CN108461634B - A kind of double-colored organic photodetector - Google Patents
A kind of double-colored organic photodetector Download PDFInfo
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- CN108461634B CN108461634B CN201810288826.0A CN201810288826A CN108461634B CN 108461634 B CN108461634 B CN 108461634B CN 201810288826 A CN201810288826 A CN 201810288826A CN 108461634 B CN108461634 B CN 108461634B
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- probe unit
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- ionic liquid
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/549—Organic PV cells
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Abstract
A kind of double-colored organic photodetector, it is independent to form electric double layer to generate the ionic liquid of displacement current and as the aluminium (Al), golden (Au) and tin indium oxide (ITO) of electrode to first organic working lining, second organic working lining, first organic working lining of connection and the second organic working lining that Different lightwave is long or Different lightwave section is sensitive and in interface, form the first probe unit and the second probe unit；First probe unit includes attachment on a glass substrate as the first aluminium electrode Al of negative electrode, the Au of the first positive electrode, as the first organic working lining and ionic liquid of groundwork substance；Second probe unit includes the attachment Al as the ITO of the second positive electrode, as the second negative electrode, second organic working lining as groundwork substance and ionic liquid on a glass substrate；The first probe unit of ionic liquid system and the second probe unit share.
Description
Technical field
The present invention relates to field of photodetectors, it is specifically a kind of can simultaneously two different wave lengths of standalone probe or difference
Wave band optical signal is integrated with the double-colored photodetector of two sets of independent organic working lining probe units.
Background technique
Organic photodetector is a kind of photocell for using organic matter as photoelectric conversion operation material.
Traditional organic photodetector can only detect the optical signal sensitive to its organic working lining at present, and organic work
Layer is often only sensitive to the optical signal of a certain wave band.Such as to realize the spy to two different wave lengths or different-waveband optical signal
It surveys, then using two organic photodetectors and must be equipped with light-splitting device simultaneously and detected, overall structure size will
It is larger.
Summary of the invention
The present invention in order to overcome the shortcomings of existing organic photodetector, provide one kind can standalone probe two simultaneously not
Co-wavelength or different-waveband optical signal are integrated with the double-colored photodetector of two sets of independent organic working lining probe units.
The double-colored organic photodetector, it is characterised in that: independent long to Different lightwave or Different lightwave Duan Min
First organic working lining, the second organic working lining of sense connect first organic working lining and second organic working lining and at interface
Place forms electric double layer to generate the ionic liquid of displacement current and as the aluminium (Al), golden (Au) and tin indium oxide of electrode
(ITO), the first probe unit and the second probe unit are formed.
First probe unit include attachment on a glass substrate as the first aluminium electrode Al of negative electrode, first just
The Au of electrode, first organic working lining and ionic liquid as groundwork substance.
Second probe unit includes attachment on a glass substrate as the ITO of the second positive electrode, negative as second
The Al of electrode, second organic working lining and ionic liquid as groundwork substance.
First probe unit of ionic liquid system and the second probe unit share.
Double-colored organic photodetector provided by the invention includes two sets independent long to Different lightwave or Different lightwave section
Sensitive organic working lining connects two sets of independent organic working linings and forms electric double layer in interface to generate displacement current
Ionic liquid and aluminium (Al), golden (Au) and tin indium oxide (ITO) as electrode.
Ionic liquid generates displacement electricity to form electric double layer in interface in the introducing of electrode and organic work interlayer
Stream realizes the transmission of interface photoelectric current, overcomes the low problem of organic matter carrier mobility, irradiate incident light can need not
The overlapping region of upper and lower electrode can still generate photoelectric current.
Double-colored organic photodetector includes two sets independent to organic work that Different lightwave is long or Different lightwave section is sensitive
Make layer, connect two sets independent organic working linings and interface form electric double layer thus generate the ionic liquid of displacement current with
And aluminium (Al), golden (Au) and tin indium oxide (ITO) as electrode.Two sets of standalone probe units are superimposed using ionic liquid,
To realize the optical signal of different probe unit response different wave length or different-waveband.The present invention can be to two kinds in luminous energy not
The optical signal of co-wavelength or wave band carries out discrete detection simultaneously.
Compared with prior art, beneficial effects of the present invention: the present invention can be to two kinds of different wave lengths or difference in luminous energy
The optical signal of wave band carries out discrete detection simultaneously.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of double-colored organic photodetector of the present invention.
Fig. 2 is a kind of schematic diagram of first probe unit of double-colored organic photodetector of the present invention.
Fig. 3 is a kind of schematic diagram of second probe unit of double-colored organic photodetector of the present invention.
Fig. 4 is a kind of equivalent circuit of double-colored organic photodetector of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is a kind of structural schematic diagram of double-colored organic photodetector of the present invention.One kind as shown in Figure 1 is double-colored organic
Photodetector includes two sets independent to organic working lining that Different lightwave is long or Different lightwave section is sensitive, connects two sets independently
Organic working lining and form electric double layer in interface to generating the ionic liquid of displacement current and as the aluminium of electrode
(Al), golden (Au) and tin indium oxide (ITO).
The double-colored organic photodetector, it is characterised in that: independent long to Different lightwave or Different lightwave Duan Min
First organic working lining, the second organic working lining of sense connect first organic working lining and second organic working lining and at interface
Place forms electric double layer to generate the ionic liquid of displacement current and as the aluminium (Al), golden (Au) and tin indium oxide of electrode
(ITO), the first probe unit and the second probe unit are formed.
First probe unit include attachment on a glass substrate as the first aluminium electrode Al of negative electrode, first just
The Au of electrode, first organic working lining and ionic liquid as groundwork substance.
Second probe unit includes attachment on a glass substrate as the ITO of the second positive electrode, negative as second
The Al of electrode, second organic working lining and ionic liquid as groundwork substance.
First probe unit of ionic liquid system and the second probe unit share.
A kind of working principle of double-colored organic photodetector of the present invention:
The working principle diagram of first probe unit is as shown in Fig. 2, incident light makes the organic work of the first probe unit
Separation of charge occurs in layer, hole migrates downward into, and electronics migrates upwards.Electronics enters aluminium electrode 1 in the form of conducting electric current.It is empty
Cave moves to the interface of organic working lining and ionic liquid, and anion under the action of potential in ionic liquid will be moved to
The interface forms electric double layer with hole in turn, and the formation of electric double layer will generate displacement current and complete photoelectric current in organic work
Transmission between layer and ionic liquid.Cation will move to gold electrode and ionic liquid in ionic liquid under the action of photoelectric current
The interface of body, electronics under the action of potential in aluminium electrode 1 will be transferred on gold electrode through external circuit, and in gold electrode and
The interface of ionic liquid and cation form electric double layer, and the formation of the interface electric double layer will generate displacement current and complete light
Transmission of the electric current between ionic liquid and gold electrode, at this time in external circuit by generate from gold electrode to aluminium electrode 1 electric current.Dispatch from foreign news agency
When road is closed, the size of current strength will change with the variation of incident optical signal intensity in external circuit.
The working principle diagram of the optical detection second unit is as shown in figure 3, incident light makes the organic work of the second probe unit
Make that separation of charge occurs in layer, hole migrates downward into, and electronics migrates upwards.Hole enters ITO electrode in the form of conducting electric current.
To the interface of organic working lining and ionic liquid, cation under the action of potential in ionic liquid will movement for electron transfer
To the interface and then and electronically form electric double layer, the formation of electric double layer will generate displacement current and complete photoelectric current in organic work
Make the transmission between layer and ionic liquid.Under the action of photoelectric current anion will be moved in ionic liquid aluminium electrode 2 and from
The interface of sub- liquid, hole under the action of potential in ITO electrode will be transferred in aluminium electrode 2 through external circuit, and in aluminium
The interface of electrode 2 and ionic liquid and anion form electric double layer, and the formation of the interface electric double layer will generate displacement current
And transmission of the photoelectric current between ionic liquid and gold electrode is completed, it will be generated 2 from ITO electrode to aluminium electrode in external circuit at this time
Electric current.When external circuit is closed, the size of current strength will change with the variation of incident optical signal intensity in external circuit.
It further illustrates, above-mentioned two probe unit works simultaneously.
The double-colored organic photodetector can be equivalent to two photronic superpositions, as shown in Figure 4.
In conjunction with attached drawing 1-4, the present invention can use the superposition that ionic liquid realizes two sets of standalone probe units, using two sets
The independent organic working lining sensitive to Different lightwave length or Different lightwave section, completes to two kinds of different wave lengths or different-waveband
Discrete detection while optical signal.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention is also and in art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (1)
1. double-colored organic photodetector, it is characterised in that: independent long to Different lightwave or sensitive Different lightwave section first
Organic working lining, second organic working lining, first organic working lining of connection and second organic working lining are simultaneously formed double in interface
Electric layer is to generate the ionic liquid of displacement current and as the aluminium (Al), golden (Au) and tin indium oxide (ITO) of electrode, composition
First probe unit and the second probe unit；
First probe unit includes attachment on a glass substrate as the first aluminium electrode Al, the first positive electrode of negative electrode
Au, first organic working lining and ionic liquid as groundwork substance；
Second probe unit includes attachment on a glass substrate as the ITO of the second positive electrode, as the second negative electrode
Al, second organic working lining and ionic liquid as groundwork substance；
First probe unit of ionic liquid system and the second probe unit share.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288826.0A CN108461634B (en) | 2018-04-03 | 2018-04-03 | A kind of double-colored organic photodetector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288826.0A CN108461634B (en) | 2018-04-03 | 2018-04-03 | A kind of double-colored organic photodetector |
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| Publication Number | Publication Date |
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| CN108461634A CN108461634A (en) | 2018-08-28 |
| CN108461634B true CN108461634B (en) | 2019-10-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140291590A1 (en) * | 2013-03-28 | 2014-10-02 | The Board Of Regents Of The University Of Texas System | High performance light emitting devices from ionic transition metal complexes |
| CN105633283A (en) * | 2016-03-14 | 2016-06-01 | 深圳大学 | Transparent and flexible photoelectric sensor and preparation method thereof |
| CN208078028U (en) * | 2018-04-03 | 2018-11-09 | 浙江工业大学 | A kind of double-colored organic photodetector |
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