A5100725902- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
- Organic Electronics and Photovoltaics
- Silicon Carbide Semiconductor Technologies
- Quantum Dots Synthesis And Properties
- Ferroelectric and Negative Capacitance Devices
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Gas Sensing Nanomaterials and Sensors
- Tactile and Sensory Interactions
- Copper-based nanomaterials and applications
- ZnO doping and properties
- Nanomaterials and Printing Technologies
- Neuroscience and Neural Engineering
- Integrated Circuits and Semiconductor Failure Analysis
- Nanowire Synthesis and Applications
- Advanced Memory and Neural Computing
- Cancer-related Molecular Pathways
- Advanced Computing and Algorithms
- Quantum and electron transport phenomena
- Advanced Antenna and Metasurface Technologies
- Surface and Thin Film Phenomena
- Advanced Materials and Mechanics
Xidian University
2014-2024
Chongqing University of Posts and Telecommunications
2024
University of Aveiro
2024
Nanyang Technological University
2021-2024
Shenzhen Institute of Information Technology
2024
Harbin Institute of Technology
2024
University of Electronic Science and Technology of China
2019-2023
Forschungszentrum Jülich
2023
Changsha Central Hospital
2022
Jacksonville College
2022
Soft strain sensors are needed for a variety of applications including human motion and health monitoring, soft robotics, human/machine interactions. Capacitive-type excellent candidates practical due to their great linearity low hysteresis; however, big limitation this sensor is its inherent property sensitivity when it comes detecting various levels applied strain. This the structural properties parallel plate capacitor structure during stretching operations. According model, at best...
A thin, soft nanomesh strain gauge enables natural skin motion monitoring with minimum mechanical constraints.
On-skin electronics require conductive, porous, and stretchable materials for a stable operation with minimal invasiveness to the human body. However, porous elastic conductors that simultaneously achieve high conductivity, good stretchability, durability are rare owing lack of proper design adhesion between polymer conductive metallic networks. Here, simple fabrication approach nanomesh-type is shown by designing layer-by-layer structure nanofibers/nanowires (NFs/NWs) via interfacial...
A smart face mask that can conveniently monitor breath information is beneficial for maintaining personal health and preventing the spread of diseases. However, some challenges still need to be addressed before such devices practical use. One key challenge develop a pressure sensor easily triggered by low has excellent stability as well electrical mechanical properties. In this study, wireless designed integrating an ultrathin self-powered compact readout circuit with normal mask. The...
Metal-organic frameworks (MOFs) with well-defined porous structures and tailored functionalities have been widely used in chemical sensing. However, the integration of MOFs flexible electronic devices for wearable sensing is challenging because their low electrical conductivity fragile mechanical properties. Herein, a sweat sensor metabolite detection presented by integrating an electrically conductive Ni-MOF nanocellulose substrate. The MOF-based layered film inherent conductivity, highly...
Abstract A reliable and low‐cost solution‐processing procedure to synthesize a highly adhesive flexible metal antenna with low resistivity for radio‐frequency identification device (RFID) tags on paper substrates via inkjet printing combined surface modification electroless deposition (ELD) is demonstrated in this paper. Through the of colloidal solution hydrolyzed stannous chloride chitosan solution, paper‐based substrate able reduce penetration rate ink further increase adsorption amount...
Significance We have succeeded in fabricating a highly robust, adhesive, gas-permeable free-standing polymeric nanofilm with thickness of less than 100 nm. A dry electrode comprising and an Au layer can adhere to the human skin by van der Waals forces alone for 1 wk high-fidelity electrocardiogram recording. Our method has overcome major bottleneck continuously monitoring biosignals long period time high precision under daily life conditions, opening up new opportunities wide range...
The limited sensitivity of photovoltaic-type photodiodes makes it indispensable to use pre-amplifier circuits for effectively extracting electrical signals, especially when detecting dim light. Additionally, the photomultiplication with light amplification function suffer from potential damages caused by high power consumption under strong In this work, adopting synergy strategy thermal-induced interfacial structural traps and blocking layers, we develop a dual-mode visible-near infrared...
Sol-gel processed zinc oxide (ZnO) is one of the most widely used electron transport layers (ETLs) in inverted organic solar cells (OSCs). The high annealing temperature (≈200 °C) required for sintering to ensure a mobility however results severe damage flexible substrates. Thus, based on sol-gel ZnO exhibit significantly lower efficiency than rigid devices. In this paper, an indium-doping approach developed improve optoelectronic properties and reduce temperature. Inverted OSCs In-doped...
Abstract Mechanically durable transparent electrodes are needed in flexible optoelectronic devices to realize their long‐term stable functioning, for applications various fields such as energy, healthcare, and soft robotics. Several promising based on nanomaterials have been previously reported replace the conventional fragile indium‐tin oxide (ITO); however, obtaining feasible printed ultraflexible with a multistack structure is still great challenge. Here, ultrathin (uniform thickness of...
Flexible organic photovoltaics (OPVs) are promising power sources for wearable electronics. However, it is challenging to simultaneously achieve high efficiency as well good stability under various stresses. Herein, we demonstrate the fabrication of highly efficient (efficiency, 13.2%) and stable OPVs based on nonfullerene blends by a single-step postannealing treatment. The device performance decreases dramatically after annealing at 90 °C fully recovered 150 °C. Glass-encapsulated annealed...
Polypyrrole (PPy) is a good candidate material for piezoresistive pressure sensors owing to its excellent electrical conductivity and biocompatibility. However, it remains challenging fabricate PPy-based flexible with high sensitivity because of the intrinsic rigidity brittleness film composed dense PPy particles. Here, rational structure, that is, 3D-conductive elastic topological coaxial nanofiber networks, reported dramatically improve sensors. The prepared through surface modification...
Abstract Flexible and stretchable organic photovoltaics (OPVs) are promising as a power source for wearable devices with multifunctions ranging from sensing to locomotion. Achieving mechanical robustness high conversion efficiency ultraflexible OPVs is essential their successful application. However, it challenging simultaneously achieve these features by the difficulty maintain stable performance under microscale bending radius. Ultraflexible proposed employing novel metal‐oxide‐free...
This study investigates a low-loss and flexible terahertz frequency selective surface (FSS) based on cyclic olefin copolymer (COC) film substrate, which is fabricated via simple temperature-control method without the use of solvent. The measured response proof-of-concept COC-based THz bandpass FSS matches well with numerical results. Due to ultra-low COC dielectric dissipation factor (order 0.0001) in band, passband insertion loss at 559 GHz reaches 1.22 dB, much better than that previously...
Polyvinylidene fluoride (PVDF) films possess multifunctional ability for piezo/pyro/ferroelectronic applications. One critical challenge of the traditional techniques is complicated fabrication process obtaining poled films. In this work, PVDF film facilely prepared by solution cast on hydrophilically treated substrates. The obtained exhibit fairly good pyroelectricity comparable to those fabricated thermal poling, indicating self-polarized. This result attributed hydrogen-bonding-induced...
Transient conductors are one of the most important components in transient electronics, which attract great attention because their environment-friendly and biocompatible characters. To meet requirement for wearable good stretchability mechanical durability needed conductors. However, it remains challenging to achieve behavior simultaneously a lack proper elastomer. Herein, we demonstrate first highly stretchable conductor from composite material Ag flakes gelatin hydrogel. It shows maximum...
Abstract Flexible organic photodetectors can form seamless contact with human skin, enabling continuous health monitoring. However, developing flexible high detectivity remains challenging because of the theoretical dark current using a bulk heterojunction (BHJ) structure. Herein, simple approach is reported that integrates field‐effect transistor (FET) and an photodiode (OPD) module on same substrate to achieve ultralow density (3.0 × 10 −8 mA cm −2 ), ultrahigh (1.7 15 Jones), excellent...
Abstract Visible‐to‐near‐infrared organic photodetectors (vis–NIR OPDs) are highly desired due to their potential applications in both scientific research and industry. To develop state‐of‐the‐art diode‐type OPDs, general strategies aiming reduce the dark current density ( J d ) involve reducing thickness of bulk‐heterojunction (BHJ) active layer, but this simultaneously leads a sharp drop photoresponse. Herein, facile fabrication strategy, i.e., thermally induced anti‐aggregation (TIAA)...
The designed flexible lead-free Cs 3 Cu 2 X 5 (X = Cl, Br, I) nanocrystal perovskite photodetectors demonstrate excellent properties, including high photoresponses, strong photoselectivity and bending stability at different irradiation wavelengths.