CN208923169U - A kind of high stability solar battery - Google Patents
A kind of high stability solar battery Download PDFInfo
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- CN208923169U CN208923169U CN201821983364.6U CN201821983364U CN208923169U CN 208923169 U CN208923169 U CN 208923169U CN 201821983364 U CN201821983364 U CN 201821983364U CN 208923169 U CN208923169 U CN 208923169U
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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
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- 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
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Abstract
The utility model discloses a kind of high stability solar batteries, including encapsulated layer, glassy layer, barrier layer, first electrode layer, electron transfer layer, inorganic perovskite active layer, hole transmission layer and the second electrode lay, wherein, glassy layer, first electrode layer, electron transfer layer, inorganic perovskite active layer, hole transmission layer, barrier layer and the second electrode lay are sequentially distributed from bottom to top, encapsulated layer is located on glassy layer, and encapsulated layer is coated on barrier layer, first electrode layer, electron transfer layer, inorganic perovskite active layer, outside hole transmission layer and the second electrode lay, the stability of the battery is preferable.
Description
Technical field
The utility model belongs to the design of thin-film solar cells device and preparation field, is related to a kind of high stability solar energy
Battery.
Background technique
As the increasingly depleted of fossil energy uses brought high Environmental costs with it, renewable and clean energy resource
Development and utilization is widely paid close attention to.Solar photovoltaic technology and product are grown at top speed in the world,
As most potential clean energy resource.The Ca-Ti ore type solar battery of discovered in recent years is due to high conversion efficiency, low cost, ring
The advantages that border is friendly, bendable commercialization is concerned.
But, in current R&D process both domestic and external, it has been found that the Ca-Ti ore type solar battery of most of structure
Although can be relatively easy to obtain higher photoelectric conversion efficiency, after testing and saving longer period of time, electricity
The efficiency of pond device can occur significantly to decline.Therefore stability difference is to influence Ca-Ti ore type solar battery to move towards practicalization and answer
One of maximum obstruction.Ca-Ti ore type solar cell stability is bad, at least the combined influence by following factor:
It is usually using more perovskite material sheet first as inorganic-organic hybridization structure, organic group therein is vulnerable to ring
Border Zhong Shui, oxygen and ultraviolet radiation etc. influence and aging occur, goes bad；Secondly, the hole transmission layer of high efficiency battery uses more
Organic material such as Spiro-OMeTAD etc., and the weatherability of actually this material is not good enough yet, and if inorganic using CuSCN etc.
Material then needs to optimize on battery structure, guarantees that with it electrochemistry does not occur for the metals such as gold, silver while reducing potential barrier
Reaction.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of high stability solar-electricity
The stability in pond, the battery is preferable.
In order to achieve the above objectives, high stability solar battery described in the utility model includes encapsulated layer, glassy layer, resistance
Interlayer, first electrode layer, electron transfer layer, inorganic perovskite active layer, hole transmission layer and the second electrode lay, wherein glass
Layer, first electrode layer, electron transfer layer, inorganic perovskite active layer, hole transmission layer, barrier layer and the second electrode lay under to
On be sequentially distributed, encapsulated layer is located on glassy layer, and encapsulated layer is coated on barrier layer, first electrode layer, electron transfer layer, inorganic
Outside perovskite active layer, hole transmission layer and the second electrode lay.
Electron transfer layer with a thickness of 25nm.
Inorganic perovskite active layer with a thickness of 600nm.
Hole transmission layer with a thickness of 50nm.
Barrier layer with a thickness of 5-20nm.
The second electrode lay with a thickness of 60-200nm.
Encapsulated layer with a thickness of 15-20nm.
The bottom of glassy layer is provided with Reflector Panel, wherein sunlight light is divided into two-way, wherein direct irradiation exists all the way
On glassy layer, another way is incident on glassy layer after Reflector Panel reflects.
It further include controller and the driving device for driving glassy layer to rotate, wherein the output end of controller and driving fill
The control terminal set is connected.
The utility model has the following beneficial effects:
High stability solar battery described in the utility model includes encapsulated layer, glassy layer, barrier layer, first electrode
Layer, electron transfer layer, inorganic perovskite active layer, hole transmission layer and the second electrode lay, wherein barrier layer is located at hole transport
Between layer and the second electrode lay, to obstruct hole transmission layer and the second electrode lay, guarantee the second electrode lay not with hole transmission layer
Electrochemical reaction occurs, in addition, encapsulated layer is located on glassy layer in the utility model, and is coated on first electrode layer, electronics biography
It is entire to play the effect of final encapsulation outside defeated layer, inorganic perovskite active layer, hole transmission layer and the second electrode lay
Device barrier water, oxygen etc. are easy to cause the factor of cell degradation, further increase the stability of solar battery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 it is glassy layer, 2 be first electrode layer, 3 be electron transfer layer, 4 be inorganic perovskite active layer, 5 is empty
Cave transport layer, 6 be barrier layer, 7 be the second electrode lay, 8 be encapsulated layer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, high stability solar battery described in the utility model includes encapsulated layer 8, glassy layer 1, barrier
Layer 6, first electrode layer 2, electron transfer layer 3, inorganic perovskite active layer 4, hole transmission layer 5 and the second electrode lay 7, wherein
Glassy layer 1, first electrode layer 2, electron transfer layer 3, inorganic perovskite active layer 4, hole transmission layer 5, barrier layer 6 and the second electricity
Pole layer 7 is sequentially distributed from bottom to top, and encapsulated layer 8 is located on glassy layer 1, and encapsulated layer 8 is coated on barrier layer 6, first electrode layer
2, outside electron transfer layer 3, inorganic perovskite active layer 4, hole transmission layer 5 and the second electrode lay 7.
The material of first electrode layer 2 is ITO, FTO or AZO, and is prepared on glassy layer 1 using sedimentation.
The material of electron transfer layer 3 is tin oxide or titanium oxide, wherein tin oxide can be relatively easy to be prepared into flat
Face film, thickness is uniform and electronic conductivity is good, more matches with the energy level of inorganic perovskite active layer 4, battery can be improved
Final efficiency.In addition, the property of electron transfer layer 3 is stablized, and titanium oxide is vulnerable to ultraviolet light relative to common titanium oxide
It influences and performance is caused to decline, therefore preferably material of the tin oxide as electron transfer layer 3, and electron transfer layer 3 is using former
Son deposition, vapor deposition, magnetron sputtering or the method for solution spin coating are prepared, it is preferred that are prepared using solution spin coating method
Electron transfer layer 3, in the preparation, by tin oxide nano particle (diameter 2-20nm) suspension of commercialization directly as spin coating
Liquid, on the first electrode layer 2 with 2000-6000rpm, the spin coating parameters of 30-80s carry out the preparation of electron transfer layer 3, wherein
Electron transfer layer 3 with a thickness of 10-45nm, it is preferred that use 3500rpm, the electricity that the spin coating parameters of 60s obtain with a thickness of 25nm
Sub- transmitting layer 3 in addition, the tin oxide nano particle of commercialization is easy to extensive, synthesizes at low cost, while can use volume pair
Technology of preparing is rolled up, such as slot coated, blade coating, silk-screen printing, intaglio printing, ink-jet application and ink jet printing are advised greatly
Mould production.
The material of inorganic perovskite active layer 4 is ABXnY3-n, wherein A=Cs or Rb；B=Pb or Sn；X=I, Cl or
Br；Y=I, Cl or Br；N is the real number of 0-3, and inorganic perovskite active layer material is relative to traditional hybrid inorganic-organic calcium titanium
Mine active layer material, due to the organic group without stability difference and vulnerable to water, oxygen and influence of ultraviolet light, high stability；Together
When due to selecting energy level suitable and matched electrons transmit layer material, photoelectric conversion performance is also very outstanding.Preferably, nothing
The material of machine perovskite active layer 4 is CsPbI3, it generallys use spin-coating method, vapor deposition or magnetically controlled sputter method and is prepared,
It can also be prepared, i.e., be applied the slurry of active material by slit using the roll-to-roll process suitable for large scale preparation
Cloth, blade coating, silk-screen printing, intaglio printing, ink-jet application or the method for ink jet printing are formed.Preferably, in solution spin coating
Its solvent is DMF/DMSO, the volume ratio 4:1 of DMF/DMSO in method, and perovskite is made into the slurry that mass fraction is 30-55%
Material, preferably 40%；With 1500-3500rpm in substrate, the spin coating parameters of 40-80s carry out different-thickness calcium titanium ore bed
Preparation, it is preferred that use 2500rpm, the spin coating parameters of 60s can obtain the calcium titanium ore bed with a thickness of 600nm or so, then pass through
100-165 DEG C of annealing 30min, obtains inorganic perovskite active layer 4 by preferably 135 DEG C.
The material of hole transmission layer 5 is the inorganic hole transporter to match with perovskite active material energy level, such as
The inorganic salt compound of monovalence cuprous ion, such as cuprous rhodanide and cuprous iodide, preferably cuprous rhodanide.Opposite this field
5 material of the hole transmission layers such as common Spiro-OMeTAD, PEDOT:PSS, the physics and chemical property of inorganic salts are more stable,
Weatherability under strong ultraviolet light environments is remarkably reinforced, and cost is very low, while final battery efficiency has no significant decrease.It is making
When standby, the hole transmission layer 5 of cuprous rhodanide material can be used solution spin-coating method and be prepared, specifically, by cuprous rhodanide
Be made into mass fraction be 2-10% slurry, preferably 3%, solvent is diethyl sulfide；With 3000-6000rpm, 30- in substrate
The spin coating parameters of 60s carry out the preparation of the hole transmission layer 5, hole transmission layer 5 with a thickness of 30-100nm, it is preferred that use
The hole transmission layer 5 that the spin coating parameters of 5000rpm, 45s obtain with a thickness of 50nm.
When the material of the second electrode lay 7 is gold, silver or copper, to prevent metal and cuprous rhodanide from electrochemical oxidation occurs
Reduction reaction needs that barrier layer 6 is arranged between the second electrode lay 7 and hole transmission layer 5；When the material of the second electrode lay 7 is
When carbon, then do not need to prepare the barrier layer 6.Wherein, the material of barrier layer 6 is the graphene oxide (r-GO) through restoring, warp
The graphene oxide of reduction has good electric conductivity and physics, chemistry, electricity inertia, and property is very steady under normal conditions
It is fixed, it can effectively prevent the metal simple-substances such as gold, silver and internal layer substance (such as element sulphur) that oxygen occurs in energization
Change reduction reaction, while by regulation, energy level is between hole transmission layer and metal electrode, to the efficiency shadow of electric current transmission
Ring very little；Barrier layer 6 can be used solution spin-coating method and be prepared, specifically, by r-GO (0.1-1 μm of diameter, thickness is less than 2nm)
It is made into the slurry of 0.5-3mg/mL, preferably 1mg/mL, solvent is chlorobenzene；With 2000-4000rpm, the rotation of 30-60s in substrate
Apply parameter carry out barrier layer 6 preparation, barrier layer 6 with a thickness of 5-20nm；Particularly, using 3000rpm, the spin coating of 60s is joined
The barrier layer 6 that number obtains with a thickness of 10nm.
The material of the second electrode lay 7 is silver, gold, copper or carbon, preferably silver, when the second electrode lay 7 selects silver-colored material, then may be used
It is directly prepared using thermal evaporation deposition, the thickness of the second electrode lay 7 optional 60-200nm, preferably 100nm.
Encapsulated layer 8 is located on glassy layer 1, and is coated on first electrode layer 2, electron transfer layer 3, inorganic perovskite active layer
4, outside hole transmission layer 5 and the second electrode lay 7, encapsulated layer 8 plays final packaging effect, obstructs water, oxygen etc. for entire device
It is easy to cause the factor of cell degradation, further increases the stability of integral device, the material of encapsulated layer 8 is aluminium oxide, and is sealed
Dress layer 8 is prepared using atomic layer deposition method, specifically, two kinds of reaction gas are respectively nitrogen (N2, purity >=
99.999%) trimethyl aluminium (Al (CH is carried3)3) and water (H2O), the two is alternately filled with reaction chamber in the form of a pulse, when pulse
Between preferred 0.015s, residence time 60s, alternately once for one circulation, the oxygen of different-thickness is prepared using 50-300 circulation
Change aluminium layer, preferably 100 times, the encapsulated layer 8 with a thickness of 15-20nm is made.In addition, encapsulated layer 8 in combination with EVA, ultraviolet packaging plastic,
The conventional encapsulation materials such as organic silica gel are further encapsulated, and will significantly improve packaging effect relative to conventional encapsulating method.
In addition, it is necessary to explanation, controller is rotated according to current time by driving device electric driven glass layer, so that too
Sunlight ray is vertical with the holding of glass layer plane, while by reflection of the Reflector Panel to part sunlight light, to improve too
The generated energy of positive energy battery.
Claims (9)
1. a kind of high stability solar battery, which is characterized in that including encapsulated layer (8), glassy layer (1), barrier layer (6),
One electrode layer (2), electron transfer layer (3), inorganic perovskite active layer (4), hole transmission layer (5) and the second electrode lay (7),
In, glassy layer (1), first electrode layer (2), electron transfer layer (3), inorganic perovskite active layer (4), hole transmission layer (5), resistance
Interlayer (6) and the second electrode lay (7) are sequentially distributed from bottom to top, and encapsulated layer (8) is located on glassy layer (1), and encapsulated layer (8) wraps
Be overlying on barrier layer (6), first electrode layer (2), electron transfer layer (3), inorganic perovskite active layer (4), hole transmission layer (5) and
The second electrode lay (7) is outside.
2. high stability solar battery according to claim 1, which is characterized in that electron transfer layer (3) with a thickness of
25nm。
3. high stability solar battery according to claim 1, which is characterized in that inorganic perovskite active layer (4)
With a thickness of 600nm.
4. high stability solar battery according to claim 1, which is characterized in that hole transmission layer (5) with a thickness of
50nm。
5. high stability solar battery according to claim 1, which is characterized in that barrier layer (6) with a thickness of 5-
20nm。
6. high stability solar battery according to claim 1, which is characterized in that the second electrode lay (7) with a thickness of
60-200nm。
7. high stability solar battery according to claim 1, which is characterized in that encapsulated layer (8) with a thickness of 15-
20nm。
8. high stability solar battery according to claim 1, which is characterized in that the bottom of glassy layer is provided with reflection
Panel, wherein sunlight light is divided into two-way, wherein on glassy layer, another way reflects direct irradiation through Reflector Panel all the way
After be incident on glassy layer.
9. high stability solar battery according to claim 1, which is characterized in that further include controller and for driving
The driving device of glassy layer rotation, wherein the output end of controller is connected with the control terminal of driving device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821983364.6U CN208923169U (en) | 2018-11-28 | 2018-11-28 | A kind of high stability solar battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821983364.6U CN208923169U (en) | 2018-11-28 | 2018-11-28 | A kind of high stability solar battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390425A (en) * | 2018-11-28 | 2019-02-26 | 中国华能集团有限公司 | A kind of high stability solar battery |
| CN110246968A (en) * | 2019-06-17 | 2019-09-17 | 中国华能集团有限公司 | A kind of perovskite solar battery of two sides light |
-
2018
- 2018-11-28 CN CN201821983364.6U patent/CN208923169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390425A (en) * | 2018-11-28 | 2019-02-26 | 中国华能集团有限公司 | A kind of high stability solar battery |
| CN110246968A (en) * | 2019-06-17 | 2019-09-17 | 中国华能集团有限公司 | A kind of perovskite solar battery of two sides light |
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