CN110940685A - Organic electroluminescent material, organic electroluminescent device and control method - Google Patents
Organic electroluminescent material, organic electroluminescent device and control method Download PDFInfo
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Abstract
The invention belongs to the technical field of electroluminescent materials, and discloses an organic electroluminescent material, an organic electroluminescent device and a control method, wherein the organic electroluminescent material and the organic electroluminescent device comprise: the device comprises a power supply module, a current detection module, a luminosity detection module, a material detection module, a central control module, an energy consumption calculation module, a service life prediction module, a performance evaluation module and a display module. The method for detecting the luminescent material by the material detection module is simple, has low cost, can reduce the detection error of the luminescent material, eliminate experiment interference, improve experiment efficiency and provide reliable basis for the analysis of the components and the luminescent performance of the luminescent material; meanwhile, the service life prediction module can accurately predict the wear service life of the luminescent material according to a small amount of test data, so that the aim of saving test time and cost is fulfilled, and the test efficiency and the test economy are improved.
Description
Technical Field
The invention belongs to the technical field of electroluminescent materials, and particularly relates to an organic electroluminescent material, an organic electroluminescent device and a control method.
Background
Currently, the closest prior art: luminescent materials refer to materials of matter that are capable of absorbing energy in some way, converting it into light radiation (non-equilibrium radiation). The process of absorbing energy in some way inside a substance and converting it into light radiation (non-equilibrium radiation) is called luminescence. In practical applications, a solid that emits light when excited by the outside is referred to as a light-emitting material. They can be used in the form of powder, single crystal, thin film or amorphous, and the main components are rare earth metal compounds and semiconductor materials, which are closely related to nonferrous metals. However, the detection error of the existing electroluminescent material and organic electroluminescent device to the material is large; meanwhile, the life of the luminescent material cannot be accurately predicted.
In summary, the problems of the prior art are as follows: the detection error of the existing electroluminescent material and organic electroluminescent device to the material is large; meanwhile, the life of the luminescent material cannot be accurately predicted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an organic electroluminescent material, an organic electroluminescent device and a control method.
The invention is realized in such a way that the control method of the organic electroluminescent material and the organic electroluminescent device comprises the following steps:
the first step, an electroluminescent material and an organic electroluminescent device are provided by a power supply module; detecting current data of the electroluminescent material and the organic electroluminescent device by using an ammeter through a current detection module; detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device by using a light intensity sensor through a luminosity detection module; detecting the components and the luminescence property of the electroluminescent material and the organic electroluminescent device by using detection equipment through a material detection module;
secondly, the central control module calculates the energy consumption of the electroluminescent material and the organic electroluminescent device by using a calculation program through an energy consumption calculation module; testing and predicting the service life of the electroluminescent material and the organic electroluminescent device by using testing equipment through a service life predicting module;
thirdly, evaluating the performances of the electroluminescent material and the organic electroluminescent device by utilizing an evaluation program through a performance evaluation module;
and fourthly, displaying the detected data information of the current, the illumination intensity, the components, the luminous property, the energy consumption, the service life and the performance by using a display through a display module.
Further, the control method of the organic electroluminescent material and the organic electroluminescent device further comprises the following steps: the current detection method comprises the following steps:
(1) sampling the detected large current signal in real time through the three current sampling units and outputting a small current signal, wherein the large current signal is a current signal output by the power distribution cabinet, and the small current signal is a current signal obtained by reducing the large current signal according to a transformation ratio;
(2) converting the small current signal into a digital signal through a conversion unit;
(3) and determining a current calculation formula by the processing unit based on the circuit information, and calculating by the current calculation formula and the digital signal to obtain a current value, wherein the current value is detected by the current detection module, and the circuit information comprises a sampling resistance value, a variable ratio value, a range value of sampling voltage amplified by N times through gain and a W-bit unsigned number corresponding to the current value input processing unit in the three current sampling units.
Further, the control method of the organic electroluminescent material and the organic electroluminescent device further comprises the following steps: a photometric detection method comprising:
when the light intensity sensor is started, the light intensity sensor converts a detected light intensity signal into a current signal and inputs the current signal into the signal conditioning circuit;
the signal conditioning circuit converts the current signal into a voltage value which can be processed and converts the voltage value into a unified voltage signal according to a specified standard value, namely normalization processing, wherein the voltage is normally normalized to 0-5V from-25V to 25V;
the normalized voltage signal enters the data processing controller through a multi-core terminal and a 12C bus in the data processing unit; the data processing controller firstly converts the received voltage analog signals into digital signals, then compares and calculates corresponding measured values, and then displays the corresponding measured values on a display screen.
Further, the control method of the organic electroluminescent material and the organic electroluminescent device further comprises the following steps: the material detection method comprises the following steps:
(1) testing whether the luminescent material emits light normally or not through the testing equipment; if the light is emitted normally, the light is used as a luminescent material to be detected; otherwise, continuing the test from the new selection;
(2) taking a luminescent material to be detected, and grinding;
(3) XRD detection is carried out on the luminescent material: placing the ground luminescent material in an XRD detector for detection to obtain an XRD (X-ray diffraction) spectrum of the luminescent material, and comparing the XRD spectrum with a standard card to determine the matrix component of the luminescent material;
(4) and (3) carrying out excitation spectrum detection on the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for excitation spectrum detection to obtain an excitation spectrum of the luminescent material;
(5) emission spectrum detection of the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for emission spectrum detection to obtain an emission spectrum of the luminescent material;
(6) and analyzing the excitation spectrum and the emission spectrum of the luminescent material to determine the doping component and the luminescent property of the luminescent material.
Further, the control method of the organic electroluminescent material and the organic electroluminescent device further comprises the following steps: the life prediction method comprises the following steps:
1) the solar panel supplies power to the luminescent material;
2) setting parameters of test conditions through test equipment;
3) acquiring data of the friction performance of the luminescent material in the test condition and the failure critical hardness of the luminescent material;
4) processing the data to obtain a variation relation of the friction performance of the luminescent material;
5) calculating the wear life of the luminescent material according to the change relation and the failure critical hardness;
the parameters of the test conditions include: stress applied to the luminescent material, ambient temperature, and test time;
the friction performance comprises the hardness retention rate and the stress retention rate at definite elongation of the luminescent material; the wear life is measured by the stress retention at elongation of the luminescent material; wherein the wear life is a time required for the stress retention at elongation of the luminescent material to decrease from 100% to 50%;
the failure critical hardness is the hardness of the luminescent material when the retention rate of the stress at definite elongation reaches 50%.
Another object of the present invention is to provide an organic electroluminescent material and an organic electroluminescent device implementing the method for controlling the organic electroluminescent material and the organic electroluminescent device, the organic electroluminescent material and the organic electroluminescent device including:
the power supply module is connected with the central control module and is used for providing electroluminescent materials and organic electroluminescent devices;
the current detection module is connected with the central control module and is used for detecting current data of the electroluminescent material and the organic electroluminescent device through an ammeter;
the luminosity detection module is connected with the central control module and used for detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device through the light intensity sensor;
the material detection module is connected with the central control module and is used for detecting the components and the light-emitting property of the electroluminescent material and the organic electroluminescent device through detection equipment;
the central control module is connected with the power supply module, the current detection module, the luminosity detection module, the material detection module, the energy consumption calculation module, the service life prediction module, the performance evaluation module and the display module and is used for controlling the normal work of each module through the single chip microcomputer;
the energy consumption calculation module is connected with the central control module and is used for calculating the energy consumption of the electroluminescent material and the organic electroluminescent device through a calculation program;
the service life prediction module is connected with the central control module and used for testing and predicting the service lives of the electroluminescent material and the organic electroluminescent device through the testing equipment;
the performance evaluation module is connected with the central control module and is used for evaluating the performance of the electroluminescent material and the organic electroluminescent device through an evaluation program;
and the display module is connected with the central control module and is used for displaying the detected current, illumination intensity, components, luminescence property, energy consumption, service life and performance data information through the display.
The invention also aims to provide application of the organic electroluminescent material and the control method of the organic electroluminescent device in the electroluminescent material.
The invention has the advantages and positive effects that: the method for detecting the luminescent material by the material detection module is simple, has low cost, can reduce the detection error of the luminescent material, eliminate experiment interference, improve experiment efficiency and provide reliable basis for the analysis of the components and the luminescent performance of the luminescent material; meanwhile, the service life prediction module can accurately predict the wear service life of the luminescent material according to a small amount of test data, so that the aim of saving test time and cost is fulfilled, and the test efficiency and the test economy are improved.
Drawings
Fig. 1 is a block diagram of organic electroluminescent materials and organic electroluminescent devices provided in an embodiment of the present invention.
In the figure: 1. a power supply module; 2. a current detection module; 3. a luminosity detection module; 4. a material detection module; 5. a central control module; 6. an energy consumption calculation module; 7. a life prediction module; 8. a performance evaluation module; 9. and a display module.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an organic electroluminescent material and an organic electroluminescent device provided in an embodiment of the present invention include: the device comprises a power supply module 1, a current detection module 2, a luminosity detection module 3, a material detection module 4, a central control module 5, an energy consumption calculation module 6, a service life prediction module 7, a performance evaluation module 8 and a display module 9.
The power supply module 1 is connected with the central control module 5 and is used for providing electroluminescent materials and organic electroluminescent devices;
the current detection module 2 is connected with the central control module 5 and is used for detecting current data of the electroluminescent material and the organic electroluminescent device through an ammeter;
the luminosity detection module 3 is connected with the central control module 5 and used for detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device through the light intensity sensor;
the material detection module 4 is connected with the central control module 5 and is used for detecting the components and the light-emitting property of the electroluminescent material and the organic electroluminescent device through detection equipment;
the central control module 5 is connected with the power supply module 1, the current detection module 2, the luminosity detection module 3, the material detection module 4, the energy consumption calculation module 6, the service life prediction module 7, the performance evaluation module 8 and the display module 9 and is used for controlling the normal work of each module through a single chip microcomputer;
the energy consumption calculation module 6 is connected with the central control module 5 and is used for calculating the energy consumption of the electroluminescent material and the organic electroluminescent device through a calculation program;
the service life prediction module 7 is connected with the central control module 5 and used for testing and predicting the service lives of the electroluminescent material and the organic electroluminescent device through test equipment;
the performance evaluation module 8 is connected with the central control module 5 and is used for evaluating the performance of the electroluminescent material and the organic electroluminescent device through an evaluation program;
and the display module 9 is connected with the central control module 5 and is used for displaying the detected current, illumination intensity, components, luminescence property, energy consumption, service life and performance data information through a display.
The current detection method of the current detection module 2 provided by the invention comprises the following steps:
(1) sampling the detected large current signal in real time through the three current sampling units and outputting a small current signal, wherein the large current signal is a current signal output by the power distribution cabinet, and the small current signal is a current signal obtained by reducing the large current signal according to a transformation ratio;
(2) converting the small current signal into a digital signal through a conversion unit;
(3) and determining a current calculation formula by the processing unit based on the circuit information, and calculating by the current calculation formula and the digital signal to obtain a current value, wherein the current value is detected by the current detection module, and the circuit information comprises a sampling resistance value, a variable ratio value, a range value of sampling voltage amplified by N times through gain and a W-bit unsigned number corresponding to the current value input processing unit in the three current sampling units.
The luminosity detection module 3 provided by the invention has the following luminosity detection method:
(1) when the light intensity sensor is started, the light intensity sensor converts a detected light intensity signal into a current signal and inputs the current signal into the signal conditioning circuit;
(2) the signal conditioning circuit converts the current signal into a voltage value which can be processed and converts the voltage value into a unified voltage signal according to a specified standard value, namely normalization processing, wherein the voltage is normally normalized to 0-5V from-25V to 25V;
(3) the normalized voltage signal enters the data processing controller through a multi-core terminal and a 12C bus in the data processing unit; the data processing controller firstly converts the received voltage analog signals into digital signals, then compares and calculates corresponding measured values, and then displays the corresponding measured values on a display screen.
The detection method of the material detection module 4 provided by the invention is as follows:
(1) testing whether the luminescent material emits light normally or not through the testing equipment; if the light is emitted normally, the light is used as a luminescent material to be detected; otherwise, continuing the test from the new selection;
(2) taking a luminescent material to be detected, and grinding;
(3) XRD detection is carried out on the luminescent material: placing the ground luminescent material in an XRD detector for detection to obtain an XRD (X-ray diffraction) spectrum of the luminescent material, and comparing the XRD spectrum with a standard card to determine the matrix component of the luminescent material;
(4) and (3) carrying out excitation spectrum detection on the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for excitation spectrum detection to obtain an excitation spectrum of the luminescent material;
(5) emission spectrum detection of the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for emission spectrum detection to obtain an emission spectrum of the luminescent material;
(6) and analyzing the excitation spectrum and the emission spectrum of the luminescent material to determine the doping component and the luminescent property of the luminescent material.
The working parameters of the fluorescence spectrometer provided by the invention are as follows:
A150W xenon lamp was used as the excitation light source, an R928 photomultiplier tube was used as the detector, the resolution was 1.0nm, and the scanning speed was 2400 nm/min.
The life prediction module 7 provided by the invention has the following prediction method:
1) the solar panel supplies power to the luminescent material;
2) setting parameters of test conditions through test equipment;
3) acquiring data of the friction performance of the luminescent material in the test condition and the failure critical hardness of the luminescent material;
4) processing the data to obtain a variation relation of the friction performance of the luminescent material;
5) and calculating the wear life of the luminescent material according to the change relation and the failure critical hardness.
The parameters of the test conditions provided by the present invention include: stress applied to the luminescent material, ambient temperature, and test time.
The friction performance provided by the invention comprises the hardness retention rate and the stress retention rate at definite elongation of the luminescent material; the wear life is measured by the stress retention at elongation of the luminescent material; wherein the wear life is a time required for the stress retention at elongation of the luminescent material to decrease from 100% to 50%.
The failure critical hardness provided by the invention is the hardness of the luminescent material when the retention rate of the stress at definite elongation reaches 50%.
When the invention works, firstly, the power supply module 1 is used as an electroluminescent material and an organic electroluminescent device; detecting current data of the electroluminescent material and the organic electroluminescent device by using an ammeter through a current detection module 2; detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device by using a light intensity sensor through a luminosity detection module 3; detecting the components and the luminescence property of the electroluminescent material and the organic electroluminescent device by using detection equipment through a material detection module 4; secondly, the central control module 5 calculates the energy consumption of the electroluminescent material and the organic electroluminescent device by using a calculation program through an energy consumption calculation module 6; testing and predicting the service life of the electroluminescent material and the organic electroluminescent device by using testing equipment through a service life predicting module 7; then, the performance of the electroluminescent material and the organic electroluminescent device is evaluated by a performance evaluation module 8 by utilizing an evaluation program; finally, the display module 9 is used for displaying the detected data information of current, illumination intensity, components, luminescence property, energy consumption, service life and performance.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A control method of an organic electroluminescent material and an organic electroluminescent device is characterized in that the control method of the organic electroluminescent material and the organic electroluminescent device comprises the following steps:
the first step, an electroluminescent material and an organic electroluminescent device are provided by a power supply module; detecting current data of the electroluminescent material and the organic electroluminescent device by using an ammeter through a current detection module; detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device by using a light intensity sensor through a luminosity detection module; detecting the components and the luminescence property of the electroluminescent material and the organic electroluminescent device by using detection equipment through a material detection module;
secondly, the central control module calculates the energy consumption of the electroluminescent material and the organic electroluminescent device by using a calculation program through an energy consumption calculation module; testing and predicting the service life of the electroluminescent material and the organic electroluminescent device by using testing equipment through a service life predicting module;
thirdly, evaluating the performances of the electroluminescent material and the organic electroluminescent device by utilizing an evaluation program through a performance evaluation module;
and fourthly, displaying the detected data information of the current, the illumination intensity, the components, the luminous property, the energy consumption, the service life and the performance by using a display through a display module.
2. The method for controlling the organic electroluminescent material and the organic electroluminescent device according to claim 1, wherein the method for controlling the organic electroluminescent material and the organic electroluminescent device further comprises: the current detection method comprises the following steps:
(1) sampling the detected large current signal in real time through the three current sampling units and outputting a small current signal, wherein the large current signal is a current signal output by the power distribution cabinet, and the small current signal is a current signal obtained by reducing the large current signal according to a transformation ratio;
(2) converting the small current signal into a digital signal through a conversion unit;
(3) and determining a current calculation formula by the processing unit based on the circuit information, and calculating by the current calculation formula and the digital signal to obtain a current value, wherein the current value is detected by the current detection module, and the circuit information comprises a sampling resistance value, a variable ratio value, a range value of sampling voltage amplified by N times through gain and a W-bit unsigned number corresponding to the current value input processing unit in the three current sampling units.
3. The method for controlling the organic electroluminescent material and the organic electroluminescent device according to claim 1, wherein the method for controlling the organic electroluminescent material and the organic electroluminescent device further comprises: a photometric detection method comprising:
when the light intensity sensor is started, the light intensity sensor converts a detected light intensity signal into a current signal and inputs the current signal into the signal conditioning circuit;
the signal conditioning circuit converts the current signal into a voltage value which can be processed and converts the voltage value into a unified voltage signal according to a specified standard value, namely normalization processing, wherein the voltage is normally normalized to 0-5V from-25V to 25V;
the normalized voltage signal enters the data processing controller through a multi-core terminal and a 12C bus in the data processing unit; the data processing controller firstly converts the received voltage analog signals into digital signals, then compares and calculates corresponding measured values, and then displays the corresponding measured values on a display screen.
4. The method for controlling the organic electroluminescent material and the organic electroluminescent device according to claim 1, wherein the method for controlling the organic electroluminescent material and the organic electroluminescent device further comprises: the material detection method comprises the following steps:
(1) testing whether the luminescent material emits light normally or not through the testing equipment; if the light is emitted normally, the light is used as a luminescent material to be detected; otherwise, continuing the test from the new selection;
(2) taking a luminescent material to be detected, and grinding;
(3) XRD detection is carried out on the luminescent material: placing the ground luminescent material in an XRD detector for detection to obtain an XRD (X-ray diffraction) spectrum of the luminescent material, and comparing the XRD spectrum with a standard card to determine the matrix component of the luminescent material;
(4) and (3) carrying out excitation spectrum detection on the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for excitation spectrum detection to obtain an excitation spectrum of the luminescent material;
(5) emission spectrum detection of the luminescent material: placing the ground luminescent material in a fluorescence spectrometer for emission spectrum detection to obtain an emission spectrum of the luminescent material;
(6) and analyzing the excitation spectrum and the emission spectrum of the luminescent material to determine the doping component and the luminescent property of the luminescent material.
5. The method for controlling the organic electroluminescent material and the organic electroluminescent device according to claim 1, wherein the method for controlling the organic electroluminescent material and the organic electroluminescent device further comprises: the life prediction method comprises the following steps:
1) the solar panel supplies power to the luminescent material;
2) setting parameters of test conditions through test equipment;
3) acquiring data of the friction performance of the luminescent material in the test condition and the failure critical hardness of the luminescent material;
4) processing the data to obtain a variation relation of the friction performance of the luminescent material;
5) and calculating the wear life of the luminescent material according to the change relation and the failure critical hardness.
6. The organic electroluminescent material and the control method of an organic electroluminescent device according to claim 5, wherein the parameters of the test conditions include: stress applied to the luminescent material, ambient temperature, and test time.
7. The organic electroluminescent material and the method for controlling an organic electroluminescent device according to claim 5, wherein the frictional property includes a hardness retention rate and a stress-at-elongation retention rate of the luminescent material; the wear life is measured by the stress retention at elongation of the luminescent material; wherein the wear life is a time required for the stress retention at elongation of the luminescent material to decrease from 100% to 50%.
8. The organic electroluminescent material and the method for controlling an organic electroluminescent device according to claim 5, wherein the critical hardness for failure is a hardness of the luminescent material at which the retention rate of the stress at definite elongation reaches 50%.
9. An organic electroluminescent material and an organic electroluminescent device for implementing the method for controlling the organic electroluminescent material and the organic electroluminescent device according to any one of claims 1 to 8, wherein the organic electroluminescent material and the organic electroluminescent device comprise:
the power supply module is connected with the central control module and is used for providing electroluminescent materials and organic electroluminescent devices;
the current detection module is connected with the central control module and is used for detecting current data of the electroluminescent material and the organic electroluminescent device through an ammeter;
the luminosity detection module is connected with the central control module and used for detecting the illumination intensity data of the electroluminescent material and the organic electroluminescent device through the light intensity sensor;
the material detection module is connected with the central control module and is used for detecting the components and the light-emitting property of the electroluminescent material and the organic electroluminescent device through detection equipment;
the central control module is connected with the power supply module, the current detection module, the luminosity detection module, the material detection module, the energy consumption calculation module, the service life prediction module, the performance evaluation module and the display module and is used for controlling the normal work of each module through the single chip microcomputer;
the energy consumption calculation module is connected with the central control module and is used for calculating the energy consumption of the electroluminescent material and the organic electroluminescent device through a calculation program;
the service life prediction module is connected with the central control module and used for testing and predicting the service lives of the electroluminescent material and the organic electroluminescent device through the testing equipment;
the performance evaluation module is connected with the central control module and is used for evaluating the performance of the electroluminescent material and the organic electroluminescent device through an evaluation program;
and the display module is connected with the central control module and is used for displaying the detected current, illumination intensity, components, luminescence property, energy consumption, service life and performance data information through the display.
10. An organic electroluminescent material as claimed in any one of claims 1 to 8 and a method for controlling an organic electroluminescent device, to be used in the electroluminescent material.
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