A5015653809- Advanced Sensor and Energy Harvesting Materials
- Graphene research and applications
- 2D Materials and Applications
- Conducting polymers and applications
- Advanced Materials and Mechanics
- Tactile and Sensory Interactions
- Advanced Memory and Neural Computing
- Thermal Radiation and Cooling Technologies
- Adhesion, Friction, and Surface Interactions
- Nanomaterials and Printing Technologies
- MXene and MAX Phase Materials
- Advanced Surface Polishing Techniques
- Gas Sensing Nanomaterials and Sensors
- Laser-Ablation Synthesis of Nanoparticles
- Chalcogenide Semiconductor Thin Films
- Nanowire Synthesis and Applications
- Ferroelectric and Negative Capacitance Devices
- Perovskite Materials and Applications
- Dielectric materials and actuators
- Mechanical stress and fatigue analysis
- Neuroscience and Neural Engineering
Tsinghua University
2015-2021
Institute of Microelectronics
2015-2021
National Institute of Metrology
2021
Shanghai University
2017
University Town of Shenzhen
2016
Shanghai Institute of Microsystem and Information Technology
2016
Institute of Physics
2016
Chinese Academy of Sciences
2016
Collaborative Innovation Center of Quantum Matter
2016
A mechanical sensor with graphene porous network (GPN) combined polydimethylsiloxane (PDMS) is demonstrated by the first time. Using nickel foam as template and chemically etching method, GPN can be created in PDMS-nickel coated graphene, which achieve both pressure strain sensing properties. Because of pores GPN, composite exhibit wide range highest sensitivity among foam-based sensors, respectively. In addition, it shows potential applications monitoring or even recognize walking states,...
Due to its excellent flexibility, graphene has an important application prospect in epidermal electronic sensors. However, there are drawbacks current devices, such as sensitivity, range, lamination, and artistry. In this work, we have demonstrated a multilayer skin based on laser scribing graphene, whose patterns programmable. A process been developed remove the unreduced oxide. This method makes not only transferable butterflies, human bodies, any other objects inseparably elegantly,...
Flexible pressure sensors working in a low range (<10 kPa) have become an important part of recent research due to their applications "artificial skin", foldable electronics and so on. Several efforts been focused on the high sensitivity devices with neglect linearity which is essential for real applications. Here, we present device new Gaussian random distribution contact surface profile novel piezoresistive composite principle by numerical simulation, predicts combination wide sensitivity....
In this paper, we fabricate a graphene film heater through laser reduction on oxide, which is two-step process.
Molybdenum disulfide is a promising channel material for field effect transistors (FETs). In this paper, monolayer MoS2 grown by chemical vapor deposition (CVD) was used to fabricate top-gate FETs through standard optical lithography. During the fabrication process, charged impurities and interface states are introduced, photoresist not removed cleanly, which both limit carrier mobility source-drain current. We apply SiO2 protective layer, deposited on surface of MoS2, in order avoid...
In this paper, we have developed a high-performance graphene electrothermal actuator (ETA). The fabrication method is easy, fast, environmentally friendly, and suitable for preparing both large-size miniature ETAs. When applied with the driving voltage of 65 V, ETA achieves large bending angle 270° fast response 8 s recovery process costs 19 s. deformation reversible can be precisely controlled by voltage. A simple robotic hand prepared using single hold object, which more than ten times...
With rapid development of integrated circuits, urgent requirements for a transistor with lower subthreshold swing (SS) and better contact properties are needed. To optimize the SS issues, we propose concept molybdenum disulfide (MoS2) filament two modes. We successfully fabricated proposed devices in wafer-scale. Mode I can enable device extremely low down to 2.26 mV/dec by switching between on off while mode II realize record high on/off ratio 2.6 × 109 using as quasi-zero dimensional...
In this paper, a flexible heater based on anisotropic laser-reduced graphene oxide (LRGO) is established. Attributing to precision and shape design of laser processing excellent adhesion oxide, the LRGO-based can be microminiaturized with custom patterns integrated various substrates, which what existing film heaters cannot do widely used for wearable heating devices, flexural warming systems in medical science, light deicing equipment aero vehicles. The electrothermal performance LRGO...
Due to excellent photoelectric property of single layer molybdenum disulphide (SL MoS2), different kinds photodetectors based on SL MoS2 have been reported. Although high photosensitivity was obtained, the rising and decay time photocurrent were relatively large (&gt;300 ms) when current reached up μA order. In this paper, we demonstrate a sensitive fast barrier type photodetector Pd-SL Schottky junction. The can reach 0.88 A/W at 425 nm laser. Compared with ohmic contact, our device...
Abstract Microstructures with flexible and stretchable properties display tremendous potential applications including integrated systems, wearable devices bio-sensor electronics. Hence, it is essential to develop an effective method for fabricating curvilinear flexural microstructures. Despite significant advances in 2D inorganic structures, large scale fabrication of unique 3D microstructures at a low cost remains challenging. Here, we demonstrate that the can be achieved by grayscale...
Graphene has good electrical properties, flexibility, and biocompatibility, making it an ideal material to monitor electrocardiogram (ECG) signals. However, the production cost feasibility of large-scale limit application graphene electrodes. Here, we demonstrate a roll-to-roll (R2R) method transfer grown by open-R2R chemical vapor deposition onto ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) substrate make non-disposable ECG This can produce continuous graphene/EVA/PET film...
Traditional Electroencephalography (EEG) devices are limited by large volume and traditional EEG electrodes also have low resolution, skin allergy other shortcomings. In this work, a graphene-based monitoring electronic (e-skin) is designed through flexible process, which greatly improves the convenience, motion anti-interference ability signal feature recognition ability.