub> Studied by Non‐Degenerate Pump‐Probe Transient Transmission Spectroscopy Open
2D materials have attracted numerous attention for their potential applications in nano‐photoelectronic and valleytronic devices. Recently, a new 2D material, MoSi 2 N 4 monolayer, is synthesized and reported, and predicted to have many un…
View article: A two-dimensional semiconductor-semimetal drag hybrid
A two-dimensional semiconductor-semimetal drag hybrid Open
Lateral charge transport of a two-dimensional (2D) electronic system can be much influenced by feeding a current into another closely spaced 2D conductor, known as the Coulomb drag phenomenon -- a powerful probe of electron-electron intera…
View article: 2D (NH4)BiI3 enables non-volatile optoelectronic memories for machine learning
2D (NH4)BiI3 enables non-volatile optoelectronic memories for machine learning Open
Machine learning is the core of artificial intelligence. Using optical signals for training and converting them into electrical signals for inference, combines the strengths of both, and thus can greatly improve machine learning efficiency…
View article: Control of water for high-yield and low-cost sustainable electrochemical synthesis of uniform monolayer graphene oxide
Control of water for high-yield and low-cost sustainable electrochemical synthesis of uniform monolayer graphene oxide Open
With the rapid development of graphene industry, low-cost sustainable synthesis of monolayer graphene oxide (GO) has become more and more important for many applications such as water desalination, thermal management, energy storage and fu…
View article: Polyimide passivation‐enabled high‐work function graphene transparent electrode for organic light‐emitting diodes with enhanced reliability
Polyimide passivation‐enabled high‐work function graphene transparent electrode for organic light‐emitting diodes with enhanced reliability Open
Chemical vapor deposition (CVD)‐gown graphene has tremendous potential as a transparent electrode for the next generation of flexible optoelectronics such as organic light‐emitting diodes (OLEDs). A semiconductor coating is critical to imp…
View article: A hot-emitter transistor based on stimulated emission of heated carriers
A hot-emitter transistor based on stimulated emission of heated carriers Open
Hot-carrier transistors are a class of devices that leverage the excess kinetic energy of carriers. Unlike regular transistors, which rely on steady-state carrier transport, hot-carrier transistors modulate carriers to high-energy states, …
View article: Discovery of natural few-layer graphene on the Moon
Discovery of natural few-layer graphene on the Moon Open
Natural few-layer graphene is unambiguously identified from the Chang'e-5 lunar soil samples, which serves as a new platform for investigating extraterrestrial bodies.
View article: Unusually high thermal conductivity in suspended monolayer MoSi2N4
Unusually high thermal conductivity in suspended monolayer MoSi2N4 Open
Two-dimensional semiconductors with high thermal conductivity and charge carrier mobility are of great importance for next-generation electronic and optoelectronic devices. However, constrained by the long-held Slack’s criteria, the report…
View article: Valley-dimensionality locking of superconductivity in cubic phosphides
Valley-dimensionality locking of superconductivity in cubic phosphides Open
Two-dimensional superconductivity is primarily realized in atomically thin layers through extreme exfoliation, epitaxial growth, or interfacial gating. Apart from their technical challenges, these approaches lack sufficient control over th…
View article: 2D CdPS3-based versatile superionic conductors
2D CdPS3-based versatile superionic conductors Open
Ion transport in nanochannels is crucial for applications in life science, filtration, and energy storage. However, multivalent ion transport is more difficult than the monovalent analogues due to the steric effect and stronger interaction…
View article: A corrosion-resistant RuMoNi catalyst for efficient and long-lasting seawater oxidation and anion exchange membrane electrolyzer
A corrosion-resistant RuMoNi catalyst for efficient and long-lasting seawater oxidation and anion exchange membrane electrolyzer Open
Direct seawater electrolysis is promising for sustainable hydrogen gas (H 2 ) production. However, the chloride ions in seawater lead to side reactions and corrosion, which result in a low efficiency and poor stability of the electrocataly…
View article: Defects boost graphitization for highly conductive graphene films
Defects boost graphitization for highly conductive graphene films Open
Fabricating highly crystalline macroscopic films with extraordinary electrical and thermal conductivities from graphene sheets is essential for applications in electronics, telecommunications and thermal management. High-temperature graphi…
View article: Superhigh and Robust Ion Selectivity in Membranes Assembled with Monolayer Clay Nanosheets
Superhigh and Robust Ion Selectivity in Membranes Assembled with Monolayer Clay Nanosheets Open
It is crucial to control the ion transport in membranes for various technological applications such as energy storage and conversion. The emerging functional two‐dimensional (2D) nanosheets such as graphene oxide and MXenes show great pote…
View article: Correlation between Nanoscale Domain Structures and Superconducting Phase Transitions in Highly Crystalline 2D Superconductors
Correlation between Nanoscale Domain Structures and Superconducting Phase Transitions in Highly Crystalline 2D Superconductors Open
The domains and domain boundaries in 2D materials are known to play essential roles in investigating intriguing physical properties and have potential applications in nanoscale devices. Understanding the influence of individual domains on …
View article: Two-dimensional superconducting MoSi2N4(MoN)4n homologous compounds
Two-dimensional superconducting MoSi2N4(MoN)4n homologous compounds Open
The number and stacking order of layers are two important degrees of freedom that can modulate the properties of 2D van der Waals (vdW) materials. However, the layers’ structures are essentially limited to the known layered 3D vdW material…
View article: Resonant Scattering in Proximity‐Coupled Graphene/Superconducting Mo<sub>2</sub>C Heterostructures
Resonant Scattering in Proximity‐Coupled Graphene/Superconducting Mo<sub>2</sub>C Heterostructures Open
The realization of high‐quality heterostructures or hybrids of graphene and superconductor is crucial for exploring various novel quantum phenomena and devices engineering. Here, the electronic transport on directly grown high‐quality grap…
View article: A Ta-TaS2 monolithic catalyst with robust and metallic interface for superior hydrogen evolution
A Ta-TaS2 monolithic catalyst with robust and metallic interface for superior hydrogen evolution Open
The use of highly active and robust catalysts is crucial for producing green hydrogen by water electrolysis as we strive to achieve global carbon neutrality. Noble metals like platinum are currently used in industry for the hydrogen evolut…