57 results about "Polaron" patented technology

A method to electronically modulate the energy gap and band-structure of semiconducting carbon nanotubes is proposed. Results show that the energy gap of a semiconducting nanotube can be narrowed when the nanotube is placed in an electric field perpendicular to the tube axis. Such effect in turn causes changes in electrical conductivity and radiation absorption characteristics that can be used in applications such as switches, transistors, photodetectors and polaron generation. By applying electric fields across the nanotube at a number of locations, a corresponding number of quantum wells are formed adjacent to one another. Such configuration is useful for Bragg reflectors, lasers and quantum computing.

The invention discloses a berry phase metasurface-based multi-plane holographic multiplexing method, and belongs to the field of micronano optical and holographic multiplexing application. The berry phase metasurface-based multi-plane holographic multiplexing method comprises the steps of achieving phase recovery by a 3D-Fienup algorithm, taking different numerical values of reproduction positions of different images, and acquiring a computer generation holographic diagram containing all information; selecting a metal coupling polaron as a berry phase metasurface structure unit, achieving phase modulation based on a berry phase modulation principle, and enabling a polarization state to become a multiplexing path by coding a holographic phase profile conjugated with an original phase to achieve a holographic multiplexing passage selected by circular polarization; making a metasurface phase sheet for recording the computer generation holographic diagram, selecting an emergent circular polarization light orthogonal to chirality of the polarization stat, and optically reproducing a three-dimensional object or a wave surface which is recorded. The holographic multiplexing method with sub-wavelength pixel of visible light and near-infrared bands, ultrathinness, large visual angle and large capacity is provided by the invention; and moreover, the crosstalk can be effectively reduced, and the holographic multiplexing of circular polarization selectivity is achieved.

The invention relates to a polarization filtering method which is based on oblique projection and does not need to disturb polarization parameters, wherein the method comprises: determining the polarization parameters of a target signal, estimating the noise power, building a polaron space of the target signal by the polarization parameters of the target signal, calculating an oblique projector and a filter operator which are corresponding to the polaron space of the target signal and the noise power, accurately distilling the target signal by the filter operator, and filtering an interference signal. The polarization filtering method can carry out polarization filtering under the conditions of a cartesian coordinate system and an elliptic coordinate system, and can accurately distill the target signal.

The invention discloses a white-light organic electroluminescent device, which comprises a substrate, an anode layer, a cathode layer and an organic functional layer arranged between the anode layer and the cathode layer, wherein the organic functional layer comprises a luminous layer; a blue phosphorescence dye is doped in the wide band gap main body matrix with hole transmission property, and a complementary phosphorescence dye is doped in the main body matrix with electron transmission and hole blocking properties, so that the hole and electrode resonance is transmitted onto the blue phosphorescence dye molecules to directly form excitonic composite luminescence; according to the hole blocking property of the complementary phosphorescence dye main body matrix, the complementary phosphorescence dye is prevented from trapping excessive hole current carriers, the luminous strength of the blue light dye is enhanced, and annihilation of excitons and polarons in the complementary phosphorescence luminous layer is inhibited at the same time, so that uniform and stable white light emission is obtained; and relatively weak blue light emission and even total quenching in the conventional white light device are solved, and the obtained phosphorescence white light device has simple structure, is easily controlled and efficient.

This invention refers to an antenna on an echelon reflection positioning sheet applied to wireless interconnection among chips, belonging to the electronic technical field. The design theory of the antenna is rooted from Yagi aerial and just includes an excitation polaron and a reflection polaron without a positioning polaron in order to reduce the antenna area; according to the internal structure feature of the chip, the antenna is placed at the part close to the chip edge; the excitation plaron is located at a top metal layer of the chip; a plurality of reflection polaron is located at the metal layer under the top metal layer and is arranged in echelon. This invention with compact structure is able to generate the on-chip antenna ordered by different gains and direction coefficients through adjusting the arm width of each polaron, the number, length and gap of the reflection polaron; small taking area and simple structure of the antenna are easily to be achieved by adopting the standard CMOS technique.

The invention discloses a linear positioning method based on a marked magnetic source with a permanent magnetic dipole moment. The linear positioning method based on the marked magnetic source with the permanent magnetic dipole moment comprises the steps that a space magnetic field is established by means of the marked magnetic source which has the vertically upward magnetic dipole moment all the time, and the corresponding relation between the magnetic flux density distribution intensity and the distances between measurement points and the marked magnetic source is obtained; an xyz rectangular coordinate system is established, and the magnetic flux density components, at the position of each measurement point in the space magnetic field, in all the directions of the coordinates are detected, so that the magnetic flux density distribution intensity and the distances between the measurement points and the marked magnetic source are obtained; all coordinate values at the position of the marked magnetic source are obtained according to the magnetic flux density components in all the directions of the coordinates and magnetic flux density components detected through a three-axis magnetic field measurement sensor based on a marked magnetic source magnetic coupling polaron positive model, and thus accurate positioning of a marked object is achieved. According to the linear positioning method based on the marked magnetic source with the permanent magnetic dipole moment, the solution to the location parameters of the magnetic source is achieved based on the linear model; compared with a traditional magnetic marking and positioning method, the linear positioning method has the advantages that only one three-axis magnetic sensor is needed, the solution can be achieved without the need of the non-linear iteration method, rapid positioning is achieved, the precision is high, and cost is low.

The invention belongs to the field of display technologies and particularly discloses an organic electroluminescent device. The organic electroluminescent device comprises a light-emitting layer, wherein the light-emitting layer comprises an exciplex consisting of donor molecules and receptor molecules and a broad-band-gap material used for increasing the spacing between the donor molecules and the receptor molecules. Through the organic electroluminescent device, the HOMO and LUMO track overlapping degree of the formed exciplex can be lowered, singlet-triplet energy level difference is reduced, the reverse intersystem crossing rate (kRISC) of an exciplex body is increased, energy transmission to guest molecules is enhanced, and the efficiency of the device is improved; and meanwhile, by introducing the broad-band-gap material, the concentration of triplet excitons in the light-emitting layer can be effectively lowered, triplet-triplet annihilation (TTA) and triplet-polaron annihilation (TPA) are suppressed, efficiency roll-off is lowered, and the life of the device is prolonged.

A photovoltaic cell of high efficiency may be obtained using metallic nanoparticles or nanostructures as the main light absorbing element in the photosensitive layer of the cell, which absorb the light through a surface plasmon or polaron mechanism. The cell comprises at least one photosensitive layer containing nanoparticles or nanostructures each between a n-doped and a p-doped charge transport layer, characterized in that

• • the nanoparticles or nanostructures are the main light absorbing element in the photosensitive layer,
  • the nanoparticles or nanostructures have metallic conductivity and absorb near infrared, visible and/or ultraviolet light through a surface plasmon or polaron mechanism, and
  • the nanoparticles or nanostructures have at least one of their dimensions of size between 0.1 and 500 nm.

By exploiting the combination of electronic and size parameters, intense optical absorption at any wavelength within the solar spectrum (about 2500 and 300 nm) can be obtained and the whole range of the solar spectrum may be used.

Disclosed in the invention is an omnidirectional antenna comprising a base plate, a first dielectric plate, and a second dielectric plate. The first dielectric plate and the second dielectric plate are arranged in an intersected mode and are vertically arranged on the base plate. The first dielectric plate includes a plurality of first polarons working at a first frequency band and the second dielectric plate includes at least one second polaron working at a second frequency band; and the polarization direction of one of the plurality of first polarons is different from those of other first polarons. According to the invention, because two groups of antennas are distributed in an intersected and staggered mode based on the novel layout and antennas with the same frequency use different polarization modes and structures, the isolation degree of the antennas is ensured and omnidirectional coverage is realized, so that mutual influence between the antennas can be avoided and thus the wireless transmission speed is improved to the greatest extent.

A tunable plasmon resonator, comprising a plasmon resonance layer made of graphene, a crystalline group-IV-semiconductor material or a crystalline group-III-V semiconductor material, and arranged on a carrier substrate, the plasmon resonance layer having a plasmon resonance region that is exposed to a sensing volume and a tuning device that is integrated into the plasmon resonator and arranged and configured to modify a density of free charge carriers in the plasmon resonance region or to modify an effective mass amount of the free charge carriers in the plasmon resonance region by applying of a control voltage to tuning control electrode(s) of the tuning device, thereby setting a plasmon frequency of plasmon polaritons in the plasmon resonance region to a desired plasmon frequency value within a plasmon frequency tuning interval, for resonance excitation of plasmon polaritons by incident electromagnetic waves of a frequency corresponding to the set plasmon frequency value.

Disclosed in the invention is an omnidirectional antenna comprising a base plate, a first dielectric plate, and a second dielectric plate. The first dielectric plate and the second dielectric plate are arranged in an intersected mode and are vertically arranged on the base plate. The first dielectric plate includes a first polaron working at a first frequency band and at least one director; and the second dielectric plate includes a second polaron working at a second frequency band. According to the invention, because the director is arranged at the dielectric plate, the antenna radiation direction can be controlled; the coverage range can be enlarged; and the quality of the received signal can be improved. Therefore, the communication quality is enhanced and the user experience is enhanced.

The invention provides refrigeration equipment. The refrigeration equipment comprises a box body, a compressor, an evaporator, a condenser and a capillary tube. The box body comprises a shell and an inner container, and a heat preservation layer is arranged between the shell and the inner container; a sunken cavity for mounting the compressor is formed in the bottom of the box body, and the compressor is located in the sunken cavity; and the refrigeration equipment further comprises a transition tube with a uniform section. The transition tube is connected between the capillary tube and the evaporator, and the capillary tube and the transition tube are located between the sunken cavity and the inner container. The transition tube with the uniform section is adopted, and speed reduction treatment is carried out on polaron injection noise generated by high-speed refrigerants output out of an outlet of the capillary tube and injection speed, so that the overall noise level of the refrigeration equipment is obviously reduced; the transition tube is of a uniform-section structure, so that the number of welding points is reduced, and the equipment is quite suitable for mass production; and in addition, due to the fact that the capillary tube and the transition tube are arranged between the sunken cavity and the inner container, the radiation acoustic emission direction of the capillary tube is changed, and the influence of the noise of the capillary tube on a user is reduced more effectively.

An apparatus for electro-magnetic wave detection is disclosed. The apparatus comprises a two-dimensional perovskite having a polaronic emission Stokes' shifted by at least 50 nm to minimise loss due to re-absorption.

The invention belongs to the technical field of display, and specifically discloses an organic light-emitting diode. The organic light-emitting diode is provided with a first electrode, a second electrode, and an organic functional layer; the organic functional layer comprises a luminescent layer; the luminescent layer includes at least a host material and a guest material; the host material includes an exciplex composed of donor molecules and acceptor molecules; wherein the donor molecule and/or the acceptor molecule contain/contains a large steric hindrance substituent group X for increasingthe inter-molecular spacing between the donor molecule and the acceptor molecule, which can reduce the track overlap degree of HOMO and LUMO of the formed exciplex main body, reduce the singlet state-triplet state energy level difference [Delta]EST, improve the reverse intersystem crossing rate (kRISC) of the exciplex main body, enhance the energy transfer to the guest material molecules, and improve the device efficiency; meanwhile, the introduction of the large steric hindrance group can effectively reduce the triplet state concentration in the luminescent layer, inhibit the triplet state polaron annihilation (TPA), and improve the device lifetime.

An optoelectronic system can include a single walled carbon nanotube (SWNT) device. The SWNT can include a carrier-doping density with optical conditions that control trion formation that respond via optical, electrical, or magnetic stimuli. The carrier-doping density can include a hole-polaron or electron-polaron concentration.

The invention discloses a semiconductor solar battery based on an interface polaron effect and a method for preparing the semiconductor solar battery. The semiconductor solar battery has a central symmetry structure which consists of two pieces of conductive glass of the same size and a polaron oxide thin film, wherein the polaron oxide thin film is sandwiched between the two pieces of conductive glass and used for separating the two pieces of conductive glass; a conductive film is arranged on one face of each piece of conductive glass, and the face is adjacent to the polaron oxide thin film; the two pieces of conductive glass are arranged in a staggered mode; the edge of one end of each piece of conductive glass is aligned with the edge of the polaron oxide thin film, and the other end of the conductive glass is protruded on the polaron oxide thin film; the conductive films, protruded on the polaron oxide thin film, of the two pieces of conductive glass are respectively connected with a positive wire and a negative wire of a battery; and the polaron oxide thin film is prepared by grinding polaron oxide, coating the polaron oxide on the conductive glass and then performing heat treatment. A manufacturing process for the semiconductor solar battery is simple. The semiconductor solar battery is applicable to large-scale production and has the advantages of low material cost, high stability, no environmental pollution, simple manufacturing process, high elemental abundance and the like.

The invention discloses a medium nanometer light wave antenna sensor based on a rod-ring structure; a material mainly containing silicon dioxide is used as a substrate; a silicon layer of the rod-ringstructure arranged in a periodic array mode is arranged on the substrate, and for incident light with the wavelength ranging from 600 nanometers to 2500 nanometers, peaks can be obtained in transmission/reflection spectral lines. By utilizing the polaron resonance characteristics that the medium material can be polarized under irradiation of incident light and generate an internal displacement current, the change of an environment refractive index can be indirectly detected, and then water pollutants can be detected. Due to a low-loss characteristic, damage to sensing marker molecules due toa strong light heat effect can be avoided while large local field enhancement is obtained, and composition and concentration of to-be-detected protein molecules can be reversely deduced according to resonance wavelength obtained through detection through early calibration and later comparison.

The invention discloses a formula display method which comprises the steps that a layout pattern of all elements which are nested in multiple stages in a to-be-displayed formula and the position relations among the elements in each nesting stage are obtained; the to-be-displayed height and/or aligning line information of one or more sub-elements of a non-polaron element are/is called according to the layout pattern of the non-polaron element, and the to-be-displayed height and/or aligning line information of the non-polaron element is calculated; all sub-elements are arranged according to the aligning line information of all sub-elements of expression combinations, and the aligning line information of all the sub-elements is made same; formulas of the sub-elements of all expression combinations are displayed and arranged according to the position relations among the elements in each nesting stage and the to-be-displayed height of each element. Accordingly, the invention discloses a formula display device, a terminal and a computer readable storage medium. According to the formula display method and device, the terminal and the computer readable storage medium, the formulas are displayed efficiently and attractively, and the effect that the formula structures are clearly displayed to the user is realized.

The invention belongs to the technical field of metasurfaces and micro-nano photons, and particularly relates to a hyperbolic metasurface material based on a graphene-boron nitride transverse heterojunction and a preparation method and application thereof. By covering the heterostructure layer on the substrate, the periodic nano grating structure formed by arranging the plurality of strip-shaped graphene layers and the plurality of strip-shaped boron nitride layers at intervals is formed. According to the invention, the coupling of the phonon polaron in the boron nitride surface and the graphene plasmon can be realized, and a plasmon-hyperbolic phonon polaron hybrid mode with excellent properties of the two polaritons is formed. Dynamic regulation and control of a hyperbolic metasurface light field can be achieved by utilizing the property that the Fermi level of graphene is adjustable, and the hyperbolic metasurface structure is small in size, high in integration level, suitable for ultra-high-density integrated light path design and has important application value in the fields of metasurface imaging, light energy transmission devices and the like.

The invention relates to a lithium ion battery positive electrode material and a preparation method and application thereof. The positive electrode material is lithium iron phosphate, wherein the lithium iron phosphate is obtained by nonstoichiometry constituent design on LiFePO4, the structural formula of the positive electrode material is Li<1+x>Fe<1-x>PO<4>, and x is more than 0 but less than or equal to 0.1. The invention proposes a constituent design method for deviated LiFePO4 standard chemometry to improve the electrochemical property of the lithium ion battery positive electrode material, namely, the concentration of ferric iron polarons is improved by employing an appropriately excessive amount of lithium and an insufficient amount of iron and controlling lithium-iron mutual occupancy, the performance of the lithium iron phosphate (LiFePO4) is further improved, the obtained positive electrode material is high in purity, nanometer particles are assembled to form a micrometer structure, and the positive electrode material is high in tap density and has excellent conductivity and electrochemical performance. The lithium iron phosphate positive electrode material is prepared by a sol-gel method, the lithium ion battery positive electrode material is simple in process and relatively low in cost, and mass preparation and production are facilitated.