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All-carbon-nanotube thin-film transistors (ACNT-TFTs) are proposed and fabricated on a transparent glass substrate by a facile solution-processed method, with 95% enriched semiconducting single-walled carbon nanotubes (SWCNTs) serving as channel materials and mixed SWCNTs as source/drain/gate electrodes. The device demonstrates excellent electronic properties with an on/off current ratio over 105,...
A concept of tuning the on-current for p-type carbon nanotube thin film transistors (CNT TFTs) by SiO2 passivation layer has been proposed, which meets the different current density requirement for macroelectronic applications. The adsorbed oxygen molecules shift the fermi level down towards valence band, which decreases the barrier height between CNTs and electrodes for holes, so that an as-made...
The superb advantages of carbon nanotubes (CNTs) cannot be exhibited completely by devices using random CNT networks as channel materials due to the large tube-to-tube contact resistance. Traditional Langmuir-Blodgett (LB) method with direct compression and dipping has little performance improvement for films due to defects of CNT orientation. Here an improved LB method with gradually increased surface...
This work presents a self-powered liquid flow and bubble detection sensor based on the effect of contact-electrification between liquid and solid interface. Charge is driven by the electrostatic induction to flow across outer load without power supply. Single-step fluorocarbon plasma treated PDMS with wrinkle pattern is employed to contact with liquid, which could enhance the electric performance...
There are many types of liquid level measurement instrumentations in modern technology, including the multiple-liquid level measurement. However, there are some practical considerations that make them unfit to use in car washer tanks. They are often too expensive, too cumbersome, too awkward and unsuitable in tanks. Only a few of them are suitable enough for the technology to widely benefit their...
Fully transparent solution-processed carbon nanotube thin film transistors (CNT-TFTs) on flexible substrate are proposed and fabricated by a facile and low-cost process. By using 95%-semiconducting enriched carbon nanotubes as channel and transparent indium tin oxide as gate, source and drain electrodes, CNT-TFTs with a high on/off current ratio of 2.68×106, a low threshold voltage of 0.38 V, a steep...
Currently, Cars do not have any instruments to measure the water levels in the washer tank of the cars. The high number of accidents relating to the uncleanness of the windscreen continued; In order to ensure the cleanness of the car windscreen, the washer tank which is used for storing the washing water must not be empty. The measurement of liquid level helped to remind drivers. Examples of liquid...
Ruthenium dioxide (RuO2) thin films can be used as the electrode material for future technology nodes. In this work, atomic layer deposition (ALD) was used to deposit thin films of RuO2 on SiO2 using bis-(ethylcyclopentadienyl)-ruthenium [Ru(EtCp)2] as the precursor and oxygen (O2) plasma as the reducing agent. The thermal stability of the deposited films were investigated in the N2 ambient and in...
Objectives: To investigate the Immobile behavior evoked by dorsolateral Periaqueductal gray (dlPAG) stimulation and its application in animal-robotics. Methods: Adult Sprague Dawley rats were chronically implanted Stimulating electrodes in both sides of medial forebrain bundle (MFB), whisker barrel fields of left and right somatosensory cortices (SI) and dlPAG area. Consisted in holding constant amplitude...
A novel templateless electrochemical deposition method for controllable assembly of Au nanowire in micro/nano structure was proposed. This method could assemble various nano-patterns (individual, array, network etc.) by utilizing different parameters and characterizes simple-apparatus, low-cost and innoxious-electrolyte. The characterization results prove the fabricated Au nanowires were single-crystal...
The object of this study is to develop a reliable and fast visual inspection system for surface mounted components after they have been placed in wet solder paste on a printed circuit board (PCB). In order to reach this goal, firstly, the features of the components under three colors (red, greed, blue) structure light source are analyzed. Then, a two-stages inspection process is presented. In the...
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