Shanghai Institute of Microsystem and Information Technology

Enhanced electrochemically-directed oligonucleotide synthesis via porous silica thin-film for DNA data storage

DNA-based data storage has emerged as a promising alternative for long-term information archiving and its implementation accelerates the development for on-chip large scale oligonucleotide synthesis. Among various technological routes, electrochemically directed synthesis offers...

Wafer-scale low-symmetry graphene moiré superlattice for integrated quantum rectifiers

Low-symmetry materials unlock rich Berry curvature physics and anomalous transport phenomena that are forbidden in high-symmetry quantum systems through rigorous crystalline symmetry constraints. Current approaches rely on external fields or complex heterogeneous stacking to brea...

Holistic foreground–background guided feature learning for few-shot strip steel defect segmentation

Strip steel surface defect (S 3 D) segmentation has become an indispensable technique for surface inspection in strip steel production lines. However, the imbalance between the foreground and background, as well as the complex defect appearances, have become the main challenges i...

Termination-Dependent Surface States and Magnetic Fingerprints of Chiral Helimagnet Cr1/3TaS2

Abstract Chiral helimagnets based on intercalated transition-metal dichalcogenides, characterized by nanoscale spin ordering, provide a powerful route to engineer chiral spin textures (e.g., the topologically protected magnetic solitons) and explore emergent electronic functional...

Quantum noise spectroscopy of nanoscale charge defects in silicon carbide at room temperature

The nanoscale charge environment critically influences the performance of semiconductor devices, yet traditional characterization techniques usually lack the spatial resolution to resolve nanoscale charge heterogeneity and identify microscopic noise sources. Here, we address this...

Asynchronous Acoustic–Image Classification for Unattended Ground Sensors with Domain Adaptation and Bidirectional Prototype Distillation

Acoustic and image sensors in unattended ground sensor systems often operate at different sampling rates and use different trigger mechanisms and fields of view, so their observations are asynchronous and lack instance-level correspondence. In addition, web images used to supplem...

Probing picosecond depairing currents in type-II superconductors

Abstract Accessing the intrinsic critical current density in type-II superconductors can provide a means to probe microscopic superconducting properties and increase current limits in high-magnetic-field devices and electrical power systems. However, the critical current density...

Elucidating Ionic Programming Thermodynamics of Oxide‐Ion‐Based Electrochemical Random‐Access Memory Devices

ABSTRACT Electrochemical random‐access memory (ECRAM) enables analog conductance modulation by tuning the carrier concentration in the channel, making it a promising hardware platform for neuromorphic computing. Consequently, elucidating the quantitative relationship between the...

Dual‐Pathway Regulation by Diphenyl Guanidine Enhancing Sulfur Utilization in Sulfurized Polyacrylonitrile Synthesis

ABSTRACT The introduction of vulcanization accelerator (VA) can effectively reduce the amount of sulfur precursor in Sulfurized Polyacrylonitrile (SPAN) synthesis, improving sulfur utilization efficiency and thus promoting the commercial application of SPAN. Nevertheless, the mec...

Direct Nanocrystal Patterning on Suspended MEMS Microheaters for Dual‐Temperature Gas Sensing

ABSTRACT Efficient integration of metal oxide nanocrystals with microelectromechanical systems (MEMS) microheaters is essential for developing compact gas‐sensing platforms, yet conventional deposition and patterning approaches often suffer from limited pattern fidelity and poor...

Synergistic Surface/Bulk Charge Modulation Enables Record-Level Photocurrent in Hematite Photoanodes without Co-Catalysts for Photoelectrochemical Water Splitting

Abstract Hematite (α-Fe2O3) photoanodes are limited by poor bulk conductivity and severe surface recombination, which hinder their photoelectrochemical (PEC) water-splitting activity. We demonstrate that a simple, rapid microwave-sintering (RMS) route simultaneously incorporates...

Engineered Charge Separation and Utilization in Oxygen-Vacancy-Mediated S-scheme Heterojunction for Enhanced Photoredox Catalysis

Abstract Defect-mediated S-scheme heterojunction engineering offers a compelling strategy for advancing photocatalytic solar energy conversion. Herein, an S-scheme heterojunction photocatalyst is designed by coupling one-dimensional oxygen-vacancy-rich K2Ti8O17–x nanowires to two...

Boosting the Solar Water-Splitting Performance of a CuO Photocathode via Synergetic Interfacial Hole Extraction and Surface Electron Collection

Abstract P-type cupric oxide (CuO) is a promising photocathode material for solar hydrogen production, whereas its practical application is severely limited by constrained photoelectrochemical (PEC) performance and poor photostability. Herein, an integrated NiO/CuO/CuS photocatho...

Reconfigurable Terahertz Multi‐Harmonic Dual‐Combs

ABSTRACT Dual‐comb spectroscopy, constructed from two frequency combs with slightly different repetition frequencies, enables real‐time and high‐precision measurements without mechanical scanning. In the terahertz (THz) spectral range, dual‐comb techniques provide a powerful tool...

High‐Efficiency Acousto‐Optic Modulation on Non‐Suspended Thin‐Film Lithium Tantalate

ABSTRACT Acousto‐optic (AO) interactions provide a powerful interface between the microwave and optical domains, enabling optical switching, non‐reciprocal propagation, and efficient microwave‐to‐optical transduction. Here, we demonstrate high‐efficiency AO modulation on a non‐su...

A Biomimetic Binocular Visual System Based on β ‐Ga 2 O 3 Optoelectronic Synaptic Device for Motion Recognition

ABSTRACT With the rapid development of autonomous vehicles, robotics, and monitoring systems, the demand for having visual system capable of recognizing explicit motion information, such as motion direction, state, and speed, has increased substantially. To address this demand, b...

MXenes Contacts for p ‐type 2D Electronics

ABSTRACT MXenes, a family of two‐dimensional (2D) transition‐metal carbides and nitrides, offer a compelling combination of metallic conductivity and tunable surface chemistry. However, their potential as electrical contacts for p ‐type 2D semiconductors remains largely untapped....