CN105977384A - Polymer solar cell capable of improving energy conversion efficiency based on plasma back-scattering effect and preparation method thereof - Google Patents

Polymer solar cell capable of improving energy conversion efficiency based on plasma back-scattering effect and preparation method thereof Download PDF

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CN105977384A
CN105977384A CN201610347966.1A CN201610347966A CN105977384A CN 105977384 A CN105977384 A CN 105977384A CN 201610347966 A CN201610347966 A CN 201610347966A CN 105977384 A CN105977384 A CN 105977384A
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solution
zno
nanometer rods
conversion efficiency
energy conversion
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温善鹏
王晨
阮圣平
郭文滨
沈亮
董玮
张歆东
周敬然
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Jilin University
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Jilin University
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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
    • H10K30/30—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
    • H10K30/35—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains comprising inorganic nanostructures, e.g. CdSe nanoparticles
    • H10K30/352—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains comprising inorganic nanostructures, e.g. CdSe nanoparticles the inorganic nanostructures being nanotubes or nanowires, e.g. CdTe nanotubes in P3HT polymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • 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
    • H10K30/87—Light-trapping means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Abstract

The invention, which belongs to the technical field of the polymer solar cell, particularly relates to a polymer solar cell capable of improving the energy conversion efficiency based on a plasma back-scattering effect and a preparation method thereof. A ZnO electron transfer layer arranged at a back side is manufactured by solution spinning of methanol dispersion liquid with ZnO nano-particles; and doping of a ZnO layer is carried out by using a Au nanorod. With the method, on the one hand, the plasma resonance excimer of the Au nanorod is introduced to the back of the cell and thus light absorption by an active layer by many times is realized based on the plasma back-scattering effect, so that the light utilization rate is improved; and on the other hand, electron transmission and extraction by the ZnO layer can be improved effectively, the electron-hole transmission is balanced, and the space charge accumulation can be prevented. With the ZnO nano particles of the alcohol solution, controllable doping of the Au nanorod can be realized easily; and the electron transfer layer is prepared by using the solution spinning way, so that the process is simplified effectively and the energy consumption is reduced. With the method, the optical and electrical performances of the device can be improved substantially.

Description

A kind of polymer improving energy conversion efficiency based on plasma back scattering effect Solaode and preparation method thereof
Technical field
The invention belongs to polymer solar battery technical field, be specifically related to a kind of based on plasma back scattering Effect improves polymer solar battery of energy conversion efficiency and preparation method thereof.
Background technology
In recent years, solar energy utilizing aspect, polymer solar battery is with its low cost, processing technology Simply, the advantage such as can prepare by large area flexible, be increasingly becoming hot research field.But compared to silicon-based inorganic Solaode, the energy conversion efficiency of polymer solar battery is on the low side.In its energy of several restrictions conversion effect In the factor of rate, exciton diffusion length that polymer molecule is relatively short and low carrier mobility, force polymerization The device configurations of the commonly used thin light-absorption layer of thing solaode, to reduce the compound of photo-generated carrier, this will not Can cause device that the absorption rate of light is reduced with avoiding.Carry it addition, polymer solar cell device is internal The transmission of stream, compound and at electrode interface the efficiency of the dynamic process such as charge extraction, collection also affect The photovoltaic performance that device is final.Find a kind of battery that can simultaneously improve to the absorption efficiency of incident photon and device In part photo-generated carrier transmission, collection efficiency method to improve polymer solar battery energy conversion efficiency extremely Close important.
Summary of the invention
It is an object of the invention to provide a kind of based on plasma back scattering effect raising energy conversion efficiency poly- Compound solaode and preparation method thereof.
The polymer sun improving energy conversion efficiency based on plasma back scattering effect prepared by the present invention Energy battery, it is characterised in that: repaiied by ITO electro-conductive glass anode, PEDOT:PSS anode the most successively Decorations layer, PTB7:PC71The ZnO cathodic modification layer of BM extinction active layer, Au nanometer rods doping, Al negative electrode Composition, i.e. device architecture is ITO/PEDOT:PSS/PTB7:PC71The typical case of BM/ZnO (Au NRs)/Al Eurymeric structure；The ZnO cathodic modification layer of Au nanometer rods doping is the methanol dispersion liquid at ZnO nano granule Middle incorporation is ZnO nano granule and Au nanometer rods colloidal sol quality and the Au nanometer rods colloidal sol of 1～4wt%, and The mode utilizing solution spin coating prepares；This structure can be implemented in the back introducing plasma back of the body of battery and dissipates Penetrate the purpose of effect, thus improve the energy conversion efficiency of polymer solar battery.
In prepared polymer solar cell device, the thickness of PEDOT:PSS anode modification layer is 40～50nm, PTB7:PC71The thickness of BM extinction active layer is 90～100nm, the doping of Au nanometer rods The thickness of ZnO cathodic modification layer is 25～35nm, and the thickness of Al negative electrode is 80～120nm.
Wherein, the lateral dimension of Au nanometer rods is 20～25nm, and longitudinal size is 50～55nm, its laterally and Longitudinal plasma resonance absorption peak lays respectively at 513～516nm and 678～691nm, it is possible to PTB7:PC71The absorption spectrum of BM active layer is well matched with.
In the present invention, utilize the mode of solution spin coating to prepare the cathodic modification layer at battery back.Mix Backscatter body is formed, it is achieved to the most sharp through extinction active layer between Au nanometer rods and metal Al electrode The Multiple Scattering of light, thus increase light path, improve the extinction active layer utilization rate to incident illumination.
It addition, the Au nanometer rods of doping is by plasma resonance effect in ZnO cathodic modification layer, cause from Au nanometer rods shifts to the electric charge of ZnO, has filled up electron trap present in ZnO, thus has been effectively improved ZnO layer, to the transmission of electronics and extraction, prevents device internal space-charge from accumulating, and reduces carrier in interface Compound probability, improves the metal Al electrode collection efficiency to photo-generated carrier.ZnO layer at battery back Middle doping Au nanometer rods, it is possible to the light simultaneously improving device absorbs and multiple carrier dynamics mistakes in device Journey, is conducive to improving the energy conversion efficiency of polymer solar battery.
The ZnO cathodic modification layer of Au nanometer rods doping in the present invention, uses the mode of solution spin coating to prepare, Comparing with traditional vacuum vapour deposition, processing technology is easier, and can reduce energy consumption, has bigger Actual application value.
The polymer solar electricity improving energy conversion efficiency based on plasma back scattering effect of the present invention The preparation method in pond, its concrete steps are as follows with condition:
1) by ITO electro-conductive glass (resistivity 10～15 Ω/, transmitance >=95%) abstergent, go from Sub-water, acetone, isopropanol respectively supersound process 15～30 minutes, then dry up stand-by with nitrogen；
2) ITO Conducting Glass is placed at 60～80 DEG C baking 3～8 minutes, after being cooled to room temperature, uses Power is the 375nm treatment with ultraviolet light substrate 5 of 150～200 watts～15 minutes；
3) in ITO Conducting Glass, first 1000～1500rpm, 3～8 seconds, then 4000～6000 Rpm, 40～60 seconds spin coating PEDOT:PSS (P VP AI 4083) aqueous solution, then 120～150 DEG C of conditions Lower thermal anneal process 20～obtain the PEDOT:PSS anode modification layer that thickness is 40～50nm for 40 minutes； PEDOT:PSS aqueous solution needs the aqueous phase filtering head through 0.45 micron-scale to filter before spin coating；
4) at ambient temperature, by donor material PTB7 (Canada 1-Material Reagent Company) be subject to Body material PC71BM (fullerene derivate, Nichem precision Science and Technology Ltd.) is according to mass ratio 1:1.5 Ratio be dissolved in organic solvent chlorobenzene (Beijing lark prestige Reagent Company), being configured to bulk concentration is 5～15 The solution of mg/mL, then in this solution, addition volume fraction is finally the 1 of 1～5%, 8-diiodo-octane (western lattice Agate aldrich Reagent Company) as solvent additive, then stir 24～48 hours under the conditions of nitrogen atmosphere, Obtain PTB7:PC71BM active layer solution；
5) under the conditions of nitrogen atmosphere, spin-coating step 4 on PEDOT:PSS anode modification layer) gained PTB7:PC71BM active layer solution, spin coating rotating speed is 1000～1500rpm, and spin-coating time is 45～50 seconds； Then at the PTB7:PC of spin coating71150～300 μ L isopropanols (traditional Chinese medicines chemical reagent work) are dripped on BM active layer solution, And under 2000～3000rpm rotating speeds spin coating 20～40 seconds, thus preparing thickness is 90～100nm PTB7:PC71BM active layer；
6) by 2.95g zinc acetate dihydrate (traditional Chinese medicines chemical reagent work) at 60～65 DEG C 110～150mL without water beetle In alcohol (Beijing Chemical Plant), backflow is dissolved 20～40 minutes；Again by 1.48g potassium hydroxide (Tianjin chemical reagent Factory) room temperature is dissolved in 50～80mL absolute methanols；Utilize constant voltage burette by the methanol solution of potassium hydroxide by It is added dropwise in the methanol solution of zinc acetate, completed in 5～10 minutes；Solution becomes cloudy from starting dropping, After be increasingly becoming translucent；Become again muddy after reacting 80～100 minutes；Reaction is terminated after 135 minutes；Quiet Outwell supernatant after putting 2～4h, utilize 50～80mL methanol washing precipitations；Repeat above-mentioned to outwell supernatant, first Alcohol washing settling step 3～5 times；By the ZnO nano granule ultrasonic disperse again of generation at 90～120mL methanol Solution is formed transparent ZnO methanol dispersion liquid；
7) by 0.3463g Dodecyl trimethyl ammonium chloride (CTAB traditional Chinese medicines chemical reagent work) at 50～65 DEG C It is dissolved in 7～8mL deionized waters；1.5～the HAuCl of 5mL, 1mM are added in above-mentioned CTAB aqueous solution4 Aqueous solution (traditional Chinese medicines chemical reagent work), then in it, add sodium borohydride (Beijing chemistry of 0.5～1mL, 10mM Chemical reagent work) ice water solution, at 25～30 DEG C stir 2～4 hours prepared seed solutions；Separately take 250mL round bottom Flask, adds the CTAB of 4.317g, and adds 60～70mL deionized water dissolving；Be subsequently added into 50～60mL, The HAuCl of 1mM4Aqueous solution；Addition 0.6～the silver nitrate aqueous solution (state of 1.2mL, 0.01mM in it again Medicine chemical reagent work) and 0.55～the aqueous hydrochloric acid solution (Tianjin chemical reagent factory) of 1.1mL, 2M, stir at 25～30 DEG C Mix 0.5～2 hour and obtain growth solution；Finally take the seed solution 0.5～1mL of preparation, concentration is 0.1M's Ascorbic acid (AA, traditional Chinese medicines chemical reagent work) aqueous solution 0.5～1mL joins in growth solution, and 25～30 DEG C anti- Answering 3～6 hours, 8000～12000rpm are centrifuged 10～20 minutes, remove supernatant and obtain Au nanometer rods Colloidal sol；
8) mixing mass fraction in the methanol dispersion liquid of ZnO is that 1～4wt% (ZnO and Au nanometer rods is molten The quality of glue and) Au nanometer rods colloidal sol, supersound process 15～within 30 minutes, obtain Au nanometer rods doping ZnO Solution；The ZnO solution that Au nanometer rods is adulterated is spun to PTB7:PC71On BM active layer, spin speed Being 2000～4000rpm, spin-coating time is 20～40 seconds, thus obtains the Au nanometer that thickness is 25～35nm The ZnO cathodic modification layer of rod doping；
9) it is 1 × 10 at pressure-4～5 × 10-4Under Pa, true on the ZnO cathodic modification layer of Au nanometer rods doping Empty evaporating Al electrode；Al thickness of electrode is 80～120nm；Controlling deposition velocity during evaporation is
We, by Au nanometer rods of adulterating in the ZnO cathodic modification layer be positioned at battery back, improve polymerization The energy conversion efficiency of thing solaode.The method both can improve the device absorption efficiency to incident photon； The characteristic can improve again photo-generated carrier transmission in device, extracting and collecting；And Au doped zno layer Solution processable it also avoid the series of problems that evaporation coating method brings, and for Simplified flowsheet, reducing cost provides Ensure.
Accompanying drawing explanation
Fig. 1: the structural representation of polymer solar battery of the present invention；
Fig. 2: the embodiment of the present invention 1 preparation, different quality mark Au nanometer of adulterating in ZnO dispersion liquid The polymer solar battery current-voltage curve of rod；
Fig. 3: the embodiment of the present invention 2 preparation, based on the doping ZnO (2wt%Au formed under different rotating speeds NRs) the polymer solar battery current-voltage curve of cathodic modification layer；
As it is shown in figure 1,1 is ITO Conducting Glass (anode), 2 is PEDOT:PSS anode modification layer, 3 is PTB7:PC71BM extinction active layer, the ZnO cathodic modification layer that 4 is the doping of Au nanometer rods, 5 are Al negative electrode；
As shown in Figure 2 and Figure 3, it is that device is placed in 100mW/cm2Simulated solar irradiation irradiate under record The current-voltage characteristic curve of battery, uses Keithley SMU2601 multifunctional digital source table to carry out data acquisition Collection.For Fig. 2, curve 1 is the current-voltage curve of the device of undoped p Au nanometer rods in ZnO solution； Curve 2,3,4 is that to be doped with mass fraction in ZnO methanol dispersion liquid be 1wt%, 2wt% and 4wt% respectively The current-voltage characteristic curve of device of Au nanometer rods colloidal sol；The ZnO cathodic modification of Au nanometer rods doping Layer is all that the rotating speed spin coating using 3000rpm obtains；It can be seen that the doping of 2wt% is the suitableeest Close preparation the present invention device, it is thus achieved that solar cell photovoltaic performance optimal.And the mixing of 1wt% and 4wt% Under miscellaneous amount, the photovoltaic performance of respective devices, has declined compared to 2wt%, is not to prepare device of the present invention Optimum doping concentration.
After determining optimal Au doping (2wt%), we prepare with different spin coating rotating speeds and mix Au ZnO cathodic modification layer, as shown in Figure 3；Curve 1,2,3 is respectively with 2000,3000 and 4000rpm Device current-voltage curve prepared by Au (2wt%) ZnO solution is mixed in spin coating；It can be seen that work as The spin coating rotating speed of ZnO layer is that the device photovoltaic performance prepared during 3000rpm is optimal, is best suitable for for preparing this Device described in invention.And the ZnO layer of formation is the thinnest under 4000rpm, device performance is caused to reduce, not It it is the optimum condition preparing device of the present invention.
Detailed description of the invention
Embodiment 1:
1) to the ITO electro-conductive glass of 15mm × 20mm (resistivity 10～15 Ω/, transmitance 95%, The strip ITO region of 8mm × 20mm is in the middle of substrate) with abstergent, deionized water, acetone, different Propanol respectively supersound process 20 minutes, after dry up with nitrogen stand-by；
2) cleaning ITO substrate is heated 5 minutes in 70 DEG C of thermal station, put into UV-Ozone after cooling purple Outer cleaning machine processes 10 minutes；
3) on ITO substrate with 1000rpm, 5 seconds, 5000rpm, 50 seconds spin coating PEDOT:PSS Aqueous solution, and its 30 minutes preparation PEDOT:PSS anode of 140 DEG C of thermal anneal process in vacuum drying oven is repaiied Decorations layer, this layer thickness is 45nm；
4) at ambient temperature, by PTB7 and PC71BM is dissolved in organic solvent chlorine according to mass ratio 1:1.5 Benzene/1, in the mixed solvent of 8-diiodo-octane (97:3v/v), is configured to the work that PTB7 concentration is 10mg/mL Property layer solution；Active layer solution stir in the glove box of nitrogen atmosphere more than 24 hours stand-by；
5) by PTB7:PC in the glove box of nitrogen atmosphere protection71The active layer solution of BM is spun to On PEDOT:PSS, active layer preparation parameter is 1400rpm spin coating 50 seconds, then drips 200 μ L on active layer Isopropanol 2500rpm spin coating 30 seconds, complete the preparation of active layer, PTB7:PC71The thickness of BM active layer Degree is 95nm；
6) at 60 DEG C, 2.95g zinc acetate dihydrate is dissolved in 125mL absolute methanol；Another by 1.48gKOH Room temperature is dissolved in 65mL absolute methanol；Utilize constant voltage burette the methanol solution of potassium hydroxide is dropwise dripped into In the methanol solution of zinc acetate.Keeping temperature of reaction system is 60 DEG C, reacts 2 hours 15 minutes；Stand 2h After outwell supernatant, utilize 50mL methanol washing precipitation.Repeat above-mentioned outwell supernatant, methanol washing precipitation Step 3 time；The 1.02g ZnO ultrasonic disperse of generation is formed transparent ZnO in 100mL methanol solution Dispersion liquid；
7) in the CTAB aqueous solution that 7.5mL concentration is 0.1M, add the HAuCl of 2.5mL, 1mM4 Aqueous solution；In it, add the sodium borohydride ice water solution of 0.6mL, 10mM again, stir 2 hours at 27 DEG C Obtain seed solution；The another CTAB aqueous solution adding 66mL, 0.1M in round-bottomed flask, add 60mL, The HAuCl of 1mM4Aqueous solution；It is eventually adding the silver nitrate of 1.2mL, 0.01mM and 1.1mL, 2M Aqueous hydrochloric acid solution, stirs 0.5 hour to obtain growth solution at 27 DEG C；Take 1mL seed solution, 0.96mL dense The aqueous ascorbic acid solution that degree is 0.1M is added simultaneously in growth solution, after 27 DEG C are reacted 5 hours, 10000rpm is centrifuged 15 minutes, removes supernatant and obtains the colloidal sol of Au nanometer rods.
8) in ZnO methanol dispersion liquid, the Au that mass fraction is 1wt%, 2wt% and 4wt% is mixed respectively Nanometer rods colloidal sol, and the ZnO solution of doping is spun to PTB7:PC with 3000rpm71On BM active layer； The ZnO layer thickness prepared is about 30nm；
9) device taking-up is proceeded in SD400B multi-source temperature control gas molecule in space depositing system, be 5 × 10 at pressure-4 Vacuum evaporation Al electrode under Pa；Controlling deposition velocity during evaporation isIt is deposited with rear Al electricity Pole thickness is 100nm.
Embodiment 2:
1) by the ITO electro-conductive glass of 15mm × 20mm (resistivity 10～15 Ω/, transmitance 95%, The strip ITO region of 8mm × 20mm is in the middle of substrate) with abstergent, deionized water, acetone, different Propanol respectively supersound process 20 minutes, after dry up with nitrogen stand-by；
2) cleaning ITO substrate is heated 5 minutes in 70 DEG C of thermal station, put into UV-Ozone after cooling purple Outer cleaning machine processes 10 minutes；
3) on ITO substrate with 1000rpm, 5 seconds, 5000rpm, 50 seconds spin coating PEDOT:PSS Aqueous solution, and by its 30 minutes preparation PEDOT:PSS anode of 140 DEG C of thermal anneal process in vacuum drying oven Decorative layer, this layer thickness is 45nm；
4) at ambient temperature, by PTB7 and PC71BM is dissolved in organic solvent chlorine according to mass ratio 1:1.5 Benzene/1, in the mixed solvent of 8-diiodo-octane (97:3v/v), is configured to the work that PTB7 concentration is 10mg/mL Property layer solution；Active layer solution stir in the glove box of nitrogen atmosphere more than 24 hours stand-by；
5) by PTB7:PC in the glove box of nitrogen atmosphere protection71The active layer solution of BM is spun to On PEDOT:PSS, active layer preparation parameter is 1400rpm spin coating 50 seconds, then drips 200 μ L on active layer Isopropanol 2500rpm spin coating 30 seconds, complete the preparation of active layer.PTB7:PC71BM layer thickness is 95nm；
6) in the ZnO methanol dispersion liquid of preparation, the Au nanometer rods colloidal sol that mass fraction is 2wt% is mixed, Supersound process 20 minutes.At PTB7:PC71On BM active layer, respectively with 2000rpm, 3000rpm and 4000rpm carrys out the ZnO solution of spin coating Au nanometer rods doping, and spin-coating time is 30 seconds；The ZnO prepared Layer thickness is respectively 35nm, 30nm and 25nm；
7) device is taken out from glove box, proceeds in SD400B multi-source temperature control gas molecule in space depositing system, It is 5 × 10 at pressure-4Vacuum evaporation Al electrode under Pa；Controlling deposition velocity during evaporation isSteam Having plated rear Al thickness of electrode is 100nm.

Claims (7)

1. improve a polymer solar battery for energy conversion efficiency based on plasma back scattering effect, it is special Levy and be: the most successively by ITO electro-conductive glass anode, PEDOT:PSS anode modification layer, PTB7:PC71The ZnO cathodic modification layer of BM extinction active layer, Au nanometer rods doping, Al cathode sets Becoming, the ZnO cathodic modification layer of Au nanometer rods doping is to mix in the methanol dispersion liquid of ZnO nano granule Entering is ZnO nano granule and Au nanometer rods colloidal sol quality and the Au nanometer rods colloidal sol of 1～4wt%, and The mode utilizing solution spin coating prepares.
A kind of polymerization improving energy conversion efficiency based on plasma back scattering effect Thing solaode, it is characterised in that: in prepared polymer solar cell device, The thickness of PEDOT:PSS anode modification layer is 40～50nm, PTB7:PC71BM extinction active layer Thickness is 90～100nm, and the thickness of the ZnO cathodic modification layer of Au nanometer rods doping is 25～35nm, The thickness of Al negative electrode is 80～120nm.
A kind of polymerization improving energy conversion efficiency based on plasma back scattering effect Thing solaode, it is characterised in that: the lateral dimension of Au nanometer rods is 20～25nm, longitudinal size It is 50～55nm.
4. a kind of polymer improving energy conversion efficiency based on plasma back scattering effect described in claim 1 The preparation method of solaode, its step is as follows:
1) by ITO electro-conductive glass abstergent, deionized water, acetone, isopropanol supersound process 15～30 respectively Minute, then dry up stand-by with nitrogen；
2) ITO Conducting Glass is placed at 60～80 DEG C baking 3～8 minutes, after being cooled to room temperature, uses Power is the 375nm treatment with ultraviolet light substrate 5 of 150～200 watts～15 minutes；
3) in ITO Conducting Glass, first 1000～1500rpm, 3～8 seconds, then 4000～6000 Rpm, the aqueous solution of 40～60 seconds spin coating PEDOT:PSS, then under the conditions of 120～150 DEG C at thermal annealing Manage and within 20～40 minutes, obtain the PEDOT:PSS anode modification layer that thickness is 40～50nm；PEDOT:PSS Aqueous solution needs the aqueous phase filtering head through 0.45 micron-scale to filter before spin coating；
4) at ambient temperature, by donor material PTB7 and acceptor material PC71BM is according to mass ratio 1: The ratio of 1.5 is dissolved in organic solvent chlorobenzene, is configured to the solution that bulk concentration is 5～15mg/mL, then Adding volume fraction in this solution is finally the 1 of 1～5%, and 8-diiodo-octane is as solvent additive, so After under the conditions of nitrogen atmosphere stir 24～48 hours, obtain PTB7:PC71BM active layer solution；
5) under the conditions of nitrogen atmosphere, spin-coating step 4 on PEDOT:PSS anode modification layer) gained PTB7:PC71BM active layer solution, spin coating rotating speed is 1000～1500rpm, and spin-coating time is 45～50 Second；Then at the PTB7:PC of spin coating71150～300 μ L isopropanols are dripped on BM active layer solution, and Spin coating 20～40 seconds under 2000～3000rpm rotating speeds, thus preparing thickness is 90～100nm PTB7:PC71BM active layer；
6) mix in the methanol dispersion liquid of ZnO be ZnO nano granule and Au nanometer rods colloidal sol quality and The Au nanometer rods colloidal sol of 1～4wt%, supersound process 15～within 30 minutes, obtain Au nanometer rods doping ZnO Solution；The ZnO solution that Au nanometer rods is adulterated is spun to PTB7:PC71On BM active layer, spin coating Speed is 2000～4000rpm, and spin-coating time is 20～40 seconds, thus obtaining thickness is 25～35nm The ZnO cathodic modification layer of Au nanometer rods doping；
7) it is 1 × 10 at pressure-4～5 × 10-4Under Pa, true on the ZnO cathodic modification layer of Au nanometer rods doping Empty evaporating Al electrode, Al thickness of electrode is 80～120nm, controls deposition velocity and be during evaporationThus prepare and improve energy conversion efficiency based on plasma back scattering effect Polymer solar battery.
A kind of polymerization improving energy conversion efficiency based on plasma back scattering effect The preparation method of thing solaode, it is characterised in that: it is at 60～65 DEG C by 2.95g zinc acetate dihydrate Under in 110～150mL absolute methanols backflow dissolve 20～40 minutes；Again by normal for 1.48g potassium hydroxide Temperature is dissolved in 50～80mL absolute methanols；Utilize constant voltage burette by the methanol solution of potassium hydroxide dropwise Join in the methanol solution of zinc acetate, completed in 5～10 minutes；Solution becomes cloudy from starting dropping, After be increasingly becoming translucent；Become again muddy after reacting 80～100 minutes；Reaction is terminated after 135 minutes； Outwell supernatant after standing 2～4h, utilize 50～80mL methanol washing precipitations；Repeat above-mentioned to outwell supernatant Liquid, methanol washing settling step 3～5 times；The ZnO nano granule ultrasonic disperse again generated is existed 90～120mL methanol solutions are formed the methanol dispersion liquid of transparent ZnO.
A kind of polymerization improving energy conversion efficiency based on plasma back scattering effect The preparation method of thing solaode, it is characterised in that: it is by 0.3463g trimethyl bromination Ammonium is dissolved in 7～8mL deionized waters at 50～65 DEG C；Add in above-mentioned CTAB aqueous solution 1.5～the HAuCl of 5mL, 1mM4Aqueous solution, then addition 0.5～the boron hydrogen of 1mL, 10mM in it Change the ice water solution of sodium, at 25～30 DEG C, stir 2～4 hours prepared seed solutions；Separately take 250mL round bottom Flask, adds the CTAB of 4.317g, and adds 60～70mL deionized water dissolving；It is subsequently added into 50～the HAuCl of 60mL, 1mM4Aqueous solution；Addition 0.6～the nitre of 1.2mL, 0.01mM in it again Acid silver aqueous solution and 0.55～the aqueous hydrochloric acid solution of 1.1mL, 2M, at 25～30 DEG C, stirring obtains for 0.5～2 hour Obtain growth solution；Finally take the seed solution 0.5～1mL of preparation, concentration is the Vitamin C sour water of 0.1M Solution 0.5～1mL joins in growth solution, 25～30 DEG C react 3～6 hours, 8000～12000rpm Centrifugal 10～20 minutes, remove supernatant and obtain the colloidal sol of Au nanometer rods.
A kind of polymerization improving energy conversion efficiency based on plasma back scattering effect The preparation method of thing solaode, it is characterised in that: the resistivity 10～15 Ω/ of ITO electro-conductive glass, Transmitance >=95%.
CN201610347966.1A 2016-05-24 2016-05-24 Polymer solar cell capable of improving energy conversion efficiency based on plasma back-scattering effect and preparation method thereof Pending CN105977384A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN106299133A (en) * 2016-10-08 2017-01-04 吉林大学 A kind of polymer solar battery based on metal oxide metal nanostructured hybrid electron transport layer and preparation method thereof
TWI651349B (en) * 2017-01-11 2019-02-21 華邦電子股份有限公司 Sensor, composite material and method of manufacturing the same
US10823691B2 (en) 2017-01-11 2020-11-03 Winbond Electronics Corp. Sensor, composite material and method of manufacturing the same
CN107225236A (en) * 2017-06-19 2017-10-03 洛阳理工学院 A kind of preparation method of gold nanorods/zinc oxide core-shell nano composite construction
CN108198940A (en) * 2017-12-15 2018-06-22 浙江海洋大学 A kind of reversed structure organic photovoltaic cell of ZnMgO nano-pillars aluminum oxide nanoparticle laminated film as electron transfer layer

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