66 results about "Luminophore" patented technology

A long-persistent luminescence emitter containing a polymer that contains, relative to the total molar amount of an electron donor structural unit and an electron acceptor structural unit therein, 70 mol % or more of an electron donor structural unit and less than 30 mol % of an electron acceptor structural unit, or containing a polymer that contains, relative to the total molar amount of an electron donor structural unit and an electron acceptor structural unit therein. 70 mol % or more of an electron acceptor structural unit and less than 30 mol % of an electron donor structural unit. The emission decay after stopping light irradiation to the emitter is power law decay.

A device for luminescent imaging includes an array of imaging pixels, a photonic structure over the array of imaging pixels, and an array of features over the photonic structure. A first feature of the array of features is over a first pixel of the array of imaging pixels, and a second feature of the array of features is over the first pixel and spatially displaced from the first feature. A first luminophore is within or over the first feature, and a second luminophore is within or over the second feature. The device includes a radiation source to generate first photons having a first characteristic at a first time, and generate second photons having a second characteristic at a second time. The first pixel selectively receives luminescence emitted by the first and second luminophores responsive to the first photons at the first time and second photons at the second time, respectively.

The invention discloses a self-aggregation-induced emission type photosensitizer and a preparation method and application thereof. The photosensitizer has excellent AIE performance, and singlet oxygen can be efficiently generated after aggregation in a physiological environment; and the photosensitizer can effectively overcome the aggregation-induced quenching phenomenon, and has a synergistic effect with the lovir drugs, so that the anti-herpes virus activity is remarkably improved, and the dosage and side effects are reduced.

The invention discloses construction and application of a biosensor based on an efficient antifouling interface and dual signal amplification, and belongs to the technical fields of optical / electric analytical chemistry, biosensing and material science. According to the invention, the electrode interface is modified with polyaniline doped with polytannic acid as an antifouling film, so that non-specific adsorption of interfering biomolecules in a complex medium is resisted; euTb-MOF is prepared as an efficient luminous body, Tb < 3 + > can transfer energy of Tb < 3 + > and ligand to Eu < 3 + >, and effective signal self-enhancement is realized; according to the EuTb-MOF, the reduction of S2O8 < 2-> is promoted by utilizing the reversible conversion of valence states of Co < 2 + > / Co < 3 + > and Fe < 2 + > / Fe < 3 + > and the synergistic catalysis of Ag NPs, so that the electrochemical luminescence signal of the EuTb-MOF is further improved. Based on the above strategy, the constructed biosensor has high detection sensitivity and precision and long service life, the linear range is 10 fM to 100 nM, and the detection limit is as low as 3.62 fM.

The invention belongs to the technical field of chemiluminescence immunoassay, and particularly relates to application of a luminescence retarder in improving development quality of solid-phase membrane immunodetection. According to the invention, when the concentration of the delay agent is fixed, the time of luminescence starting delay and the concentration of the enzyme catalyst are in nonlinear negative correlation, that is, the delay time is obviously increased along with the reduction of the enzyme concentration. The nonlinear negative correlation is suitable for luminescent systems of different reinforcing agents. Benefited from the enzyme concentration dependent luminescence delay effect, the chemiluminescence liquid with the delay effect is used for improving the development quality of solid-phase membrane immunodetection for the first time, noise and background signals are suppressed, and the chemiluminescence liquid has wide application value in the aspect of solid-phase membrane immunodetection.

This invention belongs to the field of immunoassay and biosensing technology, and discloses a method for preparing a ratiometric ECL biosensor based on Eu / Tb-Lu MOGs. Using Eu / Tb-Lu MOGs as the luminescent material and H3-tctpy and luminol as ligands, a single-luminescent material with dual ECL emission is synthesized. Lanthanide ions provide the cathode ECL emission, enhanced by the antenna effect and Tb→Eu energy transfer; the anode emits light from luminol using dissolved oxygen in water, requiring only the addition of K2S2O8 as a single co-reactant, resulting in fewer side reactions and a stable signal. The dual-potential ratiometric sensing utilizes the dual ECL signal for self-calibration, improving anti-interference and reliability; the single-luminescent dual-potential system achieves synchronous anode / cathode luminescence, simplifying the system and improving detection accuracy. By detecting changes in the ECL signal of different concentrations of analytes, the detection of microRNA-126 is achieved.

The invention discloses construction and application of a biosensor for triggering controlled release based on adjacent induced DNA strand displacement, and belongs to the technical fields of electrochemical luminescence, biological analysis and nano science. According to the invention, by integrating adjacent induced DNA strand displacement and controlled release strategies, the ultra-sensitive self-closing dual-mode biosensor taking the Au-Ag nanocluster as a luminous body is developed, and the ultra-sensitive self-closing dual-mode biosensor is used for trace detection of neuron-specific enolase. Due to the synergistic characteristic between the double metals, the Au-Ag nanocluster has high electrochemical luminescence (ECL) efficiency. Meanwhile, the reduction of S2O8 < 2-> is catalyzed by cyclic conversion between Fe < 2 + > / Mn < 3 + > and Fe < 3 + > / Mn < 4 + >, and a large amount of SO4 <-> is generated for ECL emission. The specific binding between the target antigen and the antibody can drive DNA strand displacement to open a blocked hole, so that the electrochemical probe falls off and the probe is quenched to release, the self-closing of an electrochemical signal and an ECL signal is realized, the detection sensitivity and accuracy of the sensor are effectively improved, and the sensor is suitable for immunoassay of various biomarkers.

The invention belongs to the technical field of luminescence imaging detection, and particularly relates to an electrochemical luminescence imaging detection platform based on a closed bipolar electrode array and application. Comprising a sensor and a detection unit, a bipolar electrode array unit comprises an insulating substrate, an anode region and a cathode region, the anode region and the cathode region are isolated from each other and are of the same structure, and each anode region or each cathode region is provided with a plurality of independent holes which are arrayed in parallel; gold nanoparticles are loaded in a plurality of independent open pores of the parallel array in the anode region, and a Ru (bpy) 32 < + >-TPA system is constructed; au / g-C3N4 composite materials are loaded in a plurality of independent open pores of the parallel array in the cathode region, and an Au / g-C3N4-K2S2O8 system is constructed. According to the invention, based on the bipolar electrode array unit, the terpyridyl ruthenium and the gold / graphite phase carbon nitride are used as different illuminants to realize capture and quantitative analysis for synchronous detection of acetaminophen and rutin, and the detection accuracy and high-throughput analysis are ensured.

The invention discloses a method for detecting oxytetracycline (OTC) based on nitrogen-doped graphdiyne (2N-GY) electrochemical luminescence sensing. The prepared 2N-GY has an electrogenerated chemiluminescence signal, the surface of the electrode is modified with an aptamer (Apt I) of carboxylated 2N-GY and OTC, and then non-specific binding sites are closed by using BSA to obtain the modified electrode. The modified electrode is used as a working electrode, an electrochemiluminescence biosensor is constructed by continuously modifying OTC and quenching a probe (PDAs-Apt II), and quantitative analysis is carried out on the OTC by detecting the change of an electrochemiluminescence signal. According to the present invention, the two OTC aptamers (Apt I and Apt II) are adopted as the recognition molecules to construct the electrochemiluminescence biosensor so as to achieve the high-specificity and high-sensitivity detection of OTC, and can be used for the actual detection application of milk, and the novel carbon material is adopted to replace the toxic light-emitting reagent, such that the detection cost is reduced, and the safety problem existing in the traditional light-emitting system is reduced.

The invention belongs to the technical field of fluorescent probes, and particularly relates to a fluorescent probe for detecting pyrophosphoric acid or pyrophosphate based on ratiometric fluorescence, a preparation method and application. According to the fluorescent probe, cyclotriphosphazene is taken as a core platform, a naphthalimide-triphenylamine luminophore and a terpyridine recognition unit are introduced, a multi-arm fluorescent probe is integrally formed, coordination terpyridine interacts with metal ions Zn < 2 + >, fluorescence signals are induced to change, and therefore sensitive detection on PPi is achieved. The fluorescent probe has the advantages of quick response, high selectivity, interference resistance and low cost, and has important application value in the fields of environmental science, biological science and the like.

The invention discloses a chiral binaphthol-based fluorescent material as well as a preparation method and application thereof, and belongs to the technical field of organic photoelectric materials. The fluorescent material takes a chiral binaphthyl derivative as a skeleton, and a chiral binaphthyl group is introduced into a para-position position of tetrafluoroterephthalonitrile, so that a chiral space charge transfer luminescence system with a clear structure is formed. The preparation method comprises two steps of nucleophilic substitution reaction, the reaction condition is mild, the synthetic route is simple, and the yield is stable. The material has dual-state emission and aggregation enhanced luminescence characteristics, avoids aggregation quenching, has excellent circular polarization luminescence performance, has a luminescence asymmetry factor (Glum) of 3.6 * 10 <-3 >-5.9 * 10 <-3 >, and can still maintain stable chiral luminescence characteristics in a doped film. The material can be widely applied to the fields of commercial anti-counterfeiting, fluorescent ink, circular polarization luminescent devices, 3D display, information encryption, biological probes, LED light sources and the like, and has good industrial amplification potential and practical application value.

The invention provides a chemiluminescent composition and a dynamic coding device and method. The chemiluminescent composition comprises (i) a luminophor compound; (ii) a first metal ion selected from one or more of Mn < 2 + >, Co < 2 + >, Cr < 3 + >, Fe < 2 + >, Fe < 3 + >, Cu < 2 + >, Ni < 2 + >, Pb < 2 + >, Zn < 2 + >, Ru < 2 + >, Ce < 3 + >, Ag < + >, Pt < 2 + >, and any combination thereof; (iii) second metal ions selected from one or more of the group consisting of zirconium ions, molybdenum ions, titanium ions, vanadium ions, niobium ions, aluminum ions, and any combination thereof; (iv) an organic ligand; (v) a first co-reactant; (vi) a second co-reactant and (vii) a luminescence retarder. The chemiluminescent composition provided by the invention can be used for accurately controlling one or more of luminescence color / wavelength, luminescence starting time, luminescence duration and luminescence intensity, precise design can be carried out on the basis, and a novel chemiluminescent coding device and a novel chemiluminescent coding method which are high in sensitivity, high in information density, precise, anti-interference and anti-cracking are realized.

The utility model discloses a building detection lamp, which relates to the field of building detection, and comprises a hand-held handle, the top of the hand-held handle is connected with a luminous body through metal heads, the metal heads are connected at two ends of the luminous body in a sealing manner, a clamping mechanism for improving the replacement efficiency of a rubber block of the detection lamp is arranged in a movable block, and the clamping mechanism comprises a slot. The inserting grooves are symmetrically formed in the side face of the movable block up and down, and elastic pieces are symmetrically connected into the inserting grooves. According to the detection lamp for the building, when the movable block slides, the rubber block can be driven to move to the side face of a reinforcing steel bar for extrusion, the handle can be positioned on the reinforcing steel bar through extrusion of the rubber block, the detection lamp is placed at other positions of a reinforcing steel bar cage according to needs, the detection lamp cannot fall off, and therefore the structure of the reinforcing steel bar cage can be observed more conveniently; and the angle between the rubber block and the luminous body can be changed by rotating the rotating block, so that the detection lamp can adapt to the internal space of the reinforcement cage more easily.

A method is provided to simultaneously identify and quantify critical structure attributes (CSAs) in proteoforms or proteoform families that includes the steps of:1. injecting a sample into a reagent stream of one or more detection enhanced molecular recognition reagents;2. incubating the combined sample:reagent(s) during migration through an analytical platform the causes molecular recognition reagent(s) to be sequestered by a specific critical structure attribute (CSA) in the analyte to form a luminon (An:*Sas) complex;3. using a sequestron selector in the reagent stream to overtake the luminon complex in a down-stream size exclusion chromatography (SEC) column to achieve mixing and formation of an Nc˜Pas:An:*Sas, Pas:An:*Sas, or *Pas:An:*Sas sequestome complex;4. resolving this sequestome complex from any unbound affinity selector(s) such as *Sas or *Pas, and non-analytes in the SEC column;5. transporting the resolved sequestome complex into a flow-through detection means that detects and quantifies CSAs in fluorescent labeled *Sas or *Pas bearing luminon or sequestome complex to generate data for the construction of critical structure attribute ratio plots as a function of elapsed fermentation time.

A luminophore has the general formula EA2−xRExSi5−x−yAlx+yN8−yOy:A, where0<x≤2 and 0≤y≤2, EA is an element or a combination of elements from the group of alkaline earth elements, RE is an element or a combination of elements from the group of rare earth elements, and A is an activator element. A method for the production of a luminophore and a radiation-emitting component are further disclosed.

This invention discloses the construction and application of a biosensor based on autocatalytic induced emission amplification and a bifunctional peptide, belonging to the fields of electrochemiluminescence, sensing analysis, and nanomaterials technology. In this invention, by integrating recognition (HWRGWV), charge neutralization (DE), antifouling (DKDKDKDKDK), and anchoring (C) fragments, a bifunctional peptide with antibody-targeted immobilization and interfacial anti-adsorption properties was designed, improving the target capture efficiency and antifouling capability at the interface. Simultaneously, AuAgTb-MOF with a synergistic amplification effect was developed as the luminescent agent. Specifically, 3,5-dicarboxyphenylboronic acid is used to enhance the Tb... 3+ Antenna effect and Ag NPs on S2O8 2‑ The catalysis significantly promoted the luminescence of AuAgTb-MOF. The intramolecular self-enhanced design of AuAgTb-MOF not only reduced energy transfer loss but also simplified the construction of the biosensor. Based on this, the constructed biosensor exhibited a fluorescence intensity of 3.38 × 10⁻⁶. ‑5 The low detection limit of U / mL enables sensitive and accurate detection of the biomarker carbohydrate antigen 242, providing a positive reference for the clinical diagnosis of pancreatic cancer.

The application belongs to the technical field of organic luminescent materials, and discloses a near-infrared organic scintillator material and a preparation method thereof. Based on the phosphorescence resonance energy transfer mechanism, the application uses an organic phosphorescence scintillator o-ITC crystal as an energy donor, and a near-infrared fluorescent luminophore RB or BBT-TPA as an energy acceptor. The near-infrared fluorescent luminophore material is dissolved in an organic solvent, and then the organic phosphorescence scintillator is added. The solvent is removed under specific conditions using a vacuum rotary evaporator, and finally the near-infrared organic scintillator material RB@o-ITC and BBT-TPA@o-ITC is obtained. The material effectively prolongs the luminescence wavelength of the organic scintillator. The maximum radiation luminescence wavelength of the BBT-TPA@o-ITC material reaches 920 nm, and the material has a wide application prospect in the fields of X-ray imaging, organic light-emitting diodes, biological imaging, advanced encryption and anti-counterfeiting, information storage and the like.

The invention discloses a titanium-doped zirconium MOF molecularly imprinted electrochemical luminescence sensor for high-sensitivity detection of HER2, and a preparation and detection method thereof, and belongs to the technical field of detection. A titanium-doped zirconium-based metal organic framework (Ti-Zr-TPE MOF) is dispensed on the surface of a working electrode to serve as a luminescent material, Ti-Zr-TPE realizes luminous intensity multiplication in an aggregation state compared with Zr-TPE by further enhancing an intra-molecular motion limited (RIM) mechanism, and a luminous body preparation process, co-reactant screening and detection parameters (such as potential scanning rate and pH value) are systematically optimized, so that the luminous intensity of Ti-Zr-TPE is improved. A set of stable Ti (at) Zr-TPE luminescent system is formed. Meanwhile, dopamine (DA) is used as a functional monomer, and HER2 is subjected to molecular imprinting through a molecular imprinting technology, so that the electrochemical luminescence sensor of a quenching system is constructed. The luminescent material based on the novel tetraphenyl ethylene (TPE) derivative has the advantages of high luminescent intensity, low background signal, high stability and specificity, simplicity and convenience in operation and the like, and has obvious advantages compared with a previously developed sensor for detecting HER2. According to the invention, quantitative detection of HER2 can be realized, and an innovative solution is provided for clinical early warning.

The invention discloses an anti-pollution and sterilization integrated non-co-reactant electrochemical luminescence (ECL) sensor for detecting staphylococcus aureus in an aquatic product as well as a preparation method and an application method of the anti-pollution and sterilization integrated non-co-reactant ECL sensor, and the anti-pollution and sterilization integrated non-co-reactant ECL sensor is suitable for ultra-sensitive detection of the staphylococcus aureus. The integrated hydrogel illuminant is characterized in that chitosan and citral are subjected to a Schiff base reaction to form a three-dimensional network in a cross-linking manner, and tetrakis (4-hydroxyphenyl) porphyrin (THPP) and luminol are introduced into the three-dimensional network. According to the present invention, THPP is adopted as a high efficiency oxygen evolution reaction (OER) electrocatalyst to generate reactive oxygen species (ROS) to replace the traditional hydrogen peroxide so as to be adopted as a co-reactant, such that the ECL signal of luminol is significantly enhanced; the hydrogel has excellent hydrophilicity and antibacterial activity, can significantly reduce non-specific adsorption, realizes anti-pollution detection, and realizes sterilization treatment after detection. By combining a DNA Walker signal amplification strategy, the sensor has a linear response to S. aureus within the range of 101-108 CFU / mL, the detection limit is as low as 0.39 CFU / mL, and the recovery rate of 97.3%-111.85% is obtained in a marine product actual sample. The device has the advantages of being simple in structure, sensitive in detection, high in anti-interference capacity, capable of achieving on-site rapid detection and the like, and is suitable for the fields of food safety, environment monitoring and clinical pathogenic bacterium detection.

The invention relates to the technical field of organic photoelectric material luminescence, and discloses a divalent platinum complex, a preparation method and application thereof and an organic photoelectric device, the divalent platinum complex has a structure as shown in formula (I): R1 is alkyl with at least two carbons; r2-R15 are the same or different and are independently selected from one or more of a hydrogen atom, a hydrogen isotope atom, a fluorine atom and a polyatomic substituent; the polyatomic substituent group comprises a substituted or unsubstituted alkyl group and / or a substituted or unsubstituted aryl group; the light-emitting wavelengths of the bivalent platinum complex in a dichloromethane solution and PMMA (polymethyl methacrylate) are both 500-540nm, and an OLED (organic light-emitting diode) device prepared from a luminous body can meet the standard of pure green light application;

The application discloses a kind of silicon heteroanthracene derivatives with green aggregation-induced emission characteristics and synthesis method and application, belong to luminescent material technical field.The structural formula of the derivative is with silicon heteroanthracene as core, and 9,9-dimethylfluorene group is connected on both sides.The introduction of 9,9-dimethylfluorene forms twisted non-planar structure, so that the luminescence of molecule is significantly enhanced in aggregated state, AIE characteristics are obtained, while retaining the inherent σ* of silicon heteroanthracene-pi* conjugation effect and low LUMO energy level advantage.The synthesis method is based on suzuki coupling reaction, with 2,7-dichloro-9,9-dimethyl-9H-9-silicon heteroanthracene and 9,9-dimethylfluorene-2-boronic acid pinacol ester as raw material, under the action of catalyst, phosphine ligand and base in ethanol / water mixed solvent, mild condition, simple operation.The derivative can be used as efficient green light emitting material in electrochemiluminescence field, especially as electrochemiluminescence luminophor for detection of quercetin, with high detection sensitivity, good selectivity and strong anti-interference ability.

The application belongs to the field of biosensing detection, and relates to a preparation method of an electrochemiluminescence aptamer sensor for detecting Cd 2+ and application thereof. The application first prepares two materials of PTCA-COF and AuNCs, and modifies the two materials to the surface of a treated glassy carbon electrode in a layer-by-layer manner. Meanwhile, a specific recognition element aptamer for Cd 2+ is introduced, and an electrochemiluminescence aptamer sensor based on PTCA-COF / AuNCs is constructed based on the quenching effect of Fc connected to the aptamer on the electrochemiluminescence signal. The electrochemiluminescence aptamer sensor takes PTCA-COF as a base material and enhances the electrochemiluminescence signal of the luminescent body AuNCs. The constructed sensor has excellent detection and analysis performance on the target Cd 2+ , and has a linear range of 1.0*10 ‑12 -5.0*10 ‑9 M, a detection limit of 6.6*10 ‑13 M, and advantages of high sensitivity, selectivity and reliability.

The invention discloses a substituent-dependent double-state emission illuminant molecule and a preparation method and application thereof, the structural formula of the double-state emission illuminant molecule is as follows: in the formula, when R1 is-H, R2, R3 and R4 are-H; when R1 and R3 are as shown in the specification, R2 and R4 are-H; and when R1, R2 and R3 are as shown in the specification, R4 is-H. The substituent-dependent double-state emission illuminant molecule provided by the invention has the property of double-state emission, also has a solvation effect, and can be used for detecting the content of organic solvents and water.

Illustrative embodiments of the invention generally relate to photovoltaics and solar energy harvesting devices and, particularly, to those that are transparent or semi-transparent, allowing sufficient visible light through them to allow visualization of objects through them, and more particularly, to those that supplement their primary near ultraviolet light absorption with secondary and / or tertiary absorptions of narrow bands of visible light while maintaining their transparency. Various embodiments of the invention relate to single solar materials with both primary ultraviolet absorption and secondary, narrow-band visible absorption, while some embodiments of the invention utilize mixtures of one or more materials to realize a primary ultraviolet absorption of light with secondary, or even tertiary, narrow bands of visible light absorption. Means of manufacturing such photovoltaics and solar energy harvesting devices will also be disclosed as well as the applications and uses thereof.

The invention discloses an organic molecule with an ultrasonic activated luminescence property, a nanoparticle and application. The organic molecule comprises a porphyrin molecule, a cyanine molecule, a BODIPY molecule, an organic semiconductor polymer molecule containing a thiophene structure, an organic semiconductor polymer molecule containing a styrene structure and an anthracene derivative. According to the invention, through molecular structure screening, several kinds of organic molecules capable of emitting light through ultrasonic activation are used as illuminants, an amphiphilic polymer is used as a surfactant, and the nanoparticles capable of emitting light through ultrasonic activation are obtained through ultrasonic treatment. The invention also provides an application of the ultrasonic activated luminescence system in in-vivo imaging, the system takes an organic molecule with ultrasonic activated luminescence property as a luminescent substance, the ultrasonic activated luminescence system with near-infrared region emission can be constructed, and high-performance in-vivo imaging application is realized.

A transparent luminescent solar concentrator (TLSC) is provided. The TLSC includes a luminophore and a waveguide that guides light emitted from the luminophore. The TLSC has a light utilization efficiency (LUE) of greater than or equal to about 1.

The application discloses a long-life self-powered light source based on a radioisotope, which comprises a reflecting layer, and at least one layer of a mixture of a radioisotope source and a luminophore is coated on the reflecting layer; the radioisotope source is in a powder form, and the luminophore is a low-dimensional material. The light source structure is based on the mixture of the radioisotope source and the luminophore, and a protective layer is additionally designed, so that the light source structure has the advantages of high energy conversion efficiency, safety and economy. The powder radioisotope source and the low-dimensional luminophore can further improve quantum efficiency, reduce cost, reduce weight and simplify a preparation process, so that the light source structure has wide application potential and economic benefits in various application scenarios.

The invention belongs to the technical field of in-vitro diagnosis, and discloses a preparation method of a high-sensitivity chemiluminescent reagent for in-vitro diagnosis, which is characterized in that an electron donating group (methoxyl) and a steric hindrance group (tert-butyl) are introduced on the basis of a traditional luminol structure, so that the electron density and stability of a molecular conjugated system are remarkably enhanced, and the chemiluminescent reagent has high sensitivity. The light-emitting quantum efficiency and the oxidation resistance of the substrate are improved. Meanwhile, Co < 2 + > or Ni < 2 + > is adopted as a transition metal catalytic center and cooperates with a phenol enhancer to construct a two-channel free radical enhancement system, the luminol oxidation luminescence process is effectively accelerated, and the luminescence duration is prolonged. The preparation method of the reagent comprises the following steps: synthesizing a luminol derivative, preparing a metal catalyst solution and a phenol enhancer solution, and mixing according to an optimized ratio. The luminescent system shows high signal-to-noise ratio and excellent repeatability in low-concentration biomarker detection, the lowest detection limit is less than 1pg / mL, and the luminescent system is suitable for high-sensitivity in-vitro immunodiagnosis analysis.

The invention relates to the technical field of electrochemical luminescence analysis, in particular to a signal enhancement type material for rapidly detecting fumonisins B1 and a preparation method and application of an electrochemical luminescence sensor of the signal enhancement type material. The invention provides a novel signal amplification strategy for solving the problems of expensive instruments, complicated operation or insufficient sensitivity and the like in the existing fumonisins B1 detection method. The core lies in that an efficient ternary electrochemical luminescence system is constructed, three-dimensional perovskite quantum dots of a core-shell structure and silicon dioxide serve as stable luminous bodies, tripropylamine serves as a co-reaction agent, and niobium-doped copper bismuthate loaded gold nanoparticles are innovatively introduced to serve as a composite co-reaction accelerant. The accelerant plays dual functions: niobium-doped copper bismuthate is used as a p-type semiconductor, the conductivity is improved through niobium doping, and the oxidation process of tripropylamine is efficiently catalyzed; the gold nanoparticles loaded on the surface greatly enhance the electrochemical luminescence intensity of the three-dimensional perovskite quantum dot and silicon dioxide core-shell structure through a local surface plasma resonance effect. And through the synergistic effect of the two, obvious amplification of an electrochemical luminescence signal is realized.

The invention relates to a security feature for a security and / or value document which comprises a mixture of electrically conductive field displacement elements which are electrically insulated within the security or value document, and a zinc sulfide luminophore in the form of particles, which mixture is applied to a security and / or value document by means of a printing technology. The zinc sulfide luminophore has the general chemical formula ZnS: Cux, My, Xz. Here, M represents one or more elements from a group comprising the chemical elements Co, In and Ni; X represents one or more elements from a group comprising the halides F, Cl, Br and I; 0<x≤0.002; 0<y≤0.00015; and 0≤z≤0.00050. The particles each have cubic phase fractions and hexagonal phase fractions, the zinc sulfide luminophore emitting a first luminescent radiation in the spectral range between 580 nm and 780 nm in the event of excitation by an electrical field, and the zinc sulfide luminophore emitting a second luminescent radiation in the visible spectral range in the event of thermal stimulation and preceding excitation by means of UV radiation. Furthermore, a security and / or value document having a security feature and a method for detection and / or verification of a security feature having a luminophore are provided.