32 results about "Photovoltaic effect" patented technology

An integrated configurable photodetector with an ultra-high circular polarization extinction ratio and a preparation method therefor are provided. The photodetector includes a metal reflective layer, a dielectric layer, an electrode layer, and a two-dimensional material layer. The electrode layer includes symmetrically arranged Z-shaped metallic optical antenna arrays which are respectively integrated with a source electrode and a drain electrode and have opposite chirality. The photodetector operates at zero bias state, and a photo-response is photovoltaic effect, hot electron injection, photo-thermoelectric effect and so on induced by a Schottky junction composed of the source electrode, the drain electrode and the two-dimensional material. By adjusting the distribution of the incident light in the source and drain electrode regions, under specific Circularly polarized light, photocurrents of equal magnitude but opposite directions cancel each other out, resulting in a net output of zero and significantly reducing noise.

A LiGa-based 0.5 In 0.5 A self-driven X-ray detector based on Se2 crystal and its fabrication method. This detector employs an MSM device structure with c-plane LiGa... 0.5 In 0.5 Using Se2 wafers as semiconductor materials and metal materials as electrodes, self-driven X-ray detection can be achieved under zero bias voltage; the above-mentioned self-driven X-ray detector fabrication method includes the following steps: (1) fabricating LiGa 0.5 In 0.5 (1) Se2 crystal; (2) Directional processing of c-plane LiGa 0.5 In 0.5 Se2 wafer; (3) LiGa 0.5 In 0.5 The upper and lower surfaces of the Se2 wafer are polished and passivated; (4) in LiGa 0.5 In 0.5 Metal electrodes are deposited on the upper and lower surfaces of a Se2 wafer. This invention utilizes LiGa... 0.5 In 0.5 The bulk photovoltaic effect generated by the non-centrosymmetric structure of Se2 enabled the fabrication of a self-driven X-ray detector with a simple structure. Furthermore, due to the LiGa... 0.5 In 0.5 Se2 crystals have high resistivity, and the devices fabricated from them have low dark current, enabling highly sensitive X-ray detection.

A near-infrared radiation detector comprises: a substrate comprising a semiconductor; a substrate electrode formed in contact with the substrate; an active layer formed over the substrate, the active layer comprising a ferroelectric material; and an active layer electrode formed in contact with the active layer and substantially transparent to near-infrared radiation. The detector is operable without applied external bias so that, when near-infrared radiation is incident on the detector, charge carriers are generated by a photovoltaic effect in the substrate / active layer heterojunction and a temperature gradient is generated in the active layer, providing a pyro-phototronic current signal indicative of the near-infrared radiation incident on the detector. Also disclosed is a corresponding method of detecting near-infrared radiation.

This application relates to the field of vest technology, disclosing a reflective warning vest, including a vest, an arc-shaped magnetic plate, a magnetic base, a warning light, a magnetic plate, a photovoltaic panel, a storage battery, and a control box. In use, in dimly lit environments at night, the warning light can be activated via the control box to serve as a warning, making it easily observable and alerting others to avoid the area. During this time, the storage battery continuously consumes its charge. In well-lit environments during the day, the photovoltaic panel utilizes the photovoltaic effect at the semiconductor interface to directly convert solar energy into electrical energy, which is then stored in the storage battery to charge it. This compensates for the nighttime power consumption and enables automatic battery charging. Therefore, there is no need to repeatedly remove and recharge the battery, saving time and effort and offering the advantage of ease of use.

A method for manufacturing a solar panel having a solar cell and integrated circuits on the same silicon wafer is disclosed. The solar panel include two groups of semiconductor wafers. Each of the first group of semiconductor wafers includes a solar cell for generating direct current via the photovoltaic effect. Each of the second group of semiconductor wafers includes a solar cell for generating direct current via the photovoltaic effect, and some integrated circuits arranged to perform computations. The integrated circuits are solely powered by the solar cell from the second group and other solar cells from the group of semiconductor wafers.

The application discloses a lutetium manganate-based near-infrared light detection film, a preparation method and application thereof, and has a molecular formula of Lu (0.98‑x) Er 0.02 Yb x MnO3, wherein x is 0.04-0.10. The application is prepared by rare earth elements Er and Yb co-doping for regulation, and a Lu (0.98‑x) Er 0.02 Yb x MnO3 base film colloid, when x is 0.04-0.10, the optical absorption range is widened and the band gap is reduced, and due to efficient energy transmission between Er 3+ , Yb 3+ , efficient pumping of Er 3+ is realized, thereby enhancing the photovoltaic effect of the LMO film, greatly improving the photoelectric current density, and improving the responsivity and the detection rate by several times under 850 nm near-infrared wavelength. The up-conversion strategy based on multiple rare earth elements co-doping has positive multiple positive effects on the light detection performance, and promotes the development of the ferroelectric series in the field of light detection. Meanwhile, the material is expected to become a new generation of environment-friendly lead-free ferroelectric film material.

The application discloses a self-powered artificial optical electric synapse with selective detection function and a preparation method thereof, and sequentially grows a polymer dielectric layer and two different ultrathin semiconductor light response layers on a SiO2 / Si substrate, wherein the upper ultrathin semiconductor light response functional layer is semi-covered on the lower ultrathin semiconductor light response layer to form an asymmetric heterojunction, then gold films are transferred to the lower and upper semiconductor light response functional layers as source and drain electrodes by using a non-invasive gold film transfer process, and the preparation of the self-powered artificial optical electric synapse with selective detection function is completed. The self-powered optical electric synapse with selective detection function can selectively detect and process ultraviolet light without any voltage by coupling photovoltaic effect and interface charge capture behavior, and has the ability of wide spectrum detection under the condition of applying voltage, and can simulate the perception and signal processing function of the retina.

The application discloses a dual-color detector with bipolar response, a preparation method and application thereof. The detector comprises a first light absorption layer capable of absorbing light in a first wavelength domain and forming photo-generated carriers based on a photovoltaic effect; a second light absorption layer capable of absorbing light in a second wavelength domain and forming photo-generated carriers based on a photothermoelectric effect, the second light absorption layer cooperating with the first light absorption layer to form a pn heterojunction; a first electrode in electrical contact with the first light absorption layer, and the first electrode being spaced apart from the second light absorption layer; and a second electrode in electrical contact with the second light absorption layer. The dual-color detector has the advantages of high integration, bipolar response, low energy consumption, simple operation, high accuracy, and great significance for simplifying the design of an optical communication system and realizing an efficient signal modulation scheme.

The application relates to the technical field of silicon nano array, and proposes a permeation passivation method for a silicon nano array, which comprises the following steps: dropping a passivation solution onto the surface of the silicon nano array, standing until permeation, and completing passivation. Through the technical scheme, 1) the passivation problem of the silicon nano array is solved, the silicon nano array prepared through physical etching and chemical etching is effectively and high-quality passivated, large-scale vacuum equipment required by an existing passivation scheme is eliminated, the process is simplified, the cost is reduced, and the safety is improved; 2) the silicon nano array is permeation passivated, so that the silicon nano array simultaneously has low reflection loss and low recombination loss functions, meets two necessary conditions of inverse Auger abnormal photovoltaic effect (that is, one photon generates two pairs of electron-hole pairs), the external quantum efficiency is greater than 100%, the SQ theoretical limit of the single-crystal silicon cell efficiency can be broken through, and higher cell photoelectric conversion efficiency can be obtained.

The invention relates to the technical field of double-sided photovoltaic modules, and discloses a double-sided photovoltaic module and a laminated structure thereof, and the double-sided photovoltaic module comprises a stable support, a positioning block which is fixedly installed at the bottom of the stable support, a photovoltaic panel which is arranged at the top of the stable support, and a photovoltaic module which is arranged at the side position of the stable support. The photovoltaic module comprises a stabilizing mechanism arranged on the side of the stabilizing support, the photovoltaic panel comprises a photovoltaic mechanism, the photovoltaic mechanism is located above the stabilizing mechanism, the photovoltaic mechanism is arranged on the inner wall of the photovoltaic panel, and a cooling mechanism is arranged on the inner wall of the photovoltaic panel. The problems that an existing photovoltaic module has certain limitation, a traditional single-face photovoltaic module can only utilize illumination of the front face, the back face can not effectively utilize light energy, consequently, the overall power generation efficiency is limited, under some complex illumination conditions, the photovoltaic effect can not be fully exerted, and the light energy absorption and conversion efficiency of the front face and the back face can not be well balanced are solved.

Flexible composite film ferroelectric memory and sensor under flexoelectric photovoltaic effect. The application relates to the application of a flexoelectric photovoltaic device in a ferroelectric memory, in particular to a flexible composite film with flexoelectric photovoltaic effect and the application in a memory and a sensor. The flexible composite film comprises an organic support film, at least one group of inorganic nanometer arrays is inlaid in the organic support film, and the inorganic nanometer arrays have a flexoelectric effect; any of the inorganic nanometer arrays comprises a plurality of inorganic nanometer tubes or inorganic nanometer fibers arranged in a direction, and the length direction of the inorganic nanometer tubes or inorganic nanometer fibers is less than 30 degrees with the thickness direction of the organic support film. The flexible composite film has the characteristics of high flexoelectric coefficient, large photovoltaic current, good flexibility and no easy failure after repeated bending.

The application provides a luminescent metal organic framework material for a radiophotovoltaic effect nuclear battery and a preparation method thereof, the material has a chemical general formula of M-TCPE, wherein M is Zr or Hf, and TCPE is 4,4',4'',4'''-(ethylene-1,1,2,2-tetrayl) tetrakisbenzoic acid. The material is prepared by using a step-by-step pre-assembly-gradient crystallization solvothermal method, M-TCPE is obtained by controlling a pre-assembly temperature of 363 K and a crystallization temperature of 393 K, the material firstly expands the 'anti-heavy atom effect' to the MOF system, and the radiophotoluminescence intensity of Hf-TCPE is increased by 14.6% compared with that of Zr-TCPE. M-TCPE is compounded with PDMS to prepare a flexible fluorescent film, and the flexible fluorescent film is directly attached to a photovoltaic module to form a radiophotovoltaic effect nuclear battery, wherein the maximum output power of the nuclear battery based on Hf-TCPE reaches 1.37 muW, and is increased by 18.1% compared with that of a Zr-based nuclear battery.

The present disclosure relates to the field of photoelectric detection technology, and specifically relates to a micro-nano particle characterization system and characterization method based on AC photovoltaic effect. The present disclosure solves two major technical problems in the sensitivity and measurement accuracy of the existing photoelectric detection technology by innovatively introducing the AC photovoltaic effect. It significantly improves the sensitivity of the photoelectric detector, breaks through the sensitivity bottleneck of traditional technology; it effectively reduces the interference of continuous laser irradiation on micro-nano particles, and improves the measurement accuracy. These technical breakthroughs not only broaden the application scope of photoelectric detection technology, but also provide more accurate and reliable technical means for the characterization of micro-nano particles, which has important scientific significance and application value.

The invention relates to the technical field of optoelectronic devices, and discloses a purple phosphorus photovoltaic effect photoelectric detector and a preparation method thereof.The purple phosphorus photovoltaic effect photoelectric detector comprises a substrate, a purple phosphorus active layer and two electrodes, the purple phosphorus active layer is arranged on the top face of the substrate, and the two electrodes are in ohmic contact with the purple phosphorus active layer respectively; the purple phosphorus active layer absorbs incident light and generates photon-generated carriers through a bulk photovoltaic effect, and the photon-generated carriers are directionally separated under the action of an internal electric field of the purple phosphorus active layer and are respectively collected by the two electrodes. Purple phosphorus is selected as a photosensitive material, the photovoltaic effect of the purple phosphorus is used as a core mechanism of photoelectric conversion, self-driven work of the photoelectric detector is achieved, dependence on an external power source is eliminated, the detection signal-to-noise ratio and practicability are improved, and the photoelectric detector can accurately distinguish the polarization state of light and also can accurately distinguish the polarization state of light. And an electric signal which is strong enough can be generated for high-sensitivity detection.

The utility model relates to a solar water and electricity co-production device based on solar photo-thermal and photoelectric effects. The device comprises a glass cover plate (1), an inner-layer water tank (2), a lithium battery box (3), a serial port screen (4), a carbon-based photo-thermal conversion film (5), a solar panel (6), a heat dissipation block (7), a thermoelectric power generation sheet (8) and a rectangular heat absorption block (9). Wherein the glass cover plate (1) is arranged at the top of the glass box body, the carbon-based photo-thermal conversion film (5) and the inner-layer water tank (2) are arranged at the bottom of the glass box body, the solar panels (6) are symmetrically arranged on the outer side faces of the glass box body, the heat dissipation block (7) is further arranged outside the glass box body, and the heat dissipation block (7) is connected with the thermoelectric power generation piece (8). The thermoelectric power generation sheet (8) is connected with the rectangular heat absorption block (9), and the lithium battery box (3) and the serial port screen (4) are arranged adjacently.

The invention relates to the technical field of isotope batteries and discloses a radiation photovoltaic and radiation photovoltaic dual-effect isotope battery and a preparation method thereof. The radiation photovoltaic and radiation photovoltaic dual-effect isotope battery comprises at least one radiation photovoltaic / radiation photovoltaic light-emitting unit and at least one radiation photovoltaic transduction layer; the radiation photovoltaic / radiation photovoltaic light-emitting unit comprises a radioactive source layer which is provided with a first face and a second face which are oppositely arranged in the thickness direction of the radioactive source layer. The first surface and the second surface are respectively provided with a fluorescent layer; the radiation photovoltaic transduction layer is arranged on the first surface with the fluorescent layer or the second surface with the fluorescent layer, and the radiation photovoltaic transduction layer can be in contact with the fluorescent layer arranged on the first surface or the fluorescent layer arranged on the second surface. The isotope battery with the radiation photovoltaic and radiation photovoltaic dual effects can overcome the problems of low utilization rate and low output power of a radioactive source, and the utilization rate of the radioactive source and the output power can be improved by stacking and combining the radiation photovoltaic / radiation photovoltaic light-emitting unit and the radiation photovoltaic transduction layer.

The utility model discloses a solar sunscreen car cover which comprises a cover body provided with a plurality of solar panels, every two adjacent solar panels are connected in a relatively rotating mode and have an unfolded state and a folded state, and semiconductor crystal layers generating power through the photovoltaic effect are arranged on the two opposite faces of each solar panel. Power is generated in a folded state and an unfolded state; and the power supply assembly comprises a power supply box and a battery, the battery is detachably arranged in the power supply box, the power supply box is provided with an electrode electrically connected with the battery, and the power supply box is electrically connected with the solar panel. The problems that a battery of an automobile cover cannot be detached and replaced, and the automobile cover cannot generate electricity in a folded state are solved.

The utility model relates to the technical field of protective shells, and provides a solar magnetic wireless charging protective shell which comprises a shell body and further comprises a clamping groove formed in one side of the shell body, and a magnetic wireless charging plate is clamped in the clamping groove. According to the utility model, the solar photovoltaic panel is unfolded, the solar photovoltaic panel converts solar radiation into electric energy through a photovoltaic effect, the solar photovoltaic panel is connected with the control circuit board and transmits the electric energy to the circuit board, and the magnetic attraction wireless charging plate is composed of a wireless charging module, an electromagnetic induction coil and a magnetic attraction disc. A wireless receiving module of the magnetic wireless charging plate is connected with the control circuit board, receives stabilized 5V current from the control circuit board, and charges a mobile phone through an electromagnetic induction coil, so that when a user is outdoors and the mobile phone is about to be out of power, the mobile phone can be wirelessly charged by utilizing solar energy; therefore, the problem of mobile phone endurance when a user encounters an emergency outdoors is solved.

The present invention belongs to the technical field of photoelectric detection, and specifically relates to a micro-nano particle characterization system and method based on an alternating-current photovoltaic effect. The characterization system comprises: a scintillating light source module, which is used for generating intermittent optical signals, wherein the generated intermittent optical signals are directed into a particle solution to be characterized, so as to generate scattered light; a photoelectric detection module, which comprises a photoelectric detector, and is used for receiving the scattered light and generating an alternating-current photoelectric signal, wherein the photoelectric detector comprises a semiconductor substrate and an ultra-thin material located on the surface of the semiconductor substrate, and the ultra-thin material is an oxide semiconductor, a nitride semiconductor or an organic material semiconductor; and a signal processing module, which is used for analyzing the alternating-current photoelectric signal and outputting physical parameters of micro-nano particles. In the present invention, intermittent optical signals are used as incident light, so that the interference of existing continuous laser irradiation on micro-nano particles is effectively reduced; and a photoelectric detector based on an alternating-current photovoltaic effect is used, so that the two major technical problems of the sensitivity being insufficient and the measurement accuracy being insufficient in existing photoelectric detection technology are solved.

The invention discloses a circularly polarized light detection method based on an achiral medium micro-nano structure and a photoelectric detector. As an antisymmetric mode and a symmetric mode excited by x polarized light and y polarized light in the micro-nano structure interfere with each other, light intensities of near-field modes excited by left-handed light and right-handed light can be respectively concentrated on two sides of the micro-nano structure. The electrodes are arranged on the two sides of the micro-nano structure, and a chiral dependent near-field mode can be converted into photoelectric signals in different directions by utilizing photoelectric mechanisms such as a photo-thermoelectric effect or a photovoltaic effect, so that circularly polarized light photoelectric detection is realized. The circularly polarized light detection method and the photoelectric detector are high in chiral resolution capability, large in working bandwidth, free of light intensity calibration and independent of specific materials, structures or photoelectric response mechanisms, and can be popularized to photoelectric detectors based on different materials or mechanisms.

The invention relates to the technical field of photoelectricity, in particular to a bimodal polarization fusion visual sensor, a preparation method thereof and a model construction method. According to the invention, the ferroelectric layer in the sensor can realize static gray imaging by using the bulk photovoltaic effect and ferroelectricity; meanwhile, the Van der Waals heterojunction formed by the ferroelectric layer and the anisotropic photosensitive layer simulates the plasticity behavior of biological synapse through charge recombination-capture dynamics under the irradiation of polarized light, and can asynchronously output a polarization dynamic image with high time resolution and low delay in an event-driven mode. According to the visual sensor, static imaging and polarization dynamic perception are fused in a hardware level in a single device, the visual perception robustness and information richness under a complex light field (such as glare and haze) are remarkably improved, and a high-energy-efficiency and high-performance bionic visual solution is provided for application of automatic driving, machine vision and the like.

The invention discloses a thin film device for enhancing photocatalytic performance based on a water photovoltaic effect and a hydrogen production method thereof. The thin film device comprises a PVC substrate layer; the plurality of carbon paste wires are arranged at intervals and cover the PVC substrate layer; and the titanium dioxide film is arranged in a continuous area on the PVC substrate layer and covers all the PVC substrate layer and the at least two carbon paste wires in the continuous area. The PVC is used as the substrate layer, the carbon paste wire is formed on the substrate layer, then the titanium dioxide thin film is communicated with the carbon paste wire to form the thin film device for enhancing the photocatalytic performance based on the hydro-voltaic effect, and the device can achieve in-situ coupling of the hydro-voltaic effect and the photocatalytic process under the evaporation and illumination conditions, so that the hydrogen production efficiency is improved.

The invention discloses a ZnSnN2 homojunction and a preparation method thereof, and the method comprises the steps: depositing a zinc-tin alloy target in which the ratio of Zn to Sn is 3: 1 on a substrate through a radio frequency sputtering method in a flowing nitrogen and argon atmosphere at 50 DEG C to obtain a ZnSnN2 film. And in the flowing nitrogen and argon atmosphere, Ag doping is carried out on the ZnSnN2 thin film in the room temperature environment, and the ZnSnN2: Ag thin film is obtained. And depositing a Pt target on the ZnSnN2: Ag film through a direct current sputtering method in a flowing argon atmosphere to obtain the ZnSnN2 homojunction. The problem that the ZnSnN2 homojunction prepared by the existing method is poor in rectification characteristic and has no photovoltaic effect is solved.

The invention discloses a portable solar liquid crystal writing board device and a manufacturing method thereof, and belongs to the field of photovoltaic modules. A writing board comprises a solar module, a storage battery, a control module and a writing panel. The solar module comprises a battery piece, an insulating layer and a conducting layer; the writing panel is configured to be capable of changing colors through pressure change; the battery piece has a photovoltaic effect and transmits generated electric energy to the storage battery for storage; the battery piece and the conducting layer are arranged on the two end faces of the insulating layer respectively, and the control module is used for controlling on-off of electric connection between the storage battery and the writing panel and between the storage battery and the battery piece. Compared with the prior art, the writing board is light in weight, thin in thickness and convenient to carry, meets the integrated requirements of outdoor workers / students for charging, lighting and recording, has longer endurance through solar power generation, is low in production cost and has application prospects.

The invention discloses a tellurium nanowire optical fusion multiplication and addition processing system and method based on a body photovoltaic effect, and belongs to the technical field of photon calculation. Through the bulk photovoltaic effect of the spiral tellurium nanowires and the non-centrosymmetric structure, the fusion multiplication and addition operation is directly realized in the optical domain, an additional photoelectric detector (PD), an analog-to-digital converter (ADC) and an integrated circuit are not needed, and the photoelectric conversion delay and the power consumption are reduced by more than 90%; meanwhile, the influence of phase noise, thermal fluctuation and optical coupling loss is eliminated, and the system stability is remarkably improved.

The utility model provides a railway vehicle power supply system based on wind-solar complementation, including photovoltaic module, fan module, energy storage battery and control device, photovoltaic module and fan module are electrically connected with control device, control device is electrically connected with energy storage battery, photovoltaic module is provided on the top of vehicle, and the fan module is provided on the top of vehicle. The solar cell panel is arranged on the vehicle and used for converting light energy into electric energy through the photovoltaic effect of the solar cell panel and then charging the energy storage battery, and the fan assemblies are arranged on the two sides of the vehicle and used for converting wind energy into mechanical energy, converting the mechanical energy into the electric energy through the generator and then charging the energy storage battery. And the energy storage battery is used for supplying power to the load. Wind power generation and photovoltaic power generation are used for providing electric energy for the railway vehicle, energy consumption can be reduced, and meanwhile equipment is simple, convenient to install and reliable in operation.

This invention belongs to the field of photoelectric detection material preparation technology, specifically relating to an indium sulfide / copper sulfide heterojunction porous spherical broadband photoelectric detection material, its preparation method, and its application. An indium source and a copper source precursor are added to an aqueous solution of a hydroxyethyl ionic liquid and stirred until homogeneous. Then, a sulfur source is added and stirred until homogeneous. A hydrothermal reaction is then carried out at 140-220 °C. After the reaction, the mixture is centrifuged and washed, and the resulting precipitate is dried under vacuum. The indium sulfide / copper sulfide heterojunction prepared by this invention has a porous spherical structure. This porous sphere is formed by the self-assembly of two-dimensional nanosheets with a thickness of approximately 20-500 nm. The diameter of the entire porous sphere is approximately 4.5-15 μm, and its surface and interior are distributed with macropores of 50 nm-2 μm. This porous spherical structure has a high specific surface area, abundant surface states and defect energy levels, and can generate a significant photovoltaic effect under zero bias voltage, achieving broadband, fast, and sensitive photoelectric detection from the ultraviolet, visible, to near-infrared range.

This invention discloses a ferroelectric photovoltaic device and its fabrication method based on the shielding effect regulated by a dielectric insulating layer, belonging to the field of ferroelectric photovoltaic device technology. The ferroelectric photovoltaic device based on the shielding effect regulated by a dielectric insulating layer comprises, from bottom to top, a substrate, a bottom electrode layer, a dielectric insulating layer, a photoelectric ferroelectric functional layer, and a top electrode layer; the dielectric insulating layer is an Al2O3 layer; the photoelectric ferroelectric functional layer is a hexagonal LuMnO3 single crystal layer. This invention utilizes the high dielectric constant Al2O3 dielectric insulating layer to form a mirror shield against external free charges, weakening the compensation of interface induced charges on the ferroelectric residual polarization, thereby regulating the ferroelectric depolarization field and thus controlling the photovoltaic effect; simultaneously, the dielectric insulating layer can effectively block carrier injection, suppress leakage current, reduce dark current, and thus increase the photoelectric response of the device.

This disclosure pertains to snow removal systems, specifically systems designed to maintain the functional efficiency of solar panels by preventing the accumulation of snow on solar panels. Solar panels are devices that convert light into electricity and are commonly used in a variety of settings, from residential rooftops to large-scale solar farms. These panels consist of multiple solar cells made from semiconductor materials that exhibit the photovoltaic effect. The efficiency of solar panels is contingent upon their exposure to sunlight, which can be impeded by environmental factors such as the accumulation of snow. The technical background involves mechanisms and methods for preserving the optimal operational state of solar panels in environments subject to snowfall.

This application relates to the field of building materials technology, and more particularly to a building coating material, its preparation method, and its application. A building coating material is provided, comprising a filler with selective reflectivity, a photoluminescent material, a polymer emulsion, additives, and water. The addition of the selectively reflective filler results in a coating with high reflectivity only within its spectral response band, enhancing the intensity of incident solar radiation and improving the power conversion efficiency of BiPV. Combined with the photoluminescent material, the photoluminescent material re-emits photons of specific wavelengths absorbed by the selectively reflective filler within the visible range, generating a photovoltaic effect, improving energy conversion efficiency, and simultaneously achieving effective radiative cooling. Therefore, the obtained building coating material is suitable for a wider range of building types and surfaces, possessing significant market potential and practical usability.