A5046404457- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Graphene research and applications
- MXene and MAX Phase Materials
- Advanced Memory and Neural Computing
- Advanced Sensor and Energy Harvesting Materials
- Pulsed Power Technology Applications
- 2D Materials and Applications
- Advanced MEMS and NEMS Technologies
- Electromagnetic Launch and Propulsion Technology
- Conducting polymers and applications
- Electrochemical sensors and biosensors
- Photoreceptor and optogenetics research
- Antenna Design and Optimization
- Silicon Carbide Semiconductor Technologies
- Electromagnetic Simulation and Numerical Methods
- Nanopore and Nanochannel Transport Studies
- Electrostatic Discharge in Electronics
- Photonic and Optical Devices
- Microwave Engineering and Waveguides
- Advanced Nanomaterials in Catalysis
- Supercapacitor Materials and Fabrication
- Integrated Circuits and Semiconductor Failure Analysis
- Insect Pheromone Research and Control
Micro & Nano Research Institute
2021-2024
Xi'an Jiaotong University
2018-2024
China University of Petroleum, East China
2020
China XD Group (China)
2019
Metal organic frameworks (MOFs) with two dimensional (2D) nanosheets have attracted special attention for supercapacitor application due to their exceptional large surface area and high surface-to-volume atom ratios. However, electrochemical performance is greatly hindered by poor electrical conductivity. Herein, we report a 2D nanosheet nickel cobalt based MOF (NiCo-MOF)/reduced graphene oxide heterostructure as an electrode material supercapacitors. The NiCo-MOF are in situ grown on rGO...
Neuromorphic perception and computing show great promise in terms of energy efficiency data bandwidth compared to von Neumann's architecture. In-sensor allows information processing at the edge, which is highly dependent on functional fusion receptors neurons. Here, a leaky integrate-and-fire (LIF) artificial spiking sensory neuron (ASSN) based NbOx memristor an a-IGZO thin-film transistor (TFT) successfully developed. The ASSN fabricated mainly through simple sputter deposition processes,...
Gas-sensing performance of graphene-based material has been investigated widely in recent years. Polyaniline (PANI) reported as an effective method to improve ammonia gas sensors’ response. A sensor based on a composite rGO film and protic acid doped polyaniline (PA-PANI) with GO doping is this work. mainly provides NH3 adsorption sites, PA-PANI responsible for charge transfer during the gas-sensing response process. The experimental results indicate that enhanced significantly by decorating...
A delay line-type surface acoustic wave (SAW) gas sensor based on p-hexafluoroisopropanol phenyl (HFIPPH) functionalized multi-walled carbon nanotube (MWCNT) film is developed to detect organophosphorus dimethyl methylphosphonate (DMMP) vapor (a simulant of chemical nerve agent sarin). Inspired by the transfer process Cu-based graphene, a uniform and size-controllable HFIPPH-MWCNT successfully prepared SAW device via wet-etching method. For first time, we use method measuring change sensor's...
Oxygen plasma treatment has been reported as an effective way of improving the response graphene gas sensors. In this work, a sensor based on composite channel with layer pristine (G) at bottom and oxygen plasma-treated (OP-G) covering was reported. The OP-G top provided functional groups serves molecule grippers, while as-grown beneath fast carrier transport path. Thus, (OP-G/G) demonstrated significantly improved in NH₃ sensing tests compared G channel. Moreover, OP-G/G showed faster...
In this paper, a novel ammonia detection hybrid film is proposed based on graphene oxide (GO)/graphene stack, which shows excellent sensing characteristics at room temperature. It attributed to the cooperation of GO layer serving as molecular capture while conductive layer. obtained chemical vapor deposited by simple drop-casting method. The prepared GO/graphene directly transferred target substrate without any additional transfer vehicle reduce possible contamination. success depends...
In order to meet the requirements of ultra-fast real-time monitoring sarin simulator with high sensitivity and selectivity, it is great significance develop performance dimethyl methylphonate (DMMP) sensor. Herein, we proposed a DMMP sensor based on p-hexafluoroisopropanol phenyl (HFIPPH) modified self-assembled single-walled carbon nanotubes (SWCNTs) field effect transistor (FET) structure. The self-assembly method provides 4 nanometres thick micron sized SWCNT channel, selectivity DMMP....
Ethanol is a harmful volatile organic compound (VOC) for human health. Currently, zinc oxide (ZnO) one of the most popular metal semiconductors VOCs detection but suffering from lack selectivity, poor response, and slow response/recovery speeds. Herein, we successfully synthesized ZnO/Ti3C2Txnanocomposites via facile hydrothermal method, in which ZnO nanoparticles were uniformly grown on two-dimensional (2D) Ti3C2Txnanosheets. As result, showed significant improvement ethanol-sensing...
Halogenated volatile organic compounds (abbreviated as X-VOCs) are a class of hazardous gas pollutants that difficult to detect due their thermal stability, chemical inertness, and poisoning effect on sensors at high temperatures. In this work, room-temperature detection X-VOCs is achieved using surface acoustic wave (SAW) sensor coated with 1-ethyl-3-methylimidazolium bis(trifluoromethylsufonyl)imide (EMIM-TFSI)-based ionic gel film. We experimentally verify the selectivity gel-based SAW...
Volatile organic compounds (VOCs) detection in ultra-low concentrations is highly demanded industry and daily life. Ethanol one of the most encountered VOCs. Through calcining precursor metal-organic frameworks (MOFs), which are situ grown on 2D Ti 3 C 2 T x sheets, Co O 4 /Ti nanocomposites with mesoporous structure were synthesized for ethanol sensing. The results showed that sensor has an ultra-high response (190 to 50 ppm ethanol), fast response/recovery speed (50s/45s a low limit...
Electromechanical coaxial switches, generally speaking, feature low insertion loss, high isolation, and broadband performance. But the SP6T (single pole six throw) electromechanical switch does not do well in performance, because order to select multiple input signals one measurement instrument, its edge-line center conductor must be cut into wedges, which increases discontinuity of transition from line edge-line. In this paper a new design for was investigated. The can transmit all way down...
Wide-band coaxial switch is widely used for transmitting and switching signal in automatic test system instruments due to its low insertion loss, bandwidth, long life. As a kind of microwave switch, matrix has 6 RF input output terminals, which feature that any two ports can be connected each other. Thus, the central conductor edge line must cut into six wedges, resulting an increase discontinuity transition edge-line. In this paper, new design investigated, three transmission modes, so it...
High frequency coaxial switch is a necessary device of low-orbit satellite test system. Its transmission as high 53 GHz. At present, the highest single pole six throw (SP6T) in China only 40GHz. In this paper, SP6T with 54GHz designed, which has characteristics low VSWR, Insertion Loss and Isolation, can transmit microwave signals almost without loss, Using build matrix system much more conveniently. The whole structure, key design measurement results are given.