16 results about "Photoelectric effect" patented technology

The application discloses a crude oil water content analysis method and device. The method comprises the following steps: obtaining low, medium and high energy level light quantum detection data of a penetrating crude oil sample; calculating photoelectric effect cross section coefficients of low and medium energy levels, simultaneously solving oil, gas and water phase fractions and calculating a first mixed density; combining Compton reaction cross section coefficient of high energy level data to calculate a second mixed density; comparing the deviation of the two mixed densities, if the deviation is greater than a preset threshold, the detection time is automatically extended for re-measurement; if the deviation is still greater than the preset threshold, it is determined that the sample is in a gas-containing or non-full-liquid state, the high energy level calculation result is actively removed, and only the low and medium energy level data are used to solve the phase fraction and normalized output the final water content. The application innovatively introduces a density deviation check and a dynamic delay mechanism, effectively distinguishes and separates the gas phase interference, and realizes non-contact and high-precision automatic water content detection.

This application provides a semiconductor structure, its manufacturing method, and an image sensor. The semiconductor structure includes: a substrate; an isolation structure formed on the surface of the substrate; the isolation structure includes an interlayer isolation structure and a regional isolation structure; a photoelectric functional layer disposed on the substrate; the photoelectric functional layer is used to realize photoelectric signal conversion based on the photoelectric effect; the photoelectric functional layer includes multiple photosensitive layers stacked at intervals along the normal direction of the substrate; the doping type of the photosensitive layer is opposite to that of the isolation structure; wherein, the regional isolation structure penetrates the photoelectric functional layer along the normal direction of the substrate, dividing the photoelectric functional layer into multiple photosensitive regions; the interlayer isolation structure is disposed between the photoelectric functional layer and the substrate, and between adjacent photosensitive layers. Through this application embodiment, the diffusion of photogenerated carriers between the photosensitive regions is reduced by utilizing the interlayer isolation structure and the regional isolation structure, thereby improving the imaging quality of the image sensor.

The application discloses a kind of SiNSs@Cu@PANi nanosphere structure composite material and preparation method thereof, the composite material is the nanosphere of particle size in 50~200 nm, the nanosphere is by polyaniline coating layer and copper nanoparticle modified nanoscale silicon ball wrapped in coating layer constitute.The method is using the photoelectric effect of semiconductor silicon simultaneously realizes the load of copper nanoparticle and the coating of polyaniline coating layer.Semiconductor silicon is excited to generate photoelectric effect in material synthesis process, excitation photo-generated hole and photo-generated electron separation.Photo-generated hole will oxidize aniline monomer adsorbed to the surface of nanosilicon ball, and in-situ polymerization of aniline monomer on the surface of nanoscale silicon ball is initiated, to realize in-situ coating of polyaniline coating for nanosilicon ball;Photo-generated electron promotes copper ion metal-assisted chemical etching reaction on silicon, and enhances the combination of copper nanoparticle and nanosilicon ball.The application has the advantages of simple method, environment-friendly, etc., and wide application prospect.

This application provides a display panel and a display device. The display panel includes an array substrate; a light-emitting layer disposed on one side of the array substrate in a first direction; the light-emitting layer includes a plurality of display pixels and a plurality of interference pixels arranged at intervals, the interference pixels being used to generate emitted light of a set color; and a light-filtering layer disposed on the side of the light-emitting layer opposite to the array substrate, the light-filtering layer including a first light-absorbing portion capable of absorbing photons to generate a photoelectric effect, the first light-absorbing portion covering the light-emitting side of the interference pixels in the first direction. The display panel provided by this application has both power generation and privacy protection functions.

The utility model discloses a kind of high-speed compensation adjusting device of laser energy. Including laser generator, P light power regulation module, beam splitter, laser energy detection module;The output light path of the laser generator is sequentially provided with P light power regulation module, beam splitter;The P light power regulation module is used to adjust the power proportion of laser beam P light;The beam splitter is used to divide laser beam into fixed proportion main laser beam and auxiliary laser beam;Main laser beam is located on the output light path of laser generator, and auxiliary laser beam is located on detection light path;The laser energy detection module is arranged on detection light path, and the laser energy detection module is connected with P light power regulation module communication;The laser energy detection module is used to measure the real-time energy of auxiliary laser beam, and according to measurement data control P light power regulation module real-time adjustment laser beam P light energy proportion.The utility model carries out real-time compensation to laser beam energy, guarantees the stability of laser beam energy.Adopt photoelectric effect to convert the intensity signal of light into electric signal, real-time detection laser beam energy intensity, improve detection accuracy.

The application relates to the technical field of electrochemical testing, and particularly provides an in-situ testing method and system for photoelectric effect of a semiconductor film, the method comprising the following steps: testing the open circuit potential of a working electrode with a deposited semiconductor film in a solution in a dark state; then adopting a three-electrode system, adjusting an electrochemical workstation to be in a constant potential mode, setting a constant potential parameter as the open circuit potential measured in the dark state; intermittently opening and closing light, the electrochemical workstation outputting zero current when the light is closed, the electrochemical workstation outputting current equal in size and opposite in direction to the photoresponsive current of the semiconductor film when the light is opened; obtaining a current-time curve of the working electrode of the semiconductor film; and evaluating the photoelectric performance of the semiconductor film. The application tests the in-situ photo-induced current of the working electrode with the deposited semiconductor film in the electrolyte, retains the characteristics of the semiconductor film in the real application state, and can be applied to the fields of photocatalysis, solar cell performance testing and the like.

The imaging system includes a light source configured to emit radiation onto a biological sample, the light source being optimized for high-speed imaging of the biological sample using the photoelectric effect. The system also includes a sample holder configured to hold the biological sample in place during imaging. The system also includes a stage assembly to which the sample holder is mounted, the stage assembly moving the biological sample during imaging. The system further includes a detector configured to receive electrons emitted from the biological sample in response to radiation from the light source.

A fingertip pulse condition qualitative positioning analysis method, which is based on the photoelectric effect pulse information of the fingertips of the index finger, middle finger and ring finger of the left hand and / or the right hand, and the fingertip pulse conditions of the index finger, middle finger and ring finger correspond to the three parts of the wrist pulse condition analysis three-part nine-omen theory, namely, the Cunkou, Guankou and Chikou, and the fingertip pulse conditions are simultaneously subjected to qualitative and positioning analysis, wherein the qualitative refers to determining the physiological and pathological conditions of the pulse information, and the positioning refers to determining the corresponding part of the pulse condition, namely, the fingertip pulse conditions of the index finger, middle finger and ring finger correspond to the Cunkou, Guankou and Chikou parts, and the light, medium and heavy represented surface and interior levels. An information collection method of the fingertip pulse condition qualitative positioning analysis method and a corresponding analysis system are also provided. The present application can implement the traditional Chinese medicine pulse condition analysis without being restricted by personnel, time and space, and obtain objective, accurate and stable pulse condition qualitative positioning information and analysis results.

The application discloses a kind of methods and systems for predicting the erosion rate of debris flow to scour bridge pier, the method includes: S1, by energy conservation law combining photoelectric effect theory to establish the erosion rate prediction model of debris flow to scour bridge pier;S2, to the test of debris flow to scour bridge pier, measure the erosion rate under different debris flow velocity and debris flow density;S3, according to the erosion rate calibration efficiency factor parameter in the erosion rate prediction model, to improve the erosion rate prediction model;S4, obtain the debris flow dynamics parameter to be predicted and substitute into the improved erosion rate prediction model, obtain the erosion rate of debris flow to scour bridge pier.The application is helpful to optimize bridge pier structure design, improve the impact resistance, reduce the damage of debris flow to bridge;It is helpful to guarantee the safety and durability of bridge in debris flow prone area, maintain regional traffic infrastructure stable operation.

The utility model discloses a clothes hanger structure, including parallel frame, bottom plate and support rod, and the one end of bottom plate is provided with the controller, is provided with motor in the controller, and the controller is electrically connected with motor to be used for controlling the positive and negative rotation and start -stop of motor, and bottom plate rotatory formula connection is provided with transmission shaft, and the output of motor is transmission connection with transmission shaft, and the bottom end of support rod is fixedly connected with transmission shaft, and parallel frame is erected in the top of bottom plate through support rod, and one side of parallel frame is fixedly provided with the photosensitive sensor for producing photoelectric effect, and photosensitive sensor is electrically connected with controller, the utility model discloses have the control mode of manual and automatic and can adapt to the use demand of different conditions, can according to the light intensity of sunlight to automatically extend or retract clothes, can avoid clothes being drenched by rain, and when the light is enough, can be re-dried in the place without shelter, switches manual mode, and the user can control clothes to extend or retract at will.

The application discloses a kind of photodetector based on perovskite nanowire radial junction and preparation method, including detector substrate, bottom electrode, perovskite core nanowire, perovskite first epitaxial shell, perovskite second epitaxial shell, top electrode.The perovskite core nanowire is p-type nanowire or n-type nanowire, the perovskite first epitaxial shell is intrinsic layer, and the second epitaxial shell is n-type layer or p-type layer;Perovskite core nanowire, first epitaxial shell and second epitaxial shell constitute radial pin junction or nip junction;The bottom electrode and top electrode layer respectively in perovskite core nanowire and second epitaxial shell form ohmic contact.The application increases the effective action area of photoelectric effect by nanowire array and its radial junction, improves photoelectric conversion quantum efficiency;Nanowire radial has quasi-single crystal structure, improves photo-generated carrier transport capacity, and then increases detection external quantum efficiency.

This invention discloses a method for measuring the phase fraction of multiphase fluids based on a non-radiative composite quantum light source, relating to the field of online metering technology for complex multiphase flows in industry. The method includes: S1 Static calibration to obtain the number of quantum projections in oil, gas, water, sand, and fluid-free states; S2 Calibration to obtain the photoelectric effect cross section and Compton scattering cross section at various energies; S3 The multiphase fluid flows through a throttling structure, allowing quantum light to penetrate the multiphase fluid and collecting the number of transmitted quantum projections; S4 Constructing a quantum cross section function relationship equation; S5 Constructing a nonlinear equation set; S6 Solving to obtain the mass phase fraction of each phase. Based on the quantum phase fraction measurement principle of the photoelectric effect and the difference in Compton scattering cross section, this method overcomes the technical limitations of traditional attenuation coefficients, achieving a mass phase fraction measurement accuracy of ±0.1%. The relative errors in mass flow rate measurement for each phase are ±7.5% for gas, ±5% for liquid, and ±3.5% for solid, significantly better than traditional dual-energy gamma metering technology, meeting the requirements of refined production in oil and gas fields and precise control of drilling and fracturing.

This invention discloses a biological tissue electric field feedback control system under the action of a low-temperature plasma jet, relating to the field of plasma technology. The system includes: a high-voltage reactor generating low-temperature plasma based on a high-frequency voltage; a microfluidic gas pump forming a plasma jet from the low-temperature plasma generated by the high-voltage reactor through a gas flow rate; when the plasma jet acts on biological tissue, a photoelectric effect electric field sensor collects the electric field signal of the biological tissue and sends the electric field signal to a computer core control system; the computer core control system generates a first control signal and a second control signal based on the electric field signal, and adjusts the amplitude and frequency of the high-frequency voltage output by the high-voltage reactor through the first control signal, and adjusts the gas flow rate of the microfluidic gas pump through the second control signal to adjust the output intensity of the plasma jet. This system reduces the safety risk of tissue damage caused by excessively strong electric fields and improves the electrical safety of clinical applications.

The application discloses a controllable optical fiber probe optical switch control circuit and relates to the field of switch control. The controllable optical fiber probe optical switch control circuit comprises an optical signal detection module, a switch control module and a process feedback module. The optical signal detection module is used for detecting an optical signal and outputting a first signal to the switch control module after the optical signal is input. The switch control module is used for building a conduction loop of the optical fiber probe and a control system after receiving the first signal and disconnecting the conduction loop of the optical fiber probe and the control system when receiving a third signal. Compared with the prior art, the application has the beneficial effects that: the cooperation of the optical signal detection module, the switch control module and the process feedback module set in the application enables the optical switch to realize microsecond-level high-speed switching through photoelectric effect, realizes the isolated connection of the optical fiber probe and the control system, and has no mechanical wear; the self-power-off feedback module set in the application checks the automatic disconnection condition of the optical switch and cooperates with the MCU to judge the time required from closing to self-power-off.

The application discloses a transducing unit and a dual-effect isotope battery combining photoelectric effect, and belongs to the isotope battery field. The transducing unit comprises a main body for absorbing rays emitted by radioactive isotopes to generate primary carriers, an excited light impurity for absorbing radiant energy to generate fluorescence, and a photoelectric conversion material attached to at least a surface of the main body. The excited light impurity is doped into the main body, the photoelectric conversion material in the main body absorbs the fluorescence to generate secondary carriers, and then the conversion from light energy to electric energy is realized. The dual-effect isotope battery combining photoelectric effect realizes higher energy conversion efficiency and higher energy output density, and provides a favorable basis for optimizing long-term output stability of the battery.

This invention provides a zinc oxide-based self-powered ultraviolet photodetector and its fabrication method based on the synergistic enhancement of ferroelectric and pyroelectric photoelectronic effects, belonging to the field of semiconductor photodetector technology. The process involves first cleaning indium tin oxide (ITO) conductive glass; depositing a zinc oxide seed layer on the ITO conductive glass surface and annealing it; growing zinc oxide nanorods on the surface of the zinc oxide seed layer and annealing them; depositing barium titanate on the surface of the zinc oxide nanorods and annealing them to form a shell layer; spin-coating a PEDOT:PSS layer on the surface of the barium titanate shell layer; and sputtering a silver top electrode on the surface of the PEDOT:PSS layer to obtain the ultraviolet photodetector. This invention improves the device's self-powered ultraviolet detection performance, transient response capability, and photoelectric conversion efficiency by constructing a zinc oxide nanorod / barium titanate core-shell / PEDOT:PSS double heterojunction and utilizing the ferroelectric polarization effect of barium titanate and the pyroelectric photoelectronic effect of zinc oxide to synergistically regulate the interfacial electric field and carrier transport.