CN109786564A - Perovskite thin film solar battery - Google Patents
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- CN109786564A CN109786564A CN201910029947.8A CN201910029947A CN109786564A CN 109786564 A CN109786564 A CN 109786564A CN 201910029947 A CN201910029947 A CN 201910029947A CN 109786564 A CN109786564 A CN 109786564A
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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Abstract
The invention discloses a kind of perovskite thin film solar batteries.The perovskite thin film solar battery includes: stacked multiple function layers, in functional layer described in multilayer wherein one layer be photoactive layer, other at least one layer of functional layers that the photoactive layer is removed in functional layer described in multilayer are configured to wrapping layer, the wrapping layer includes: the perisphere for serving as the wrapping layer ontology of overlapping part and extending from at least partly edge of the wrapping layer ontology, and the wrapping layer ontology and the perisphere surround at least three sides of the photoactive layer.Perovskite thin film solar battery according to the present invention, photoactive layer is coated by setting wrapping layer, it can be by photoactive layer and external moisture, gas-insulated, to guarantee the functional of photoactive layer, photoactive layer is avoided to deteriorate, in this way, photoactive layer can convert light energy into electric energy after absorbing luminous energy to the maximum extent.
Description
Technical field
The present invention relates to battery technology fields, in particular to a kind of perovskite thin film solar battery.
Background technique
Solar battery causes self-characteristic to deteriorate due to the moisture and/or gas that are introduced from outside into.Particularly, by having
Machine/inorganic material composition mixing perovskite material (i.e. photoactive layer) has the shortcomings that by moisture and gas accelerated deterioration.?
In the case where flexible substrates, water can be directed through polymeric substrates and/or enter the perovskite material bed of material by edge sealant.
For the solar battery for using substrate of glass to seal, moisture and gas penetration substrate of glass can be prevented, but they
It remains to enter the perovskite material bed of material across edge sealant, leads to perovskite material bed of material penalty.
In the prior art, organic/inorganic plural layers packaging method has excellent barrier functionality to moisture and gas, but
It is, it is still desirable to the additional process for 1) being only used for encapsulation is developed, increases cost, 2) organic/inorganic plural layers are since it is to too
The high reflectance or high-absorbility of sunlight, cause sunlight transmittance to reduce, and reduce incident photon-to-electron conversion efficiency.
Summary of the invention
In view of this, the present invention is directed to propose a kind of perovskite thin film solar battery, by photoactive layer and moisture, gas
Body isolation.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of perovskite thin film solar battery, comprising: stacked multiple function layers, in functional layer described in multilayer wherein
One layer is photoactive layer, and other at least one layer of functional layers that the photoactive layer is removed in functional layer described in multilayer are configured to wrap
Layer, it is described wrapping layer include: serve as overlapping part wrapping layer ontology and from it is described wrapping layer ontology at least partly edge
The perisphere of extension, the wrapping layer ontology and the perisphere surround at least three sides of the photoactive layer.
According to some embodiments of the present invention, the wrapping layer is one layer, and light described in the wrapping layer integral coating is living
Property layer.
According to some embodiments of the present invention, the perovskite thin film solar battery includes: from first direction towards second
Preceding substrate layer, including transparent conducting oxide layer, the photoactive layer, rear metal electrode and the metacoxal plate layer of direction arrangement, the packet
The wrapping layer ontology setting of winding layer is between the photoactive layer, the rear metal electrode, and the perisphere of the wrapping layer is at least
Coat the photoactive layer.
Further, the wrapping layer is the first charge transfer layer, and the wrapping layer also coats the preceding substrate layer, described
Including transparent conducting oxide layer.
Further, second electric charge transfer is provided between the including transparent conducting oxide layer, the photoactive layer
Layer.
Optionally, antireflection layer is provided between the preceding substrate layer and the including transparent conducting oxide layer.
Further, the perovskite thin film solar battery further includes encapsulated layer, and the encapsulated layer is arranged after described
Between metal electrode, the metacoxal plate layer.
According to some embodiments of the present invention, the wrapping layer is multilayer, and wrapping layer described in multilayer is nested.
Specifically, photoactive layer described in the internal layer wrapping layer integral coating of layer is wrapped described in multilayer, wraps layer described in multilayer
Outer layer wrapping layer at least partly coat the photoactive layer.
Further, the perovskite thin film solar battery includes: the preceding base arranged from first direction towards second direction
Plate layer, including transparent conducting oxide layer, the photoactive layer, rear metal electrode and metacoxal plate layer, the wrapping of the internal layer wrapping layer
Layer ontology is arranged between the photoactive layer, the including transparent conducting oxide layer, and the perisphere of the internal layer wrapping layer is at least
The photoactive layer is coated, the wrapping layer ontology of the outer layer wrapping layer is arranged in the preceding substrate layer, the electrically conducting transparent oxygen
Between compound layer, the perisphere of the outer layer wrapping layer at least partly coats the photoactive layer.
Specifically, the internal layer wrapping layer is the first charge transfer layer, and the internal layer wrapping layer also coats the rear metal
Electrode, the metacoxal plate layer.
Further, the outer layer wrapping layer is antireflection layer, and the outer layer wrapping layer also coats the electrically conducting transparent oxygen
Compound layer, the internal layer wrap layer.
Further, the second charge transfer layer is provided between the photoactive layer, the rear metal electrode.
Specifically, the perovskite thin film solar battery further includes encapsulated layer, and the encapsulated layer is arranged in the preceding base
Between plate layer, outer layer wrapping layer.
Optionally, the antireflection layer is single antireflection layer or multilayer antireflection layer, and the refraction of the antireflection layer
Rate is 1.6~1.9.
Optionally, the antireflection layer is single layer Al2O3Layer or single layer SiOxNyLayer or Al2O3Layer, SiOxNyPair of layer composition
Layer structure.
Optionally, the preceding substrate layer and the metacoxal plate layer are glass substrate.
Compared with the existing technology, perovskite thin film solar battery of the present invention has the advantage that
Perovskite thin film solar battery of the present invention coats photoactive layer by setting wrapping layer, can be living by light
Property layer and external moisture, gas-insulated, to guarantee the functional of photoactive layer, photoactive layer is avoided to deteriorate, in this way, light
Active layer can convert light energy into electric energy after absorbing luminous energy to the maximum extent.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the first embodiment schematic diagram of the perovskite thin film solar battery of the embodiment of the present invention；
Fig. 2 is the second embodiment schematic diagram of the perovskite thin film solar battery of the embodiment of the present invention；
Fig. 3 is SiOxNyThe content of middle N and the graph of relation of refractive index；
Fig. 4 is SiOxNyThe content of middle N and the graph of relation of Jph；
Fig. 5 is SiOxNyInfluence curve figure of the thickness of layer to Jph；
Fig. 6 is Al2O3Influence curve figure of the thickness of layer to Jph；
Fig. 7 is that have the photogenerated current Jph of the perovskite thin film solar battery of double-layer reflection-decreasing layer and different Al2O3、
SiOxNyThe relational graph of thickness combination.
Description of symbols:
Perovskite thin film solar battery 10, photoactive layer 1, preceding substrate layer 2, including transparent conducting oxide layer 3, rear metal electricity
Pole 4, metacoxal plate layer 5, encapsulated layer 6, wrapping layer 7, internal layer wrapping layer (the first charge transfer layer) 71, outer layer wrap layer (antireflective
Layer) the 72, second charge transfer layer 8.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Come that the present invention will be described in detail below with reference to Fig. 1-Fig. 7 and in conjunction with the embodiments.
Referring to Fig.1 shown in-Fig. 2, perovskite thin film solar battery 10 according to an embodiment of the present invention includes: stacked more
One functional layer, in multiple function layers wherein one layer be photoactive layer 1, removed in multiple function layers photoactive layer 1 it is other extremely
A few one functional layer is configured to wrapping layer 7, and wrapping layer 7 includes: to serve as the wrapping layer ontology 711,721 of overlapping part and from packet
The perisphere 712,722 that at least partly edge of winding layer ontology extends, wraps layer ontology and perisphere surrounds photoactive layer 1
At least three sides, by photoactive layer 1 and extraneous moisture and/or gas barrier.Preferably, layer ontology and perisphere are wrapped
Six sides for surrounding photoactive layer 1 are in photoactive layer 1 in the environment being completely closed, and isolation effect is more preferable.
In an embodiment of the present invention, photoactive layer 1 is calcium titanium ore bed, and photoactive layer 1 can be by the sunlight luminous energy of absorption
It is converted into electric energy, is used with power supply component.Photoactive layer 1 made of perovskite material is touching extraneous moisture or gas
When its performance can accelerate to deteriorate, therefore, can be to avoid extraneous gas or moisture after coating photoactive layer 1 using wrapping layer 7
1 performance of photoactive layer is influenced in into photoactive layer 1, to guarantee that photoactive layer 1 can convert light energy into electricity to the maximum extent
Energy.
Perovskite thin film solar battery 10 according to an embodiment of the present invention coats photoactive layer by setting wrapping layer 7
1, photoactive layer 1 and external moisture, gas-insulated to guarantee the functional of photoactive layer 1, can be avoided photoactive layer
1 deteriorates, in this way, photoactive layer 1 can convert light energy into electric energy, high conversion efficiency after absorbing luminous energy to the maximum extent.
Embodiment shown in referring to Fig.1, wrapping layer 7 is one layer, and wraps 7 integral coating photoactive layer 1 of layer, by photolytic activity
Layer 1 completely cuts off completely with external moisture, gas.
Specifically, perovskite thin film solar battery 10 includes: the preceding substrate arranged from first direction towards second direction
Layer 2, including transparent conducting oxide layer 3 (abbreviation TCO), photoactive layer 1, rear metal electrode 4 and metacoxal plate layer 5 wrap the wrapping of layer 7
Layer ontology 711 is arranged between photoactive layer 1, rear metal electrode 4, and the perisphere 712 of wrapping layer 7 at least coats photoactive layer 1.
Further, in the embodiment shown in fig. 1, wrapping layer 7 is the first charge transfer layer, that is to say, that wrapping layer 7
Electric charge transfer function is had both, the first charge transfer layer can realize that the charge between photoactive layer 1, rear metal electrode 4 turns as a result,
It moves.Substrate layer 2, including transparent conducting oxide layer 3 before wrapping layer 7 also coats, make photoactive layer 1, preceding substrate layer 2, electrically conducting transparent oxygen
Compound layer 3 with external moisture, gas-insulated open.
Further, it is provided with the second charge transfer layer 8 between including transparent conducting oxide layer 3, photoactive layer 1, thus may be used
Realize the electric charge transfer between including transparent conducting oxide layer 3, photoactive layer 1.
Optionally, antireflection layer 72 is provided between preceding substrate layer 2 and including transparent conducting oxide layer 3.Antireflection layer 72 is used
In reducing the reflectivity by the incident sunlight of preceding substrate layer 2, so that sunlight be made more to enter the perovskite thin film sun
In energy battery 10.The incident direction of sunlight is as shown by the arrows in Figure 1.
Further, perovskite thin film solar battery 10 further include: encapsulated layer 6, encapsulated layer 6 are arranged in rear metal electrode
4, between metacoxal plate layer 5.
As shown in Figure 1, antireflection layer 72, including transparent conducting oxide layer 3, the second charge transfer layer 8, photoactive layer 1, first
Before charge transfer layer 71, rear metal electrode 4, encapsulated layer 6 and metacoxal plate layer 5 are sequentially formed on substrate layer 2.
Referring to embodiment shown in Fig. 2, wrapping layer 7 is multilayer, and multilayer wrapping layer 7 is nested.
Specifically, in the embodiment shown in Figure 2, multilayer wrapping layer 7 is inside and outside two layers, and multilayer wraps the internal layer packet of layer 7
71 integral coating photoactive layer 1 of winding layer, to be coated for the first time to photoactive layer 1, multilayer wrap layer 7 outer layer wrap layer 72 to
It partially coats photoactive layer 1 and internal layer wraps layer 71, to carry out secondary cladding to photoactive layer 1.It is common that multilayer wraps layer 7
Effect completely cuts off photoactive layer 1 and external moisture, gas completely, and it is more preferable to completely cut off effect.In Fig. 2, outer layer wraps layer 72
The upper surface for not coating photoactive layer 1 and internal layer wrapping layer 71, has only coated other five sides.In some preferred implementations
In example, outer layer wraps the cladding photoactive layer 1 and internal layer completely of layer 72 and wraps layer 71.
Further, perovskite thin film solar battery 10 shown in Fig. 2 includes: to arrange from first direction towards second direction
Preceding substrate layer 2, including transparent conducting oxide layer 3, photoactive layer 1, rear metal electrode 4 and metacoxal plate layer 5, internal layer wraps layer 71
Wrap layer ontology 711 be arranged between photoactive layer 1, including transparent conducting oxide layer 3, internal layer wrap layer 71 perisphere 712 to
Photoactive layer 1 is coated less, and the wrapping layer ontology 721 that outer layer wraps layer 72 is arranged in preceding substrate layer 2, including transparent conducting oxide layer 3
Between, the perisphere 722 of outer layer wrapping layer 72 at least partly coats photoactive layer 1.
Specifically, internal layer wrapping layer 71 is the first charge transfer layer 71, and the first charge transfer layer 71 can realize photoactive layer
1, the electric charge transfer between including transparent conducting oxide layer 3.Metal electrode 4, metacoxal plate layer 5 after internal layer wrapping layer 71 also coats, make
Photoactive layer 1, rear metal electrode 4, metacoxal plate layer 5 with external moisture, gas-insulated open.
Further, outer layer wrapping layer 72 is antireflection layer 72, and outer layer wrapping layer 72 also coats including transparent conducting oxide layer
3, internal layer wraps layer 71.Photoactive layer 1 is covered simultaneously by the first charge transfer layer 71 and antireflection layer 72, to more effectively prevent
Only external moisture and gas penetrate into the perovskite of photoactive layer 1.
Further, it is provided with the second charge transfer layer 8 between photoactive layer 1, rear metal electrode 4, thus can realize light
Electric charge transfer between active layer 1, rear metal electrode 4.
Specifically, perovskite thin film solar battery 10 further include: encapsulated layer 6, encapsulated layer 6 are arranged in preceding substrate layer 2, outside
Between layer wrapping layer 72.In other words, antireflection layer 72 is arranged between encapsulated layer 6 and including transparent conducting oxide layer 3, and antireflective
Layer 72 coats including transparent conducting oxide layer 3 to all layers between metacoxal plate layer 5, protects these layer (i.e. transparent conductive oxides
Layer the 3, first charge transfer layer 71, photoactive layer 1, the second charge transfer layer 8, rear metal electrode 4, metacoxal plate layer 5) from outside
Moisture or gas influence.The first charge transfer layer 71 cladding light between including transparent conducting oxide layer 3 and photoactive layer 1 is living
Property layer 1 to all layers between metacoxal plate layer 5, protect these layers (i.e. photoactive layer 1, the second charge transfer layer 8, rear metal electricity
Pole 4, metacoxal plate layer 5) from outside moisture or gas influence.Photoactive layer 1 is by the first charge transfer layer 71, antireflection layer
72 2 claddings, the effect for completely cutting off moisture or gas are more preferable.
As shown in Fig. 2, rear metal electrode 4, the second charge transfer layer 8, photoactive layer 1, the first charge transfer layer 71, transparent
Conductive oxide layer 3, antireflection layer 72, encapsulated layer 6 and preceding substrate layer 2 are sequentially formed on metacoxal plate layer 5.
Perovskite thin film solar battery 10 shown in Fig. 2 is in forming process, when heavy after forming photoactive layer 1
When the first charge transfer layer 71 of product, film (i.e. the first charge of covering photoactive layer 1 is formed by ALD (atomic layer deposition) technique
Transfer layer 71), at this point, TiO2It can be used as the material of the first charge transfer layer 71.It is then possible to using such as sputter, evaporate and
The techniques such as ALD deposit including transparent conducting oxide layer 3, and when depositing antireflection layer 72, and using ITO, AZO be (Al doping
ZnO), (F adulterates SnO to FTO2) it is used as material, as described above, surrounding the technique one of photoactive layer 1 with the first charge transfer layer 71
Sample makes antireflection layer 72 surround photoactive layer 1.Antireflection layer 72 can be deposited as single layer Al2O3Or single layer SiOxNyOr by them
The double-layer structure of the two composition.
Referring to Fig.1 shown in-Fig. 2, the side towards sunlight of including transparent conducting oxide layer 3 is arranged in antireflection layer 72,
And the greater band gap of antireflection layer 72, antireflection layer 72 have antiradar reflectivity, low absorptivity and high refractive index characteristic, guarantee the sun
Light more penetrates antireflection layer 72, and including transparent conducting oxide layer 3 is made to obtain higher photoelectric current.
Optionally, antireflection layer 72 is single antireflection layer or multilayer antireflection layer, and the refractive index model of antireflection layer 72
Enclosing is 1.6~1.9, and the direction of illumination of sunlight is as shown in the arrow in Fig. 1-Fig. 2, i.e., the direction of sunlight is from preceding substrate layer
2 directions that substrate layer 5 irradiates backward.The refractive index of antireflection layer 72 is 1.6~1.9, it is ensured that too by antireflection layer 72
The amount that sunlight is reflected is seldom, and the overwhelming majority, which is refracted, is transferred to including transparent conducting oxide layer 3, and then reaches photoactive layer 1 and join
With photoelectric conversion.
In an actual embodiment, selection suitable material for make wrapping layer 7 so that wrapping layer 7 have anti-gas or
Anti- moisture function, the selection of material are based on its refractive index and moisture-vapor transmission (WVTR) characteristic.
The refractive index and WVTR of 1 multiple material of table
The theoretical calculation formula of the refractive index of antireflection layer 72 are as follows:Thus it obtains
The best refractive index value of antireflection layer 72, when antireflection layer 72 is single antireflection layer, best refractive index value n=1.82, when
When antireflection layer 72 is double-layer reflection-decreasing layer, the best refractive index value n1=1.66 of first layer, the best refractive index value of the second layer
N2=1.86.
Optionally, antireflection layer 72 is single layer Al2O3Layer or single layer SiOxNyLayer or Al2O3Layer, SiOxNyThe bilayer of layer composition
Structure.Antireflection layer 72 can improve the reflectivity of perovskite thin film solar battery 10, that is, reduce the reflectivity to sunlight, mention
Height improves the photoelectric conversion of perovskite thin film solar battery 10 to the refractive index of sunlight to promote the utilization rate of sunlight
Efficiency.
For containing SiOxNyAntireflection layer 72 for, the variations in refractive index of antireflection layer 72 depends on SiOxNyMiddle N member
The content of element, from the figure 3, it may be seen that when the content of N element changes between 0%-80%, the variations in refractive index model of antireflection layer 72
It encloses for 1.48-1.88, and refractive index is approximate with the content of N element is positively correlated.
The photogenerated current of perovskite thin film solar battery 10 is Jph, SiOxNyThe content of middle N element also has shadow to Jph
It rings, it is specific as shown in Figure 4.As shown in Figure 4, the variation of photogenerated current Jph depends on SiOxNyThe content of middle N element, works as N element
Content approximation at 60%, Jph highest.At this point, SiOxNyLayer with a thickness of 100nm.By AlOxIt is 60% with N element content
SiOxNyThe optimal layer thickness of layer is modeled as single antireflection layer, guarantees photogenerated current Jph higher.
Fig. 5-Fig. 6 indicates, the photogenerated current Jph of perovskite thin film solar battery 10 depends on thickness degree, in Fig. 5-Fig. 6
Reference configuration (Ref.) be not provided with antireflection layer 72, Jph between preceding substrate layer 2 and including transparent conducting oxide layer 3
It is smaller.By Fig. 5-Fig. 6 the result shows that, in SiOxNyWith a thickness of 80nm and Al2O3Under conditions of 100nm, it is available most
Good Jph value.Compared with the Jph (not having antireflection layer 72) of reference, it is arranged after antireflection layer 72, Jph is shown a maximum of about of
0.7mA/cm2Increase.Assuming that this can cause efficiency to increase in other identical situations of cell parameters (such as Voc and FF)
Add about 0.7%, is 18.06% (Jsc=22.05mA/cm with reference to efficiency2, Voc=1.05V, FF=78%), setting subtracts as a result,
Such as SiO after reflecting layer 72xNyWith a thickness of 75nm (Jsc=22.87mA/cm2, Voc=1.05V, FF=78%) when, efficiency
It is 18.73%.
Fig. 7 is that have the photogenerated current Jph of the perovskite thin film solar battery 10 of double-layer reflection-decreasing layer and different Al2O3、
SiOxNyThe relationship of thickness combination.
Reference configuration (Ref.) in Fig. 7 is to be not provided with anti-reflection between preceding substrate layer 2 and including transparent conducting oxide layer 3
Layer 72 is penetrated, Jph is smaller.As shown in Figure 7, the Jph of the perovskite thin film solar battery 10 with double-layer reflection-decreasing layer is higher than
The Jph of reference configuration, and it is higher than the Jph of single antireflection layer.In SiOxNyWith a thickness of 80nm and Al2O3With a thickness of 90nm's
Under the conditions of, maximum Jph value nearly reaches 23mA/cm2。
Optionally, preceding substrate layer 2 and metacoxal plate layer 5 are glass substrate, and preceding substrate layer 2 and metacoxal plate layer 5 can be right as a result,
Other functional layers are preferably supported.
In embodiments of the present invention, the first charge transfer layer 71, the second charge transfer layer 8 can be hole transmission layer or electricity
Sub- transport layer.
It is internal with antireflection layer 72 for perovskite thin film solar battery 10 according to an embodiment of the present invention, guarantees calcium titanium
Mine thin-film solar cells 10 has lower light reflectivity, meanwhile, photoactive layer 1 is by the first charge transfer layer 71 and/or subtracts
Reflecting layer 72 coats, and guarantees the reliability with higher of perovskite thin film solar battery 10.Further, since wrapping layer 7 is by the
One charge transfer layer 71 and/or antireflection layer 72 serve as, without the use of additional material and technique, therefore be conducive to save at
This.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of perovskite thin film solar battery (10) characterized by comprising stacked multiple function layers, described in multilayer
In functional layer wherein one layer be photoactive layer (1), removed in functional layer described in multilayer the photoactive layer (1) it is other at least
One one functional layer is configured to wrapping layer (7), and wrapping layer (7) includes: to serve as the wrapping layer ontology of overlapping part and from institute
The perisphere that at least partly edge of wrapping layer ontology extends is stated, the wrapping layer ontology and the perisphere surround the light
At least three sides of active layer (1).
2. perovskite thin film solar battery (10) according to claim 1, which is characterized in that the wrapping layer (7) is
One layer, and photoactive layer (1) described in wrapping layer (7) integral coating.
3. perovskite thin film solar battery (10) according to claim 1 characterized by comprising from first direction
Preceding substrate layer (2), the including transparent conducting oxide layer (3), the photoactive layer (1), rear metal electrode arranged towards second direction
(4), the wrapping layer ontology of encapsulated layer (6) and metacoxal plate layer (5), wrapping layer (7) is arranged in the photoactive layer (1), institute
It states between rear metal electrode (4), the perisphere of wrapping layer (7) at least coats the photoactive layer (1).
4. perovskite thin film solar battery (10) according to claim 3, which is characterized in that the wrapping layer (7) is
First charge transfer layer, the wrapping layer (7) also coat the preceding substrate layer (2), the including transparent conducting oxide layer (3).
5. perovskite thin film solar battery (10) according to claim 3 or 4, which is characterized in that the electrically conducting transparent
Be provided with second charge transfer layer (8) between oxide skin(coating) (3), the photoactive layer (1), the preceding substrate layer (2) with
Antireflection layer (72) are provided between the including transparent conducting oxide layer (3).
6. perovskite thin film solar battery (10) according to claim 1, which is characterized in that the wrapping layer (7) is
Multilayer, and wrapping layer (7) described in multilayer is nested, the internal layer of wrapping layer (7) described in multilayer wraps layer (71) integral coating institute
It states photoactive layer (1), outer layer wrapping layer (72) that layer (7) are wrapped described in multilayer at least partly coats the photoactive layer (1).
7. perovskite thin film solar battery (10) according to claim 6 characterized by comprising from first direction
Towards second direction arrange preceding substrate layer (2), encapsulated layer (6), including transparent conducting oxide layer (3), the photoactive layer (1), after
Metal electrode (4) and metacoxal plate layer (5) are provided with the second charge between the photoactive layer (1), the rear metal electrode (4)
The wrapping layer ontology of transfer layer (8), internal layer wrapping layer (71) is arranged in the photoactive layer (1), the electrically conducting transparent oxygen
Between compound layer (3), the perisphere of internal layer wrapping layer (71) is at least coated the photoactive layer (1), the outer layer wrapping
The wrapping layer ontology of layer (72) is arranged between the encapsulated layer (6), the including transparent conducting oxide layer (3), the outer layer packet
The perisphere of winding layer (72) at least partly coats the photoactive layer (1).
8. perovskite thin film solar battery (10) according to claim 7, which is characterized in that the internal layer wraps layer
It (71) is the first charge transfer layer, internal layer wrapping layer (71) also coats the rear metal electrode (4), the metacoxal plate layer
(5)；Outer layer wrapping layer (72) is antireflection layer, and outer layer wrapping layer (72) also coats the including transparent conducting oxide layer
(3), internal layer wrapping layer (71).
9. perovskite thin film solar battery (10) according to claim 5 or 8, which is characterized in that the antireflection layer
It (72) is single antireflection layer or multilayer antireflection layer, and the refractive index of the antireflection layer (72) is 1.6~1.9.
10. perovskite thin film solar battery (10) according to claim 5 or 8, which is characterized in that the antireflection layer
It (72) is single layer Al2O3Layer or single layer SiOxNyLayer or Al2O3Layer, SiOxNyThe double-layer structure of layer composition.
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| WO2023216131A1 (en) * | 2022-05-11 | 2023-11-16 | 宁德时代新能源科技股份有限公司 | Perovskite solar cell and preparation method therefor |
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| CN207441751U (en) * | 2017-12-07 | 2018-06-01 | 湖南师范大学 | A kind of homojunction perovskite thin film solar cell |
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| CN207441751U (en) * | 2017-12-07 | 2018-06-01 | 湖南师范大学 | A kind of homojunction perovskite thin film solar cell |
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| WO2023216131A1 (en) * | 2022-05-11 | 2023-11-16 | 宁德时代新能源科技股份有限公司 | Perovskite solar cell and preparation method therefor |
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