A5066400057- Advanced Memory and Neural Computing
- 2D Materials and Applications
- Transition Metal Oxide Nanomaterials
- MXene and MAX Phase Materials
- Graphene research and applications
- Ferroelectric and Negative Capacitance Devices
- Perovskite Materials and Applications
- Radiomics and Machine Learning in Medical Imaging
- Photoreceptor and optogenetics research
- ZnO doping and properties
- COVID-19 diagnosis using AI
- Conducting polymers and applications
- Lung Cancer Diagnosis and Treatment
- Advanced Materials and Mechanics
- Gas Sensing Nanomaterials and Sensors
- Urban Heat Island Mitigation
- Traditional Chinese Medicine Studies
- Medical Image Segmentation Techniques
- Surface Modification and Superhydrophobicity
- Advanced Sensor and Energy Harvesting Materials
- Molecular Junctions and Nanostructures
- Neuroscience and Neural Engineering
- Nanowire Synthesis and Applications
- Ga2O3 and related materials
- AI in cancer detection
State Key Laboratory of New Ceramics and Fine Processing
2020-2025
Tsinghua University
2020-2025
Fudan University
2024
Northeastern University
2023
Synaptic devices based on 2D-layered materials have emerged as high-efficiency electronic synapses and neurons for neuromorphic computing. Lateral 2D synaptic the advantages of multiple functionalities by responding to diverse stimuli, but they consume large amounts energy, far more than human brain. Moreover, current lateral employ several mechanisms conductive filaments grain boundaries (GBs), their formation is random difficult control, also hindering practical applications. Here,...
As essential units in an artificial neural network (ANN), synapses have to adapt various environments. In particular, the development of synaptic transistors that can work above 125 °C is desirable. However, it challenging due failure materials or mechanisms at high temperatures. Here, we report a transistor working hundreds degrees Celsius. It employs monolayer MoS2 as channel and Na+-diffused SiO2 ionic gate medium. A large on/off ratio 106 be achieved 350 °C, 5 orders magnitude higher...
Abstract With the development of information processing, various neuromorphic synaptic devices have been proposed, including novel mimicking multiple sensory systems in biosome, which vision is a vital source information. Due to pressing issue high energy consumption and ever‐increasing complexity practical application scenarios, there an urgent need investigate optoelectronic synapses with simple structure but multifunctional capabilities, thereby broadening their scope. Here, remarkable...
Abstract The rise of twistronics has increased the attention community to twist-angle-dependent properties two-dimensional van der Waals integrated architectures. Clarification relationship between twist angles and interlayer mechanical interactions is important in benefiting design twisted structures. However, current methods have critical limitations quantitatively probing twist-angle dependence monolayer limits. Here we report a nanoindentation-based technique shearing-boundary model...
Nanoscale electronic devices that can work in harsh environments are high demand for wearable, automotive, and aerospace electronics. Clean defect-free interfaces of vital importance building nanoscale harsh-environment-resistant devices. However, current subject to failure these environments, especially at defective electrode-channel interfaces. Here, MoS2 transistors developed by engineering with an all-transfer van der Waals electrodes. The delivered defect-free, graphene-buffered...
The large-scale growth of monolayer transition metal dichalcogenide (TMDC) films is a determinant for the implementation two-dimensional materials in industrial applications. However, simultaneous realization uniform thickness and large-area coverage still challenge, because it requires precise control reaction kinetics both space time dimensions. Herein, we achieve variety TMDCs by dual-limit (DLG) that realized through nanoporous carbon nanotube (CNT) films. In DLG, precursor-loaded CNT...
Modern optoelectronic devices trend toward greater flexibility, wearability, and multifunctionality, demanding higher standards for fabrication operation temperatures. Vanadium dioxide (VO2), with its metal–insulator transition (MIT) at 68 °C, serves as a crucial functional layer in many devices. However, VO2 usually needs to grow >450 °C an oxygen-containing atmosphere function across MIT temperature, leading low compatibility most devices, especially on flexible substrates. In this work,...
Vanadium dioxide (VO2) is a strongly correlated electronic material and has attracted significant attention due to its metal-to-insulator transition diverse smart applications. Traditional synthesis of VO2 usually requires minutes or hours global heating low oxygen partial pressure achieve thermodynamic control the valence state. Further patterning through series lithography etching processes may inevitably change surface valence, which poses great challenge for assembly micro- nanoscale...
Dynamic engineering of buckling deformation is vital importance as it provides multiphase modulation thin film devices. In particular, dynamic switch buckles between one-dimensional (1D) and two-dimensional (2D) configurations in a single system on rigid substrates intriguing but very challenging. The current approach to changing configuration mainly achieved by varying the built-in stress at film-substrate interface, difficult realize substrates. Herein, we report MoS2 films humidity-tuned...
Scaling up the chemical vapor deposition (CVD) of monolayer transition metal dichalcogenides (TMDCs) is in high demand for practical applications. However, CVD-grown TMDCs on a large scale, there are many existing factors that result their poor uniformity. In particular, gas flow, which usually leads to inhomogeneous distributions precursor concentrations, has yet be well controlled. this work, growth uniform MoS2 scale by delicate control flows precursors, realized vertically aligning...
Abstract 2D transition metal dichalcogenides (TMDCs) have been intensively explored in memristors for brain‐inspired computing. Oxidation, which is usually unavoidable and harmful TMDCs, could also be used to enhance their memristive performances. However, it still unclear how oxidation affects the resistive switching behaviors of ambipolar TMDCs. In this work, a mild strategy developed greatly ratio 2H‐MoTe 2 lateral by more than 10 times. Such an enhancement results from amplified doping...
Abstract Two‐dimensional (2D) semiconducting transition metal dichalcogenides (TMDCs) are extensively employed as channel materials in advanced electronic devices. The electrical contacts between electrodes and 2D semiconductors play a crucial role the development of high‐performance transistors. While numerous strategies for electrode interface engineering have been proposed to enhance performance n‐type transistors, upgrading p‐type ones similar manner remains challenge. In this work,...
The study of VO2 flourishes due to its rich competing phases induced by slight stoichiometry variations. However, the vague mechanism manipulation makes precise phase engineering still challenging. Here, single-crystal beams in liquid-assisted growth is systematically studied. Contrary previous experience, oxygen-rich are abnormally synthesized under a reduced oxygen concentration, revealing important function liquid V2 O5 precursor: It submerges crystals and stabilizes their stoichiometric...
Two-dimensional (2D) heterostructures have attracted widespread attention for their promising prospects in the fields of electronics and optoelectronics. However, order to truly realize 2D-material-based integrated circuits, precisely controllable fabrication 2D is crucial urgently needed. Here, we demonstrate an ex situ growth method MoSe2/MoS2 lateral by selective selenization a laser-scanned, ultrathin oxidized region (MoOx) on monolayer MoS2 matrix. In our method, scanned laser with...
Open international challenges are becoming the de facto standard for assessing computer vision and image analysis algorithms. In recent years, new methods have extended reach of pulmonary airway segmentation that is closer to limit resolution. Since EXACT'09 segmentation, limited effort has been directed quantitative comparison newly emerged algorithms driven by maturity deep learning based approaches clinical drive resolving finer details distal airways early intervention diseases. Thus...
Segmentation of complex medical images such as vascular network and pulmonary tracheal requires segmentation many tiny targets on each tomographic section the 3-D image volume. Although semantic based deep learning has made great progress, fully supervised models require a amount annotations, making difficult problem. In this article, we propose semi-supervised model for segmentation, which innovatively proposes bidirectional self-training paradigm, through dynamically exchanging roles...
Pathology computing has dramatically improved pathologists' workflow and diagnostic decision-making processes. Although computer-aided systems have shown considerable value in whole slide image (WSI) analysis, the problem of multi-classification under sample imbalance remains an intractable challenge. To address this, we propose learning fine-grained information by generating sub-bags with feature distributions similar to original WSIs. Additionally, utilize a pseudo-bag generation algorithm...
Two-dimensional (2D) semiconductors are considered one of the most promising channel materials in devices for future development integrated circuits with low power consumption and high integration. As size device gradually decreases, a key challenge is to reduce contact resistance nanoscale devices. Doping crucial strategy realize resistances 2D devices, but there still lack simple compatible doping methods. Here, we report localized that adopts an ultrathin lithium phosphorus oxynitride...
Abstract Vanadium dioxide (VO 2 ), renowned for its reversible metal‐to‐insulator transition (MIT), has been widely used in configurable photonic and electronic devices. Precisely tailoring the MIT of VO on micro‐/nano‐scale is crucial miniaturized integrated However, existing techniques like scanning probe microscopy, despite their precision, fall short efficiency adaptability, particularly complex or curved surfaces. Herein, this work achieves local engineering phase films high by...