CN108269919A - A kind of efficient blending ternary organic solar batteries absorbed based on full optical band - Google Patents
A kind of efficient blending ternary organic solar batteries absorbed based on full optical band Download PDFInfo
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- CN108269919A CN108269919A CN201710000089.5A CN201710000089A CN108269919A CN 108269919 A CN108269919 A CN 108269919A CN 201710000089 A CN201710000089 A CN 201710000089A CN 108269919 A CN108269919 A CN 108269919A
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- H—ELECTRICITY
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- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/10—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
- H10K30/15—Sensitised wide-bandgap semiconductor devices, e.g. dye-sensitised TiO2
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Abstract
The invention belongs to polymer solar battery technical fields, are related to a kind of efficient blending ternary organic solar energy cell structure design absorbed based on full optical band.The battery will be silver-colored（Gold）Nanoparticle matrix is introduced into ternary system battery, and electric field is strapped in around micro-structure, and by the way that near field is excited to act on, light field almost all is penetrated into active layer；Active layer is spin-coated on Ag/Au matrix self-assembling formation similar to micro-nano optical grating construction, excitating surface plasmon polariton, incident light is limited in inside active layer, by adjusting micro-nano square formation period and thickness of metal film etc., the light absorption effect of enhancing is generated in ultraviolet, visible and near infrared region super wide range.Simultaneously, two kinds of chemical constitutions are similar, the donor polymer of spectral absorption complementation prepares solution with receptor blending and prepares film forming, absorption spectrum is widened, greatly improve device open-circuit voltage, short circuit current and fill factor, energy conversion efficiency is high, and device is prepared into power height, and it is low that device prepares complexity.
Description
Technical field
The invention belongs to technical field of solar batteries, and being related to a kind of efficiently blending ternary absorbed based on full optical band is had
Machine solar cell.
Background technology
With the fast development of social economy, the non-renewable type resource such as oil, natural gas is increasingly exhausted, the energy into
One of strategic issues for countries in the world common concern.Research shows that solar energy is internationally recognized preferable alternative energy source, it is
The available most direct clean energy resource of the mankind.There are two main bottleneck problems are anxious for organic polymer solar cell at present
It needs to solve, first, the limitation of traditional structure battery so that active layer is relatively low for the absorption efficiency of sunlight, photoelectricity is caused to turn
It changes efficiency to be difficult to increase substantially, second is that the stability of photovoltaic cell is poor, third, production technology is more complicated.
Invention content
The present invention provides a kind of efficient blending ternary absorbed based on full optical band for the drawbacks described above of the prior art
Organic solar batteries.The solar cell is by the use of Ag/Au matrix square formations micro-nano structures as intermediate buffer layer, to reality
Now to the efficient absorption of solar spectrum, so as to further improve capture ability of the organic thin film solar cell to sunlight.With
This designs simultaneously and prepares similar in structure in chemical property and have good " compatibility ", have on absorption spectrum
There is complementary novel donor material, the blending heterojunction solar battery of ternary system is made by mixing with fullerene acceptor material
（dual donors-single acceptor）, to replace traditional binary system battery (single donor-single
Acceptor), farthest to match solar spectrum, the photoelectric conversion efficiency of solar cell is improved.
The present invention adopts the following technical scheme that：
A kind of efficient blending ternary organic solar batteries absorbed based on full optical band, heterogeneous junction is blended using ternary system
Structure is divided into two kinds of positive device and inverted device.The layer of structure of positive device is top-down to be followed successively by：Metal Al cathode layers,
Active layer, silver is blended in cathode LiF decorative layers（Gold）Nanoparticle matrix, hole PEDOT:PSS transport layers, ITO, glass anode layer.Instead
It top-down is followed successively by the layer of structure of device：Active layer, silver is blended in metal Ag anode layers, anode MoO3 decorative layers（Gold）
Nanoparticle matrix, hole PFN transport layers, ITO, glass cathode layer.
Donor material is the narrowband for being less than 1.4eV by wide band gap polymer of the optical band gap more than 1.8eV and optical band gap
Gap polymer forms.Acceptor material is PCBM, including PC61BM and PC71BM.Silver（Gold）Nanoparticle matrix layer or Ag/Au
Matrix micro-nano structures are that Ag/Au materials are prepared by nanometer embossing or photoetching technique, the square formation micro-nano structure of Ag
Cycle length is 280nm, and thickness 20nm, the width of closed square is 100nm；The width of hollow square is 140nm.Positive device
Cathode LiF decorative layers are by being deposited LiF material preparations, thickness 0.1-0.5nm in part；Hole PEDOT:PSS transport layers use
PEDOT:PSS solution spin coatings, thickness 40nm.In inverted device hole PFN transport layers be PFN by spin-coating film, thickness is
5-10nm, anode MoO3 decorative layers are prepared by being deposited, thickness 20-40nm.
It is a kind of to utilize silver based on the efficient blending ternary organic solar batteries that full optical band absorbs（Gold）Nanoparticle matrix exists
In the range of wavelength 350nm~900nm, the photon number of absorption significantly increases, and intimate one times is increased at peak value, new construction device
Part relative to absorption red shift 20nm for the commonplace components for being not introduced into nanostructured or so, assimilation effect more preferably, the short circuit of device
Current density enhances nearly 50%, it is possible thereby to greatly enhance the energy conversion efficiency of organic solar batteries.
The battery spin-coating film, used broadband in a manner that the polymer of two kinds of different band gap is blended with receptor
The absorption region of gap polymer is 350-700nm, the absorption region of narrow band gap polymer is to reach 650 after 500-900nm is blended
The absorption region of~900nm, has widened the spectral absorption range of battery, and best organic solar batteries transfer efficiency reaches
5.16%.At the same time, compared with the laminated cell of ternary material, technological process is greatly simplified, improves the success of preparation
Rate.
Description of the drawings
Fig. 1 is the positive battery structure structure diagram of the present invention；
Fig. 2 is reverse battery structure structure diagram of the present invention.
1 is glass anode layer in figure, and 2 be ITO, and 3 be hole PEDOT:PSS transport layers, 4 be silver（Gold）Nanoparticle matrix layer, 5
Active layer is blended, 6 be cathode LiF decorative layers, and 7 be metal Al cathode layers, and 8 be hole PFN transport layers, and 9 modify for anode MoO3
Layer, 10 be metal Ag anode layers, and 11 be glass cathode layer.
Specific embodiment：
As shown in Figure 1 and Figure 2, a kind of efficient blending ternary organic solar batteries absorbed based on full optical band, using triplet
System's blending heterojunction structure, is divided into two kinds of positive device and inverted device.The layer of structure of positive device is top-down to be followed successively by：
Metal Al cathode layers (7), cathode LiF decorative layers (6), blending active layer (5), silver（Gold）Nanoparticle matrix layer (4), hole PEDOT:
PSS transport layers (3), ITO (2), glass anode layer (1).The layer of structure of inverted device is top-down to be followed successively by：Metal Ag anodes
Layer (10), anode MoO3 decorative layers (9), blending active layer (5), silver（Gold）Nanoparticle matrix (4), hole PFN transport layers (8), ITO
(2), glass cathode layer (11).
Donor material is the narrowband for being less than 1.4eV by wide band gap polymer of the optical band gap more than 1.8eV and optical band gap
Gap polymer forms.Acceptor material is PCBM, including PC61BM and PC71BM.Silver（Gold）Nanoparticle matrix layer（4）Or Ag/Au
Matrix micro-nano structures are that Ag/Au materials are prepared by nanometer embossing or photoetching technique, the square formation micro-nano structure of Ag
Cycle length is 280nm, and thickness 20nm, the width of closed square is 100nm；The width of hollow square is 140nm.Positive device
Cathode LiF decorative layers in part（6）By LiF material preparations, thickness 0.1-0.5nm is deposited；Hole PEDOT:PSS transport layers (3)
Using PEDOT:PSS solution spin coatings, thickness 40nm.Hole PFN transport layers (8) are PFN by spin-coating film in inverted device,
Thickness is 5-10nm, and anode MoO3 decorative layers (9) are prepared by being deposited, thickness 20-40nm.
It is a kind of to utilize silver based on the efficient blending ternary organic solar batteries that full optical band absorbs（Gold）Nanoparticle matrix exists
In the range of wavelength 350nm~900nm, the photon number of absorption significantly increases, and intimate one times is increased at peak value, new construction device
Part relative to absorption red shift 20nm for the commonplace components for being not introduced into nanostructured or so, assimilation effect more preferably, the short circuit of device
Current density enhances nearly 50%, it is possible thereby to greatly enhance the energy conversion efficiency of organic solar batteries.
It is a kind of to be used based on the efficient blending ternary organic solar batteries that full optical band absorbs by two kinds of different band gap
Polymer and the mode spin-coating film of receptor blending, the absorption region of used wide band gap polymer is 350-700nm, narrowband
Absorption region of the absorption region of gap polymer to reach 650~900nm after 500-900nm blendings, has widened the spectrum of battery
Absorption region, best organic solar batteries transfer efficiency have reached 5.16%.At the same time, with the laminated cell of ternary material
It compares, greatly simplifies technological process, improve the success rate of preparation.
Claims (5)
1. a kind of efficient blending ternary organic solar batteries absorbed based on full optical band, it is characterised in that：Using triplet
System's blending heterojunction structure, is divided into two kinds of positive device and inverted device, the layer of structure of positive device is top-down to be followed successively by：
Metal Al cathode layers (7), cathode LiF decorative layers (6), blending active layer (5), silver（Gold）Nanoparticle matrix layer (4), hole PEDOT:
PSS transport layers (3), ITO (2), glass anode layer (1)；The layer of structure of inverted device is top-down to be followed successively by：Metal Ag anodes
Layer (10), anode MoO3 decorative layers (9), blending active layer (5), silver（Gold）Nanoparticle matrix (4), hole PFN transport layers (8), ITO
(2), glass cathode layer (11).
2. a kind of efficient blending ternary organic solar batteries dress absorbed based on full optical band according to claim 1
It puts, it is characterised in that：The silver（Gold）Nanoparticle matrix layer（4）Using Ag/Au materials, pass through nanometer embossing or light
Lithography is realized.
3. a kind of efficient blending ternary organic solar batteries dress absorbed based on full optical band according to claim 1
Positive device in putting, it is characterised in that:The cathode LiF decorative layers（6）It is by LiF material preparations, thickness 0.1- is deposited
0.5 nm；Anode transport layer（3）Using PEDOT:PSS solution spin coatings, thickness 40nm.
4. a kind of efficient blending ternary organic solar batteries dress absorbed based on full optical band according to claim 1
Inverted device in putting, it is characterised in that:Hole PFN transport layers (3) pass through spin-coating film, thickness 5-10nm, blending activity
Layer（5）With metal Ag anode layers（10）Between be anode MoO3 decorative layers（9）,MoO3Prepared by vapor deposition, thickness 20-40nm.
5. a kind of efficient blending ternary organic solar batteries device absorbed based on full optical band according to claim 1
In positive device, it is characterised in that：The metal Al cathode layers（7）Using Al（Ca）Material, described one kind are based on complete
Inverted device in the efficient blending ternary organic solar batteries device that optical band absorbs, it is characterised in that：The metal
Ag anode layers（10）Using Ag (Au) material.
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| CN201710000089.5A CN108269919A (en) | 2017-01-01 | 2017-01-01 | A kind of efficient blending ternary organic solar batteries absorbed based on full optical band |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919440A (en) * | 2017-11-30 | 2018-04-17 | 泰山学院 | A kind of efficient blending ternary system organic solar batteries absorbed based on full optical band |
| CN110752297A (en) * | 2019-08-28 | 2020-02-04 | 电子科技大学 | Ultraviolet-absorbing organic molecule-doped ternary solar cell and preparation method thereof |
| CN110858626A (en) * | 2018-08-24 | 2020-03-03 | 中国科学院化学研究所 | Blend, blend film containing blend, photovoltaic active layer and device and preparation method of blend |
-
2017
- 2017-01-01 CN CN201710000089.5A patent/CN108269919A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919440A (en) * | 2017-11-30 | 2018-04-17 | 泰山学院 | A kind of efficient blending ternary system organic solar batteries absorbed based on full optical band |
| CN110858626A (en) * | 2018-08-24 | 2020-03-03 | 中国科学院化学研究所 | Blend, blend film containing blend, photovoltaic active layer and device and preparation method of blend |
| CN110858626B (en) * | 2018-08-24 | 2021-12-14 | 中国科学院化学研究所 | Blend, blend film containing blend, photovoltaic active layer and device and preparation method of blend |
| CN110752297A (en) * | 2019-08-28 | 2020-02-04 | 电子科技大学 | Ultraviolet-absorbing organic molecule-doped ternary solar cell and preparation method thereof |
| CN110752297B (en) * | 2019-08-28 | 2021-08-10 | 电子科技大学 | Ultraviolet-absorbing organic molecule-doped ternary solar cell and preparation method thereof |
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