CN103645225A - Electrochemical testing device for organic semiconductor - Google Patents
Electrochemical testing device for organic semiconductor Download PDFInfo
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- CN103645225A CN103645225A CN201310655356.4A CN201310655356A CN103645225A CN 103645225 A CN103645225 A CN 103645225A CN 201310655356 A CN201310655356 A CN 201310655356A CN 103645225 A CN103645225 A CN 103645225A
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Abstract
The invention discloses an electrochemical testing device for an organic semiconductor. The device comprises a working electrode assembly, a reference electrode assembly, an electrochemical glass reaction tank assembly and an electrochemical glass reaction tank sealing assembly, wherein the working electrode assembly comprises an O-shaped ring, a circular glass carbon plate, a copper frame fixing platform, a bolt, a copper frame and a screw; the reference electrode assembly comprises a reference electrode, a salt bridge and a rubber plug with a hole; the bolt which is fixedly arranged on a rectangular groove in the bottom of the copper frame fixing platform is rotated to tightly press the circular glass carbon plate which is coated with an organic semiconductor material on the O-shaped ring in a spinning manner; the tail end of the salt bridge can be infinitely close to the circular glass carbon plate which is coated with the organic semiconductor material. With the adoption of the electrochemical testing device for the organic semiconductor, the organic semiconductor material which can be dissolved or not dissolved into an electrolyte solution is prepared into a film by a spin coating method to be fixedly arranged on the surface of a circular glass carbon electrode; the modified glass carbon electrode is used as a working electrode to finish a cyclic voltammetry characteristic test, and the reliability and the scientificity of experimental data are greatly improved.
Description
Technical field
The invention belongs to technical field of electrochemistry, more specifically, relate to a kind of organic semiconductor electrochemical testing device.
Background technology
ORGANIC ELECTROLUMINESCENCE DISPLAYS, claim again Organic Light Emitting Diode or organic light emitting display (OLED), it has all solid state, active illuminating, high brightness, high-contrast, ultra-thin, low-cost, low-power consumption, without angle limitations and the plurality of advantages such as operating temperature range is wide, be considered to the technology of most possible replacement liquid crystal display.Organic solar batteries is that all or part of constituent is organism, the solar cell that adopts conducting polymer or little molecule to carry out light absorption and electric charge transfer, the main energy gap (E that further changes organic molecule by changing the equimolecular length of polymkeric substance and functional group
g) improve battery efficiency.Generally speaking, the molar extinction coefficient of organic compound is generally higher, as long as therefore have a small amount of organism just can absorb a large amount of light.The photoelectric transformation efficiency of organic solar batteries surpasses 10% at present.Organism has the features such as cheap, flexible, makes it aspect photovoltaic application, account for and have great advantage.
In organic semiconducting materials, its highest occupied molecular orbital energy level (HOMO energy level is also ionization energy), corresponding to the energy of top of valence band; Lowest unoccupied molecular orbital energy level (lumo energy is also electron affinity), corresponding to the energy at the bottom of conduction band, organic semi-conductor galvanochemistry energy gap (Eg) is the poor of HOMO and lumo energy, wherein HOMO and lumo energy and energy gap E
gbe the basic parameter of setting forth organic semiconducting materials working mechanism, in order to study working mechanism, application and the production of Organic Light Emitting Diode and organic solar batteries, the band structure parameter testing of organic semiconducting materials and analysis become essential means.
In conventional several method of testings, ultraviolet spectrum absorption process can only obtain band gap magnitude E
g, and with actual energy gap E
gphase ratio error is larger; Although Quantitative Calculation Method can obtain HOMO and the band gap magnitude E of material simultaneously
g, but be only applicable to material simple in structure; In addition, photoelectron emissions analysis of spectrum also can be used for the sign of HOMO, but this quasi-instrument is expensive, is not yet widely used.By contrast, electrochemical cyclic voltammetry can obtain HOMO and lumo energy and the band gap magnitude E of organic semiconducting materials simultaneously
g, and data are more scientific, and required experimental apparatus is cheap, simple to operate, easy to use, is therefore used widely.In order to realize mensuration and the analysis of electrochemical cyclic voltammetry to organic semiconducting materials band structure parameter, need the organic semiconductor electrochemical testing device of a set of complete science.
In existing organic semiconductor electro-chemical test system, mostly adopt organic semiconductor to be dissolved in electrolyte solution, the experimental program that the glass-carbon electrode of take is working electrode is tested and is analyzed.In fact in organic solar batteries and organic luminescent device, organic semiconductor is all to exist with form of film, therefore, the method that adopts organic semiconductor to be dissolved in electrolyte solution is carried out cyclic voltammetry test and can be caused larger experimental error, affects the reliability of data.
Summary of the invention
Above defect or Improvement requirement for prior art, the invention provides a kind of organic semiconductor electrochemical testing device, organic semiconducting materials is made to film with spin-coating method and carry out cyclic voltammetry characteristic test, to solve the technical matters that existing proving installation experimental error is large, data reliability is not enough.
The technical solution adopted for the present invention to solve the technical problems is, a kind of organic semiconductor electrochemical testing device is provided, comprise galvanochemistry glass reaction pond assembly and galvanochemistry glass reaction pond seal assembly, galvanochemistry glass reaction pond assembly is used for holding electrolytic solution, galvanochemistry glass reaction pond seal assembly is for sealing galvanochemistry glass reaction pond assembly, also comprise working electrode assembly and contrast electrode assembly
Described working electrode assembly comprises O type circle, circular glass carbon plate, copper frame fixed station, bolt, copper frame, screw, circular glass carbon plate is fixed by screws in the circular trough of copper frame section, on circular glass carbon plate, spin coating has organic semiconducting materials as working electrode, rotation is assemblied in the bolt on copper frame fixed station bottom rectangle groove, circular glass carbon plate is pressed on O type circle, and O type circle is fixed on assembly one side grinding mouth place, galvanochemistry glass reaction pond and contacts with electrolytic solution;
Contrast electrode assembly comprises contrast electrode, salt bridge and rubber stopper with holes, contrast electrode inserts in the middle circular hole of rubber stopper with holes, rubber stopper with holes is arranged on the round mouth of salt bridge, salt bridge is arranged on the assembly opposite side ground interface of galvanochemistry glass reaction pond, makes the unlimited circular glass carbon plate near scribbling organic semiconducting materials of salt bridge end.
In organic semiconductor electrochemical testing device of the present invention, described galvanochemistry glass reaction pond assembly comprises galvanochemistry glass reaction pond and is arranged on the nitrogen access equipment of side, galvanochemistry glass reaction pond.
In organic semiconductor electrochemical testing device of the present invention, described galvanochemistry glass reaction pond seal assembly comprises galvanochemistry glass reaction pond gland bonnet, exhaust apparatus, rubber stopper, to electrode, galvanochemistry glass reaction pond gland bonnet is arranged on top, galvanochemistry glass reaction pond, exhaust apparatus is installed on the first round mouth of galvanochemistry glass reaction pond gland bonnet, electrode is arranged on the second round mouth of galvanochemistry glass reaction pond gland bonnet, the 3rd round mouth of rubber stopper sealed electrochemical glass reaction pond gland bonnet is standby.
In organic semiconductor electrochemical testing device of the present invention, the pin on described copper frame is fine copper pin and keeps up.
In organic semiconductor electrochemical testing device of the present invention, described rubber stopper external diameter is slightly larger than the round mouth of salt bridge, for sealing the round mouth of salt bridge.
In organic semiconductor electrochemical testing device of the present invention, described copper frame fixed station and screw are polytetrafluoroethylmaterial material.
In organic semiconductor electrochemical testing device of the present invention, described galvanochemistry glass reaction pond and nitrogen access equipment, galvanochemistry glass reaction pond and galvanochemistry glass reaction pond gland bonnet, between electrode, exhaust apparatus, rubber stopper and galvanochemistry glass reaction pond gland bonnet, all adopt ground to be connected.
In organic semiconductor electrochemical testing device of the present invention, described the platinum filament of electrode is connected with soldering with copper wire, copper wire is encapsulated in the glass tube of electrode, and only by platinum filament, the electrolytic solution in galvanochemistry glass reaction pond contacts.
Therefore, the present invention can obtain following beneficial effect: the bolt that rotation is assemblied on copper frame fixed station bottom rectangle groove can have spin coating the circular glass carbon plate of organic semiconducting materials to be pressed on O type circle, both guaranteed the sealing of work, can guarantee again effective contact area of constant working electrode and electrolytic solution, and make the unlimited circular glass carbon plate near scribbling organic semiconducting materials of salt bridge end, guarantee that contrast electrode and working electrode, as far as possible near to reduce voltage drop, have reduced the systematic error of experiment.By the present invention, designed a kind of fixing and thrust unit of circular glass carbon plate working electrode of easy science, for organic semiconducting materials solvable or that be insoluble to electrolyte solution, all can adopt spin coating method to prepare film forming and be fixed on disk glass-carbon electrode surface, using adorned glass-carbon electrode as working electrode, complete cyclic voltammetry characteristic test, greatly improved reliability and the science of experimental data.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the front elevation of organic semiconductor electrochemical testing device schematic diagram of the present invention;
Fig. 2 is the vertical view of organic semiconductor electrochemical testing device schematic diagram of the present invention;
Fig. 3 is the side view of organic semiconductor electrochemical testing device schematic diagram of the present invention;
Fig. 4 is the DFTBT molecule cyclic voltammetry curve map that utilizes organic semiconductor electrochemical testing device test of the present invention to obtain;
Fig. 5 is the P1 molecule cyclic voltammetry curve map that utilizes organic semiconductor electrochemical testing device test of the present invention to obtain;
Fig. 6 is ferrocene cyclic voltammetry curve map;
Fig. 7 is organic solar batteries semiconductor material DFTBT molecular structure;
Fig. 8 is DSSC semiconductor material P1 molecular structure of dye figure.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.In addition,, in each embodiment of described the present invention, involved technical characterictic just can not combine mutually as long as do not form each other conflict.
As shown in Figure 1, Figure 2 and Figure 3, organic semiconducting materials electrochemical testing device of the present invention comprises working electrode assembly, contrast electrode assembly, galvanochemistry glass reaction pond assembly, galvanochemistry glass reaction pond seal assembly, wherein galvanochemistry glass reaction pond assembly is used for holding electrolytic solution, galvanochemistry glass reaction pond seal assembly is for sealing galvanochemistry glass reaction pond assembly
Working electrode assembly comprises O type circle 3, circular glass carbon plate 4, copper frame fixed station 5, bolt 6, copper frame 7, screw 8, and copper frame fixed station 5 and screw 8 are all used polytetrafluoroethylmaterial material processing and fabricating; Circular glass carbon plate 4 is fixed on by screw 8 in the circular trough of copper frame 7 sections, and the pin on copper frame 7 is fine copper pin and keeps up; On circular glass carbon plate 4, spin coating has organic semiconducting materials as working electrode, rotation is assemblied in the bolt 6 on copper frame fixed station 5 bottom rectangle grooves, circular glass carbon plate 4 is pressed on O type circle 3, and O type circle 3 is fixed on connector place, assembly side, galvanochemistry glass reaction pond and contacts with electrolytic solution; By the circular glass carbon plate 4 as working electrode is pressed on O type circle 3, both guaranteed the sealing of interface, guaranteed again effective contact area of constant working electrode and electrolytic solution;
Contrast electrode assembly comprises contrast electrode 1, salt bridge 2 and rubber stopper with holes 13, contrast electrode 1 inserts in the middle circular hole of rubber stopper 13 with holes, rubber stopper 13 with holes is arranged on the round mouth of salt bridge 2 and external diameter is slightly larger than the round mouth of salt bridge 2, for sealing the round mouth of salt bridge 2, contrast electrode assembly is arranged on the ground interface of assembly side, galvanochemistry glass reaction pond, make the unlimited circular glass carbon plate 4 near scribbling organic semiconducting materials of salt bridge 2 ends, and then make contrast electrode 1 and working electrode glass carbon plate 4 as far as possible close to reduce voltage drop, reduce the systematic error of experiment;
Galvanochemistry glass reaction pond assembly comprises for holding the galvanochemistry glass reaction pond 9 and the nitrogen access equipment 14 that is arranged on 9 sides, galvanochemistry glass reaction pond of electrolytic solution, nitrogen access equipment 14 is for guaranteeing to pass into sufficient nitrogen to get rid of the dissolved oxygen DO of electrolytic solution for the interference of test, between galvanochemistry glass reaction pond 9 and nitrogen access equipment 14, adopts ground to be connected to guarantee the sealing of whole electrochemical testing device;
Galvanochemistry glass reaction pond seal assembly comprises galvanochemistry glass reaction pond gland bonnet 10, exhaust apparatus 11, rubber stopper 12, to electrode 15, platinum filament in electrode 15 is connected with soldering with copper wire, copper wire is encapsulated in glass tube, only allows platinum filament contact with electrolytic solution; Galvanochemistry glass reaction pond gland bonnet 10 is arranged on 9 tops, galvanochemistry glass reaction pond, exhaust apparatus 11 is installed on the first round mouth of galvanochemistry glass reaction pond gland bonnet 10, electrode 15 is arranged on the second round mouth of galvanochemistry glass reaction pond gland bonnet 10, the 3rd round mouth of rubber stopper 12 sealed electrochemical glass reaction pond gland bonnets 10 is standby; Galvanochemistry glass reaction pond 9 and galvanochemistry glass reaction pond gland bonnet 10, all adopt ground to be connected to guarantee the sealing of whole electrochemical testing device between electrode 15, exhaust apparatus 11, rubber stopper 12 and galvanochemistry glass reaction pond gland bonnet 10.
Below in conjunction with specific embodiment, the present invention is elaborated.
Embodiment mono-:
In the organic semiconductor electrochemical testing device of the present embodiment, the assembling of working electrode assembly is used as follows: first by organic solar batteries semiconductor material DFTBT (a kind of derivant of spiral shell two fluorenes, be used in organic solar batteries) (molecular structure is as shown in Figure 7) be mixed with the acetonitrile solution of 2mM, getting the above-mentioned solution of 100 μ L is spin-coated on circular glass carbon plate 4 and makes thin film work electrode, finally put it in the circular trough of copper frame 7 sections, the fixing circular glass carbon plate 4 of copper frame screwing 8, copper frame 7 is put on the rectangle chute of copper frame fixed station 5 bottoms and is allowed together with the circular groove cover of copper frame 7 another sections and the head of bolt 6 assemble, guarantee that the electrode pin on copper frame 7 makes progress simultaneously.Galvanochemistry glass reaction pond 9 supplies to be equipped with and to seal O type circle 3 in the fixing connector section circular groove of working electrode, rectangular channel turn bolt 6 along copper frame fixed station 5 bottoms, make to be tightly pressed on O type circle 3 as the circular glass carbon plate 4 of working electrode, existing like this sealing function, can guarantee again effective surface of contact of constant working electrode and electrolytic solution, i.e. circular hole area in O type circle 3.
In the organic semiconductor electrochemical testing device of the present embodiment, contrast electrode assembly assembling is used as follows: closing salt bridge switch, is the supporting electrolyte of 0.1M perchloric acid tetrabutyl ammonia to adding 3mL concentration in salt bridge 2, contrast electrode 1 use Ag/Ag
+contrast electrode, contrast electrode 1 inserts the middle circular hole of rubber stopper 13 with holes, and rubber stopper 13 is arranged on salt bridge 2 round mouths, and rubber stopper 13 external diameters are slightly larger than salt bridge round mouth, have sealing function.Contrast electrode assembly is arranged on the side ground interface of chemical bath 9, makes salt bridge end unlimited near the circular glass carbon plate 4 of working electrode.
In the organic semiconductor electrochemical testing device of the present embodiment, the seal assembly assembling of galvanochemistry glass reaction pond is as follows: galvanochemistry glass reaction pond gland bonnet 10 is arranged on 9 tops, galvanochemistry glass reaction pond, exhaust apparatus 11 is installed on the first round mouth of galvanochemistry glass reaction pond gland bonnet 10, electrode 15 is arranged on the second round mouth of galvanochemistry glass reaction pond gland bonnet 10, the 3rd round mouth of rubber stopper 12 sealed electrochemical glass reaction pond gland bonnets 10 is standby.
In the organic semiconductor electrochemical testing device of the present embodiment, assembly assembling in galvanochemistry glass reaction pond is used as follows: nitrogen access equipment 14 is connected by ground with galvanochemistry glass reaction pond 9.After contrast electrode assembly and working electrode assembly install on galvanochemistry glass reaction pond 9, to add in galvanochemistry glass reaction pond 9 50mL concentration be the acetonitrile solution of 0.1M perchloric acid tetrabutyl ammonia as electrolytic solution, and guarantee the circular glass carbon plate 4 of submergence working electrode.Then galvanochemistry glass reaction pond gland bonnet 10 being connected to galvanochemistry glass reaction pond 9 top grounds sentences 9 sealings of galvanochemistry glass reaction pond.
Before carrying out the test of galvanochemistry voltammetry and analyzing, utilize nitrogen access equipment 14 to pass into nitrogen to galvanochemistry glass reaction pond 9, the dissolved oxygen DO in solution is got rid of completely by exhaust apparatus 11.The electrode wire clamp of electrochemical workstation (is adopted to Shanghai occasion China electrochemical workstation in the present embodiment, wherein electrode wire clamp Green is corresponding to working electrode, white is corresponding to contrast electrode, red corresponding to electrode, black ground connection, yellow is the second working electrode, puts sky during experiment) be connected on respectively on 3 electrodes that this proving installation is corresponding.Open opening operation software after electrochemical workstation, select cyclic voltammetry, test parameter is set: starting potential E=0V, ceiling voltage E=1.0V, minimum voltage E=-1.9V, voltage scan rate 0.1V s
-1, scanning hop count is 3, initial scanning polarity is " positive ", and sampling interval 0.001V, time of repose is 10s, sensitivity is 1 * 10
-2a V
-1, obtain cyclic voltammogram as shown in Figure 4.
In accompanying drawing 4, respectively the oxidation of cyclic voltammogram and reduction peak wave inception position are done to tangent line, obtain the oxidizing potential with respect to silver/silver chloride contrast electrode: E
ox=0.66V and reduction potential are E
re=-1.31V, 6 show with reference to the accompanying drawings, ferrocene is half spike potential E with respect to the oxidizing potential of silver/silver ion contrast electrode
1/2, ferrocene=0.1V, and by inspection information handbook, the oxidizing potential E of ferrocene
1/2, ferrocenediffer 4.8eV with its vacuum level.Therefore, the band structure parameter of this organic solar batteries semiconductor material DFTBT molecule is:
LUOM energy level=-(E
re-E
1/2, ferrocene) eV+ (4.8) eV=-(1.31-0.1) eV+ (4.8) eV=-3.39eV,
HOMO energy level=-(E
ox-E
1/2, ferrocene) eV+ (4.8) eV=-(0.66-0.1) eV+ (4.8) eV=-5.36eV,
Galvanochemistry energy gap E
g=HOMO energy level-LUOM energy level=-3.39-(5.36) eV=1.97eV.
Embodiment bis-:
In the organic semiconductor electrochemical testing device of the present embodiment, the assembling of working electrode assembly is used as follows: first by organic semiconducting materials P1 (p-type dye molecule, be used in p-type DSSC) (molecular structure is as shown in Figure 8) be mixed with the acetonitrile solution of 0.025mM, getting the above-mentioned solution of 100 μ L is spin-coated on circular glass carbon plate 4 and makes thin film work electrode, finally put it in the circular trough of copper frame 7 sections, the fixing circular glass carbon plate 4 of copper frame screwing 8, copper frame 7 is put on the rectangle chute of copper frame fixed station 5 bottoms and is allowed together with the circular groove cover of copper frame 7 another sections and the head of bolt 6 assemble, guarantee that the electrode pin on copper frame 7 makes progress simultaneously.Galvanochemistry glass reaction pond 9 supplies to be equipped with and to seal O type circle 3 in the fixing connector section circular groove of working electrode, rectangular channel turn bolt 6 along copper frame fixed station 5 bottoms, make to be tightly pressed on O type circle 3 as the circular glass carbon plate 4 of working electrode, existing like this sealing function, can guarantee again effective surface of contact of constant working electrode and electrolytic solution, i.e. circular hole area in O type circle 3.
In the organic semiconductor electrochemical testing device of the present embodiment, contrast electrode assembly assembling is used as follows: closing salt bridge switch, is the supporting electrolyte of 0.1M perchloric acid tetrabutyl ammonia to adding 3mL concentration in salt bridge 2, contrast electrode 1 use Ag/Ag
+contrast electrode, contrast electrode 1 inserts the middle circular hole of rubber stopper 13 with holes, and rubber stopper 13 is arranged on salt bridge 2 round mouths, and rubber stopper 13 external diameters are slightly larger than salt bridge round mouth, have sealing function.Contrast electrode assembly is arranged on the side ground interface of chemical bath 9, makes salt bridge end unlimited near the circular glass carbon plate 4 of working electrode.
In the organic semiconductor electrochemical testing device of the present embodiment, the seal assembly assembling of galvanochemistry glass reaction pond is as follows: galvanochemistry glass reaction pond gland bonnet 10 is arranged on 9 tops, galvanochemistry glass reaction pond, exhaust apparatus 11 is installed on the first round mouth of galvanochemistry glass reaction pond gland bonnet 10, electrode 15 is arranged on the second round mouth of galvanochemistry glass reaction pond gland bonnet 10, the 3rd round mouth of rubber stopper 12 sealed electrochemical glass reaction pond gland bonnets 10 is standby.
In the organic semiconductor electrochemical testing device of the present embodiment, assembly assembling in galvanochemistry glass reaction pond is used as follows: nitrogen access equipment 14 is connected by ground with galvanochemistry glass reaction pond 9.After contrast electrode assembly and working electrode assembly install on galvanochemistry glass reaction pond 9, to add in galvanochemistry glass reaction pond 9 50mL concentration be the acetonitrile solution of 0.1M perchloric acid tetrabutyl ammonia as electrolytic solution, and guarantee the circular glass carbon plate 4 of submergence working electrode.Then galvanochemistry glass reaction pond gland bonnet 10 being connected to galvanochemistry glass reaction pond 9 top grounds sentences 9 sealings of galvanochemistry glass reaction pond.
Before carrying out the test of galvanochemistry voltammetry and analyzing, utilize nitrogen access equipment 14 to pass into nitrogen to galvanochemistry glass reaction pond 9, the dissolved oxygen DO in solution is got rid of completely by exhaust apparatus 11.The electrode wire clamp of electrochemical workstation (is adopted to Shanghai occasion China electrochemical workstation in the present embodiment, wherein electrode wire clamp Green is corresponding to working electrode, white is corresponding to contrast electrode, red corresponding to electrode, black ground connection, yellow is the second working electrode, puts sky during experiment) be connected on respectively on 3 electrodes that this proving installation is corresponding.Open opening operation software after electrochemical workstation, select cyclic voltammetry, test parameter is set: starting potential E=0V, ceiling voltage E=1.6V, minimum voltage E=-1.8V, voltage scan rate 0.1V s
-1, scanning hop count is 3, initial scanning polarity is " positive ", and sampling interval 0.001V, time of repose is 10s, sensitivity is 1 * 10
-6a V
-1, obtain cyclic voltammogram as shown in Figure 5.
In accompanying drawing 5, respectively the oxidation of cyclic voltammogram and reduction peak wave inception position are done to tangent line, obtain the oxidizing potential with respect to silver/silver chloride contrast electrode: E
ox=0.63V and reduction potential are E
re=-0.99V, 6 show with reference to the accompanying drawings, ferrocene is half spike potential E with respect to the oxidizing potential of silver/silver ion contrast electrode
1/2, ferrocene=0.1V, and by inspection information handbook, the oxidizing potential E of ferrocene
1/2, ferrocenediffer 4.8eV with its vacuum level.Therefore, the band structure parameter of this organic solar batteries semiconductor material P1 dye molecule is:
LUOM energy level=-(E
re-E
1/2, ferrocene) eV+ (4.8) eV=-(0.99-0.1) eV+ (4.8) eV=-3.71eV,
HOMO energy level=-(E
ox-E
1/2, ferrocene) eV+ (4.8) eV=-(0.63-0.1) eV+ (4.8) eV=-5.33eV,
Galvanochemistry energy gap E
g=HOMO energy level-LUOM energy level=-3.71-(5.33) eV=1.62eV.
From above-mentioned specific embodiment, the cyclic voltammetry characteristic test that adopts organic semiconductor electrochemical testing device of the present invention to carry out, can obtain comparatively accurate experimental data, has greatly improved reliability and the science of experiment.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an organic semiconductor electrochemical testing device, comprise galvanochemistry glass reaction pond assembly and galvanochemistry glass reaction pond seal assembly, galvanochemistry glass reaction pond assembly is used for holding electrolytic solution, galvanochemistry glass reaction pond seal assembly is for sealing galvanochemistry glass reaction pond assembly, it is characterized in that, also comprise working electrode assembly and contrast electrode assembly
Described working electrode assembly comprises O type circle (3), circular glass carbon plate (4), copper frame fixed station (5), bolt (6), copper frame (7), screw (8), circular glass carbon plate (4) is fixed in the circular trough of copper frame (7) section by screw (8), the upper spin coating of circular glass carbon plate (4) has organic semiconducting materials as working electrode, rotation is assemblied in the bolt (6) on copper frame fixed station (5) bottom rectangle groove, circular glass carbon plate (4) is pressed on O type circle (3), O type circle (3) is fixed on assembly one side grinding mouth place, galvanochemistry glass reaction pond and contacts with electrolytic solution,
Contrast electrode assembly comprises contrast electrode (1), salt bridge (2) and rubber stopper with holes (13), contrast electrode (1) inserts in the middle circular hole of rubber stopper with holes (13), rubber stopper with holes (13) is arranged on the round mouth of salt bridge (2), salt bridge (2) is arranged on the assembly opposite side ground interface of galvanochemistry glass reaction pond, makes the unlimited circular glass carbon plate (4) near scribbling organic semiconducting materials of salt bridge (2) end.
2. organic semiconductor electrochemical testing device as claimed in claim 1, is characterized in that, described galvanochemistry glass reaction pond assembly comprises galvanochemistry glass reaction pond (9) and is arranged on the nitrogen access equipment (14) of side, galvanochemistry glass reaction pond (9).
3. organic semiconductor electrochemical testing device as claimed in claim 1 or 2, it is characterized in that, described galvanochemistry glass reaction pond seal assembly comprises galvanochemistry glass reaction pond gland bonnet (10), exhaust apparatus (11), rubber stopper (12), to electrode (15), galvanochemistry glass reaction pond gland bonnet (10) is arranged on top, galvanochemistry glass reaction pond (9), exhaust apparatus (11) is installed on the first round mouth of galvanochemistry glass reaction pond gland bonnet (10), electrode (15) is arranged on the second round mouth of galvanochemistry glass reaction pond gland bonnet (10), the 3rd round mouth of rubber stopper (12) sealed electrochemical glass reaction pond gland bonnet (10) is standby.
4. organic semiconductor electrochemical testing device as claimed in claim 1 or 2, is characterized in that, the pin on described copper frame (7) is fine copper pin and keeps up.
5. organic semiconductor electrochemical testing device as claimed in claim 1 or 2, is characterized in that, described rubber stopper (13) external diameter is slightly larger than the round mouth of salt bridge (2), for sealing the round mouth of salt bridge (2).
6. organic semiconductor electrochemical testing device as claimed in claim 1 or 2, is characterized in that, described copper frame fixed station (5) and screw (8) are polytetrafluoroethylmaterial material.
7. organic semiconductor electrochemical testing device as claimed in claim 3, it is characterized in that, described galvanochemistry glass reaction pond (9) and nitrogen access equipment (14), galvanochemistry glass reaction pond (9) and galvanochemistry glass reaction pond gland bonnet (10), all adopt ground to be connected between electrode (15), exhaust apparatus (11), rubber stopper (12) and galvanochemistry glass reaction pond gland bonnet (10).
8. organic semiconductor electrochemical testing device as claimed in claim 3, it is characterized in that, the described platinum filament to electrode (15) is connected with soldering with copper wire, and copper wire is encapsulated in the glass tube of electrode (15), and only by platinum filament, the electrolytic solution in galvanochemistry glass reaction pond (9) contacts.
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| CN105092799A (en) * | 2015-09-14 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | Multi-purpose underground observing room |
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