770results about How to "Increase the electric field strength" patented technology

The present invention relates to a capacitive-coupled plasma processing apparatus, wherein an electric field regulating element, i.e., an “electric field lens”, is arranged in the reaction chamber to generate a regenerated electric field in a direction opposite to that of the original radio frequency electric field in the reaction chamber, so that the non-uniformity of etching rate on the surface of the substrate of the plasma incurred by the original radio frequency electric field is decreased; and the electric field regulating element, i.e., the “electric field lens”, further decreases the equivalent quality factor Q value of the reaction chamber, expands the radio frequency band, and prevents high-voltage electric arcing. The present invention further provides a method for processing the substrate using the processing apparatus.

A wireless electric field power transmission system comprises: a transmitter comprising a transmitter antenna, the transmitter antenna comprising at least two conductors defining a volume therebetween; and at least one receiver, wherein the transmitter antenna transfers power wirelessly via electric field coupling when the at least one receiver is within the volume.

Organic photosensitive optoelectronic devices (“OPODs”) are disclosed which include an exciton blocking layer to enhance device efficiency. Single heterostructure, stacked and wave-guide type embodiments are disclosed. Photodetector OPODs having multilayer structures and an exciton blocking layer are also disclosed. Guidelines for selection of exciton blocking layers are provided.

The invention discloses a quantum dot light emitting diode and a manufacturing method thereof. The quantum dot light emitting diode comprises a substrate, a cathode, an electron transport layer, a quantum dot light emitting layer, a hole transport layer, and an anode stacked in sequence. The quantum dot light emitting diode is characterized in that the upper surface of the electron transport layer is provided with a nano convex-concave structure which is in quasi-periodic or aperiodic shape, and refractive index of the nano convex-concave structure shows gradient changes along an emergent light direction. Efficiency of an inverted structure quantum dot light emitting diode is obviously improved, and the efficiency is far ahead efficiency of other inverted quantum dot devices.

The invention discloses a production device for a curtain solid pin electrode nano fiber, which mainly includes a liquid storage tank, a curtain solid pin electrode thread ejector, a receiving device and a high-voltage electrostatic generator, wherein the curtain solid pin electrode thread ejector is characterized by consisting of a metal curtain, a solid pin electrode and a rotating roller; the breadth of the curtain pin electrode thread ejector ranges from 20 to 200cm, and the pin density of the solid pin electrode is 1 to 16/cm2; the solid pin electrode is characterized in that the pin structure is either forked, cylindrical, conical or pyramidal; the solid pin electrode (22) is characterized in that the pin length ranges from 1 to 4cm, the pin tip dipping length ranges from 0.2 to 1mm. The industrial production device is sufficient for the production of the spinning solution electrospun nano fiber with the density amounting to more than 25%, the critical voltage thereof is generally no higher than 25kV, the production efficiency is higher than 50g/min, the diameter of the prepared nano fiber ranges from 50 to 500nm, and the uniform diameter is smaller than 400nm.

A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.

Methods and apparatus for the micro-scale, dielectrophoretic separation of particles are provided. Fluid suspensions of particles are sorted and separated by dielectrophoretic separation chambers that have at least two consecutive, electrically coupled planar electrodes separated by a gap in a fluid flow channel. The gap distance as well as applied potential can be used to control the dielectrophoretic forces generated. Using consecutive, electrically coupled electrodes rather than electrically coupled opposing electrodes facilitates higher flow volumes and rates. The methods and apparatus can be used, for example, to sort living, damaged, diseased, and/or dead cells and functionalized or ligand-bound polymer beads for subsequent identification and/or analysis.

A dielectric ceramic that forms dielectric ceramic layers of a multilayer ceramic capacitor contains a Ba and Ti containing perovskite compound, Ca, R (R denotes a rare earth element, such as La), M (M denotes Mn or the like), and Si. The Ca content ranges from 0.5 to 2.5 molar parts, the R content ranges from 0.5 to 4 molar parts, the M content ranges from 0.5 to 2 molar parts, and the Si content ranges from 1 to 4 molar parts, based on 100 molar parts of Ti. In perovskite crystal grains, the Ca diffusion depth is 10% or less of the average grain size of the crystal grains, and the Ca concentration in a Ca diffusion region is 0.2 to 5 molar parts higher than the Ca concentration near the center of each of the crystal grains.

The invention discloses a luminescent display with bilateral ring flat concave angle spine and cathode combination slope surface gate controlled structure. The display comprises a vacuum chamber formed by an upper flat glass sealing plate, a lower flat glass sealing plate and a transparent glass frame, an anode film connection layer on the upper flat glass sealing plate, a phosphor layer formed on the anode film connection layer and an anode silver outer conductive layer connected with the anode film connection layer, a bilateral ring flat concave angle spine and cathode combination slope surface gate controlled structure on the lower flat glass sealing plate as well as a getter in the vacuum chamber and isolation insulation wall attached components. The luminescent display of the invention has the advantages of being manufactured at low production cost and through simple production process while achieving high brightness.

The invention discloses an efficient multi-field-coordination fine particulate matter removal device and an efficient multi-field-coordination fine particulate matter removal method. The device comprises an outer field coagulation area, a direct current dust pre-collecting area, a pulse charge coagulation area and a direct current dust collecting area which are connected in sequence, wherein water steam and a chemical agglomeration agent are introduced from a nozzle of the outer field coagulation area respectively; the direct current dust pre-collecting area and the direct current dust collecting area are arranged in a line-plate type symmetric structure, a line electrode applies negative direct current high voltage, and a plate electrode is grounded and adopts layout of a water film electrode; the pulse charge coagulation area is arranged in the line-plate type symmetric structure, the line electrode applies positive pulse high voltage, and the plate electrode is grounded and adopts layout of the water film electrode. The device and the method aim at mineral particulate matters discharged by a fixed source; aerosol particulate matters, particularly fine particulate matters, can be subjected to efficient coagulation removal in a structural form of double coagulation areas and double dust collecting areas by using a multi-field-coordination method combined by a phase-change coagulation growth technology, a chemical agglomeration and flocculation mechanism and an electric coagulation technology, so that the phenomena of back corona, re-entrainment of dust, ash deposition and corrosion of the plate electrode are effectively avoided.

A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

An electrooptic device (2), and the methods for manufacturing, including a liquid crystal material (12) disposed between electroded flat glass or polymer substrates (4, 20) which have been precoated with a e.g. a chiral smectic surface layer (10, 14) in such way that the surface layer is able to mediate switching of the liquid crystal (12) between different optical states. The chiral smectic surface layer can be a polymer, oligomer or monomer liquid crystal with paraelectric, ferroelectric, ferrielectric or antiferroelectric response, which is insoluble in the liquid crystal used for the bulk (12) between the electroded substrates (4, 20). the switchable surface director enforces a certain orientation of the optic axis in the bulk liquid crystal (12), which can be a conventional non-chiral or chiral nematic or smectic in a twisted or non-twisted configuration.

The invention provides a high module carbon fiber and a fabrication method thereof. The high module carbon fiber includes the product fabricated by the following steps: subjecting a pre-oxidized carbon fiber to a microwave assisted graphitization process, wherein the pre-oxidized carbon fiber is heated to a graphitization temperature of 1000-3000° C. for 1-30 min. Further, the high module carbon fiber has a tensile strength of between 2.0-6.5 GPa and a module of between 200-650 GPa.

The invention provides methods for sharpening the tip of an electrical conductor. The methods of the invention are capable of producing tips with an apex radius of curvature less than 2 nm. The methods of the invention are based on simultaneous direction of ionized atoms towards the apex of a previously sharpened conducting tip and application of an electric potential difference to the tip. The sign of the charge on the ions is the same as the sign of the electric potential. The methods of the invention can be used to sharpen metal wires, metal wires tipped with conductive coatings, multi-walled carbon nanotubes, semiconducting nanowires, and semiconductors in other forms.

An electroosmotic pump comprises a plurality of membranes comprising one or more positive electroosmotic membranes and one or more negative electroosmotic membranes, a plurality of electrodes comprising cathodes and anodes, and a power source. Each of the positive electroosmotic membranes and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on other side of the membrane. At least one of the cathodes or anodes is disposed between a positive electroosmotic membrane and negative electroosmotic membrane.

The invention discloses a surface-enhanced Raman spectroscopy substrate and a preparation method thereof. The surface-enhanced Raman spectroscopy substrate comprises a conducting substrate, a two-dimensional noble metal micro-nano structure array and gold nanostars, wherein each array unit is a starlike noble metal film unit; the size of each starlike noble metal film unit is 150-1000 nm; the distance between every two adjacent starlike noble metal film units is 10-500 nm; the gold nanostars are deposited at tips of all the starlike noble metal film units in the two-dimensional noble metal micro-nano structure array through electrophoresis; the deposition position of each gold nanostar is 1-5 nm away from the tips of the corresponding starlike noble metal film unit. On one hand, the own electric fields of gold nanostar particles are enhanced; on the other hand, the tips of all the starlike noble metal film units in the two-dimensional noble metal micro-nano structure array are further coupled with those of the gold nanostar particles. Therefore, the electric field strength in a nearby area is greatly improved, and the high-sensitivity surface-enhanced Raman spectroscopy substrate is obtained.

Low-temperature plasma catalyst, and a preparation method and application thereof belong to the field of catalytic chemistry. The low-temperature plasma catalyst is formed by loading nano-scale mixture of barium titanate and titanium dioxide on the surfaces of Al2O3 particles. Mass ratio of the barium titanate and the titanium dioxide is 2:1-1:2. The preparation method includes: sequentially using nitric acid solution, NaOH solution and water to pretreat Al2O3 particulate carrier and drying; mixing nano-scale BaTiO3 and TiO2 powder according to the mass ratio of 2:1-1:2 and grinding, and dispersing the mixture to mixture of epoxy resin, firming agent and absolute ethyl alcohol to form emulsion; dispersing the treated Al2O3 particles into the emulsion, and allowing both resin and the powder mixture to adhere to the surfaces of the particles form adhesive layers; and pulling out the loaded Al2O3 particles, and naturally drying the particles in air. The low-temperature plasma catalyst enables removal rate of organic pollutant to be increased and power consumption to be lowered.

The invention discloses a high-dust holding capacity and high-efficiency composite electrostatic air purification device, which sequentially comprises a primary filtering screen, a carbon brush charge region, an electrostatic dust removal region, an air filter and a dust hopper, wherein a differential pressure transducer is arranged at the two ends of the air filter; a material level sensor is arranged in the dust hopper. According to the composite electrostatic air purification device, charged particles are collected by the electrostatic dust removal region, so that the air filter is protected, and the service life of the air filter is prolonged; the dust holding capacity of the air filter is reduced, pressure drop is reduced, and labor is saved; the exposure time of air, dust and particles on the air filter is reduced, and secondary pollution to the air caused by gas pollutants and bacterial viruses in a particle filtering process is reduced; the filtering efficiency of the electrostatic dust removal region is insensitive to blast volume changes, and the influence of proper increase of the blast volume to the overall dust removal efficiency of the device is limited, so that the purification device is suitable for blast volume variable buildings.

The invention provides a Raman base which comprises a Raman base substrate, a metal layer arranged on the Raman base substrate, and a graphene film arranged on the metal layer. According to the Raman base, the graphene film is compounded with the metal layer, and the graphene film has an atomic-scale thickness, and is capable of effectively enhancing the strength of an electric field and amplifying a Raman signal, so that when the Raman base provided by the invention is used for Raman detection, the sensitivity, the uniformity and the reliability of the Raman detection are preferable. Experiment results indicate that the Raman base provided by the invention is used for Raman detection, an object to be detected with a mol concentration of 10<-4> mol/L-10<-9> mol/L is detected, the detected spatial discrimination Raman diagram color of the object to be detected is uniform, and the detected Raman spectrum is displayed to be consistent with a Raman signal.