CN108493344A - Shell-and-core structure perovskite nano-wire array solar cell - Google Patents
Shell-and-core structure perovskite nano-wire array solar cell Download PDFInfo
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- CN108493344A CN108493344A CN201810339725.1A CN201810339725A CN108493344A CN 108493344 A CN108493344 A CN 108493344A CN 201810339725 A CN201810339725 A CN 201810339725A CN 108493344 A CN108493344 A CN 108493344A
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- shell
- solar cell
- electrode
- core structure
- wire array
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- 239000002070 nanowire Substances 0.000 title claims abstract description 17
- 239000011521 glass Substances 0.000 claims description 3
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 7
- 230000006798 recombination Effects 0.000 abstract description 4
- 238000005215 recombination Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 7
- 230000032258 transport Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- WILFBXOGIULNAF-UHFFFAOYSA-N copper sulfanylidenetin zinc Chemical compound [Sn]=S.[Zn].[Cu] WILFBXOGIULNAF-UHFFFAOYSA-N 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- H10K30/10—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
-
- 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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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of shell-and-core structure perovskite nano-wire array solar cells, including the top electrode being oppositely arranged and lower electrode, the top of the lower electrode is provided with sandwich layer, the sandwich layer include stratiform base portion and array distribution base upper surface columnar part, it is provided between the sandwich layer and top electrode using shell made of perovskite, the shell is coated and is fitted on sandwich layer, and the lower surface of the top electrode is bonded with the upper surface of shell.Using shell-and-core structure perovskite nano-wire array solar cell provided by the invention, structure novel, it is easy to accomplish, Carrier recombination rate is reduced, efficient carrier concentration is improved, shortens carrier transport path, to greatly improve electricity conversion.
Description
Technical field
The invention belongs to solar energy generation technology fields, and in particular to a kind of shell-and-core structure perovskite nano-wire array sun
It can battery.
Background technology
The energy is the material base that human society is depended on for existence and development, and it is to solve the energy to ask to develop and use regenerative resource
The important channel of topic, and solar energy is exactly a kind of widely distributed, inexhaustible, cleanliness without any pollution regenerative resource.
Current most widely used solar cell form is thin-film solar cells, and studying widest light absorbent is
Silica-base material, but silica-based solar cell electricity conversion has been approached theoretical limit, and that there are prices is high, energy consumption is big, pollution
The deficiencies of weight.Therefore, researcher thinks deeply is substituted with other materials, and last decade is emerged in large numbers on the basis of silicon solar cell
Go out the novel photovoltaics materials such as multi-element compounds, organic compound, hybrid inorganic-organic perovskite.The multicomponent compound film sun
Can include rare element in battery (cadmium telluride (CdTe), copper indium gallium selenide (CIGS), copper-zinc-tin-sulfur (CZTS) etc.), to cost compared with
Height, and its composition is not easy to control, to be unfavorable for its large-scale business application；Organic compound solar cell prepares letter
It is single, of low cost, light-weight and can be made into flexible device, but its stability is poor, and short life is equally unfavorable for large-scale application；
Hybrid inorganic-organic perovskite solar cell combines the excellent of inorganic solar cell material and organic solar battery material
Point, have it is stronger catch the characteristics such as light ability, excellent charge transport ability and high defect tolerance, but its stability and longevity
Still not ideal enough, also very long apart from the business application distance of life.
Invention content
In order to solve the above technical problems, the present invention provides a kind of shell-and-core structure perovskite nano-wire array solar cell,
With higher electricity conversion.
To achieve the above object, technical solution of the present invention is as follows：
A kind of shell-and-core structure perovskite nano-wire array solar cell, including the top electrode being oppositely arranged and lower electrode,
It is characterized by：The top of the lower electrode is provided with sandwich layer, the sandwich layer include stratiform base portion and array distribution in base portion
The columnar part of upper surface is provided between the sandwich layer and top electrode using shell made of perovskite, which coats simultaneously
It is fitted on sandwich layer, the lower surface of the top electrode is bonded with the upper surface of shell.
Using the above structure, shell is made of perovskite material, and sandwich layer is electrons transport layer, this special shell
Sandwich layer forms this special one-dimentional structure of shell-and-core structure nano-wire array, to have numerous advantages：Easy single crystallization can drop
Low hole-electronics recombination rate；Direct transfer passages are provided for carrier, increase carrier diffusion length and service life；Easily cause light
Strong resonance and generate focusing light effect, solar cell can be broken and imitated in Xiao Keli-Kui Yise present on electricity conversion
The rate limit, to have higher electricity conversion；Nano-wire array has the function of antireflective so that it can absorb more
Incident light, so as to provide more photo-generate electron-holes pair.It is abundant by shell from the light of top electrode incidence under illumination
It absorbs and generates electron-hole pair, electronics then occurs inside shell detaches with hole, and the electronics (hole) after separation passes through core
Layer is migrated to lower electrode, correspondingly, hole (electronics) transports arrival top electrode along shell, electrons and holes are respectively in shell as a result,
Layer and sandwich layer transmission, to reduce Carrier recombination rate, improve efficient carrier concentration, while shortening carrier transport
Path, therefore realize higher electricity conversion.
As preferred：The shell includes the cylindrical portion of superimposed portions and array distribution on superimposed portions top, layered
The lower surface in portion is bonded with the upper surface of base portion, and each cylindrical portion is sleeved in corresponding columnar part, and inner surface with it is corresponding
The outer surface of columnar part is bonded, and upper surface is bonded with the lower surface of top electrode.Using the above structure, the surface with bigger
Product, effectively increases the absorption efficiency of photon.
As preferred：The cylindrical portion is cylindrical.Using the above structure, reliable and stable, it is easy to make.
As preferred：Extremely flexible electrode is at least powered in the top electrode and lower electrode.Using the above structure, shell is each
There may be foozles for the height of the upper surface of a cylindrical portion, and top electrode effectively can overcome this to ask using flexible electrode
Topic, reduces the manufacture difficulty of solar cell.
As preferred：The lower electrode is electro-conductive glass, has better support strength, is conducive to the system of solar cell
It makes.
As preferred：The perovskite is low-dimensional perovskite, can generate stable exciton, stability is good, improves too
The electricity conversion of positive energy battery.
Compared with prior art, the beneficial effects of the invention are as follows：
Using shell-and-core structure perovskite nano-wire array solar cell provided by the invention, structure novel, it is easy to accomplish,
Carrier recombination rate is reduced, efficient carrier concentration is improved, shortens carrier transport path, to greatly improve photoelectric conversion effect
Rate.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of the present invention.
Specific implementation mode
The invention will be further described with attached drawing with reference to embodiments.
As depicted in figs. 1 and 2, a kind of shell-and-core structure perovskite nano-wire array solar cell, including be oppositely arranged
Top electrode 1 and lower electrode 2 are provided with sandwich layer 3 on the top of the lower electrode 2, are arranged between the sandwich layer 3 and top electrode 1
Have using shell 4 made of low-dimensional perovskite, which, which coats, is simultaneously fitted on sandwich layer 3, the lower surface of the top electrode 1 with
The upper surface of shell 4 is bonded.
Under illumination, incident light is incident from top electrode 1, and generation electron-hole pair, subsequent electronics-sky are fully absorbed by shell 4
Cave is detached to electronics occurs inside shell 4 with hole, and the electronics after separation reaches lower electrode 2 by sandwich layer 3, and hole is then along shell
Layer 4, which transports, reaches top electrode 1；Or the hole after separation reaches lower electrode 2 by sandwich layer 3, electronics then transports arrival along shell 4
Top electrode 1.
The columnar part 32 of the base portion 31 of the sandwich layer 3 including stratiform and array distribution in 31 upper surface of base portion, wherein described
The lower surface of base portion 31 is bonded with the upper surface of lower electrode 2, and columnar part 32 is the identical cylindrical of size.The shell
4 include the cylindrical portion 42 of superimposed portions 41 and array distribution on 41 top of superimposed portions, the lower surface in layered portion 41 and base portion
31 upper surface fitting, each cylindrical portion 42 is sleeved in corresponding columnar part 32, and inner surface and corresponding columnar part 32
Outer surface is bonded, and upper surface is bonded with the lower surface of top electrode 1.
Due to 4 each cylindrical portion 42 of shell upper surface height there may be tolerance, and top electrode 1 uses flexible electrode
It can effectively overcome the problems, such as this, reduce the manufacture difficulty of solar cell.Meanwhile to further decrease the system of solar cell
Difficulty is made, lower electrode 2 uses electro-conductive glass, with higher support strength.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make table as multiple types
Show, such transformation is each fallen within protection scope of the present invention.
Claims (6)
1. a kind of shell-and-core structure perovskite nano-wire array solar cell, including the top electrode (1) being oppositely arranged and lower electrode
(2), it is characterised in that：The top of the lower electrode (2) is provided with sandwich layer (3), which includes the base portion (31) of stratiform
Columnar part (32) with array distribution in base portion (31) upper surface is provided with use between the sandwich layer (3) and top electrode (1)
Shell made of perovskite (4), the shell (4) are coated and are fitted on sandwich layer (3), the lower surface of the top electrode (1) and shell
The upper surface fitting of layer (4).
2. shell-and-core structure perovskite nano-wire array solar cell according to claim 1, it is characterised in that：The shell
Layer (4) includes the cylindrical portion (42) of superimposed portions (41) and array distribution on superimposed portions (41) top, layered portion (41)
Lower surface is bonded with the upper surface of base portion (31), and each cylindrical portion (42) is sleeved on corresponding columnar part (32), and interior table
Face is bonded with the outer surface of corresponding columnar part (32), and upper surface is bonded with the lower surface of top electrode (1).
3. shell-and-core structure perovskite nano-wire array solar cell according to claim 1, it is characterised in that：The cylinder
Shape portion (42) is cylindrical.
4. shell-and-core structure perovskite nano-wire array solar cell according to claim 1, it is characterised in that：On described
At least top electrode (1) is flexible electrode in electrode (1) and lower electrode (2).
5. shell-and-core structure perovskite nano-wire array solar cell according to claim 4, it is characterised in that：Under described
Electrode (2) is electro-conductive glass.
6. shell-and-core structure perovskite nano-wire array solar cell according to claim 1, it is characterised in that：The calcium
Titanium ore is low-dimensional perovskite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339725.1A CN108493344A (en) | 2018-04-16 | 2018-04-16 | Shell-and-core structure perovskite nano-wire array solar cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339725.1A CN108493344A (en) | 2018-04-16 | 2018-04-16 | Shell-and-core structure perovskite nano-wire array solar cell |
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| Publication Number | Publication Date |
|---|---|
| CN108493344A true CN108493344A (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810339725.1A Pending CN108493344A (en) | 2018-04-16 | 2018-04-16 | Shell-and-core structure perovskite nano-wire array solar cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261788A (en) * | 2020-01-20 | 2020-06-09 | 重庆科技学院 | Manufacturing method of solar cell and method for preparing shell layer by using sol method |
| CN111416044A (en) * | 2020-01-20 | 2020-07-14 | 重庆科技学院 | Core layer of perovskite nanowire with tiled shell-core structure and solar cell manufacturing method thereof |
| CN112909108A (en) * | 2021-01-15 | 2021-06-04 | 重庆科技学院 | Shell-core structure nanowire array solar cell based on quantum dots |
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| CN111416044A (en) * | 2020-01-20 | 2020-07-14 | 重庆科技学院 | Core layer of perovskite nanowire with tiled shell-core structure and solar cell manufacturing method thereof |
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