Yichen Cai

Wearable Flexible Sensors for Cardiovascular Disease Monitoring

Xinyu Xie, Xinyu Qu, Bowen Zhou, Bocong Zhang et autres

Wearable flexible sensors have emerged as a cornerstone of next-generation bioelectronics, enabling skin-conformal, continuous, and high-fidelity monitoring of cardiovascular diseases (CVDs). This review elucidates the structure-function relationships that govern sensing performance, highlighting how material innovation, structure engineering, and device architectures synergistically balance …

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Scalable transition metal dichalcogenide memtransistor arrays with Schottky-barrier control for energy-efficient artificial neural networks

Xiangyu Hou, Wei Zhang, Sisheng Duan, Tengyu Jin et autres

Memtransistors that integrate memristor and transistor functionalities are promising candidates for scalable, energy-efficient neuromorphic computing. However, achieving high performance in memtransistor arrays—particularly in terms of resistive switching ratio, uniformity, and scalability—remains a significant challenge for practical deployment in artificial neural networks. Here, …

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Multi-Focus Imaging and U-Net Segmentation for Mesoscale Asphalt Film Structure Analysis—Method for Characterizing Asphalt Film Structures in RAP

Wang Ying, Shuming Li, Yichen Cai, Hongchao Zhang

This study presents a high-fidelity image acquisition method for asphalt film structure to address the challenge of capturing mesoscale structures, especially fine mineral filler and asphalt mastic. The method is particularly applied to the analysis of the mortar structure in reclaimed asphalt …

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Anomalous CuCrP 2 S 6 / WSe 2 interface enabled two‐dimensional programmable homojunction for self‐powered photodetection and complex optoelectronic logics

Tengyu Jin, Xiangyu Hou, Shu Shi, Jingyu Mao et autres

Abstract Ferroelectric materials hold great potential for modulating two‐dimensional (2D) materials to achieve electrically tunable homojunction (ETH). However, ETH based on conventional ferroelectrics encounters significant challenges attributed to the surface with dangling bonds and the associated depolarization field. Here, we introduce a …

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Rosebud-like VS2 with Characteristic Morphology and Rich Defects as an Efficient Catalytic Cathode for Lithium–Oxygen Batteries

Xinghua Sun, Yichen Cai

The morphology and catalytic active sites are critical determinants of the catalytic activity of the catalytic electrode, subsequently influencing the electrochemical performances of lithium–oxygen batteries. In this study, rosebud-like VS 2 with a three-dimensional open-structured architecture grown on carbon cloth was fabricated …

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Engineering grain boundaries in monolayer molybdenum disulfide for efficient water-ion separation

Jie Shen, Areej A. Aljarb, Yichen Cai, Xing Liu et autres

Two-dimensional (2D) materials have long been considered as ideal platforms for developing separation membranes. However, it is difficult to generate uniform subnanometer pores over large areas on 2D materials. We report that the well-defined eight-membered ring (8-MR) pores, typically formed at the …

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In-Plane Polarization-Triggered WS2-Ferroelectric Heterostructured Synaptic Devices

Xinxia Qiu, Shuwen Shen, Xiaofei Yue, Shoukun Qin et autres

To date, various kinds of memristors have been proposed as artificial neurons and synapses for neuromorphic computing to overcome the so-called von Neumann bottleneck in conventional computing architectures. However, related working principles are mostly ascribed to randomly distributed conductive filaments or traps, …

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An efficient and sustainable catalytic electrode of lithium-air batteries derived from natural wood

Jiajie Li, Yichen Cai, Xinghua Sun

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MXene-Fiber Composite Membranes for Permeable and Biocompatible Skin-Interfaced Iontronic Mechanosensing

Yichen Cai, Jie Shen, Nan Yang, Zhuo Chen et autres

Abstract Artificial ionic sensory systems, bridging the divide between biological systems and electronics, mimic human skin functions but face critical challenges with biocompatibility, comfort, signal stability, and simplifying packaging. Here, we present a simple and permeable skin-interfaced iontronic mechanosensing (SIIM) architecture that …

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Enhancing vertically stacked skin display compactness via discrete layer preparation

Yichen Cai, Xiangyu Hou, Wei Chen

The discrete preparation of functional layers followed by lamination for all-organic active-matrix organic light-emitting diodes enables an ultrahigh aperture ratio and reliable conformability, promising significant potential for next-generation skin-like displays.

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Sensing fugitive hydrogen emissions

Yichen Cai, Sudipta Chatterjee, Khaled N. Salama, Lain‐Jong Li et autres

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An Efficient and Sustainable Catalytic Electrode of Lithium-Air Batteries Derived from Natural Wood

Jiajie Li, Yichen Cai, Xinghua Sun

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