CN105552235B - A kind of method for improving perovskite solar battery efficiency - Google Patents
A kind of method for improving perovskite solar battery efficiency Download PDFInfo
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- CN105552235B CN105552235B CN201510998782.7A CN201510998782A CN105552235B CN 105552235 B CN105552235 B CN 105552235B CN 201510998782 A CN201510998782 A CN 201510998782A CN 105552235 B CN105552235 B CN 105552235B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
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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
Abstract
The present invention relates to a kind of method for improving perovskite solar battery efficiency, it comprises the following steps：(a) imidazolium compounds is added in perovskite precursor solution, dissolving forms mixed solution, and the chemical structural formula of the imidazolium compounds isN is 0~5 integer in formula；The perovskite precursor solution is PbI2Solution；(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, perovskite film is thermally formed；(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery to electrode.Superior in quality perovskite film can so be formed so that battery performance is excellent.
Description
Technical field
The invention belongs to area of solar cell, it is related to a kind of method of improvement solar battery efficiency, and in particular to one
Plant the method for improving perovskite solar battery efficiency.
Background technology
Solar energy, wind energy, biomass energy, tide energy etc. are all cheap, cleaning and environment-friendly regenerative resource.Wherein
Solar energy is as a kind of inexhaustible, nexhaustible clean energy resource, with not limited by regional condition and Land use systems are flexible
Advantage, be most promising replacement new energy in future global energy system.
Utilization to solar energy mainly includes opto-electronic conversion, photothermal deformation and photochemical energy 3 kinds of forms of conversion.Opto-electronic conversion
Realized by solar cell.It is used as a kind of new third generation solar cell, organic and inorganic perovskite solar-electricity
Pond development speed is surprising, and it rapidly increases to 20.1% from energy conversion efficiency between 6 years of 2009 to 2015 from 3.81%.It is based on
Solar cell prepared by this material is referred to as perovskite solar cell, abbreviation PSCs.
PSCs structures are mainly made up of four parts.One is electronics collecting layer, its main function be responsible for transmission electronics with
The effect of electronics is collected, mainly there is inorganic semiconductor TiO2, ZnO etc..Two be organic and inorganic perovskite light absorbing layer, for example
CH3NH3PbI3, CH3NH3PbI2Cl, CH3NH3PbBr3Deng.Three be hole transmission layer.Four be back electrode, mainly Au, Ag etc..Its
In, perovskite light absorbing layer is as the core of perovskite solar cell, and its film form plays decision to battery performance
Property effect.The quality of perovskite film is directly related with light capture rate, the photoelectric properties of final influence battery.System common at present
The method of standby perovskite film has 3 kinds：Vacuum deposition method, liquid phase method, steam assisted deposition.Wherein liquid phase method is because its is cheap
Cost of manufacture and be widely used.But liquid phase method easily is controlled to be influenceed by manual operation, the perovskite film quality of making is good
Green bristlegrass is uneven, causes battery performance not good.
The content of the invention
It is an object of the invention to provide a kind of method for improving perovskite solar battery efficiency, so as to improve solar-electricity
The electricity conversion in pond.
To solve above technical problem, a kind of technical scheme that the present invention takes is：One kind improves perovskite solar-electricity
The method of pond efficiency, it comprises the following steps：
(a) imidazolium compounds is added in perovskite precursor solution, dissolving forms mixed solution, the imidazoles chemical combination
The chemical structural formula of thing isN is 0~5 integer in formula；The perovskite precursor solution is PbI2Solution；
(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, perovskite film is thermally formed；
(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery to electrode.
Optimally, the chemical structural formula of the imidazolium compounds is
Optimally, the PbI2The concentration of solution is 0.5~5mol/L, the imidazolium compounds and the PbI2Mole
Than for 0.1~1: 1.
Optimally, it is described to be heated to be in step (b)：First heated 30~60 minutes at 100~120 DEG C, then 130~150
DEG C heating 15~30 minutes.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The present invention improves calcium titanium
The method of ore deposit solar battery efficiency, by the way that imidazolium compounds is added into perovskite precursor solution, can subsequently heat shape
Into superior in quality perovskite film so that battery performance is excellent.
Embodiment
Embodiment 1
The present embodiment provides a kind of method for improving perovskite solar battery efficiency, and it comprises the following steps：
(a) by 1molIt is the PbI that 1mol/L, volume are 1L to be added to concentration2In solution (solvent is N,
Dinethylformamide, DMF), dissolving forms mixed solution；
(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, first heated 60 minutes at 100 DEG C, then
130 DEG C are heated 30 minutes；
(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery, test result to electrode
As shown in table 1.
Embodiment 2
The present embodiment provides a kind of method for improving perovskite solar battery efficiency, and it comprises the following steps：
(a) by 0.5molIt is the PbI that 5mol/L, volume are 1L to be added to concentration2In solution (solvent is N,
Dinethylformamide, DMF), dissolving forms mixed solution；
(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, first heated 30 minutes at 120 DEG C, then
150 DEG C are heated 15 minutes；
(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery, test result to electrode
As shown in table 1.
Embodiment 3
The present embodiment provides a kind of method for improving perovskite solar battery efficiency, and it comprises the following steps：
(a) by 1molIt is the PbI that 2mol/L, volume are 1L to be added to concentration2(solvent is N, N- in solution
Dimethylformamide, DMF), dissolving forms mixed solution；
(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, first heated 40 minutes at 110 DEG C, then
140 DEG C are heated 20 minutes；
(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery, test result to electrode
As shown in table 1.
The test result of the embodiment 1-3 perovskite solar cells of table 1
Note：Test condition：Room temperature environment, uses xenon lamp simulated solar irradiation, light intensity 100mW/cm2Under the conditions of, measure battery
(effective area 0.16cm2)。
Wherein,Represent when battery has peak power output (Pmax) when, corresponding electric current and voltage
Product and short circuit current flow and open-circuit voltage product ratio.Electricity conversion is calculated using as follows
Formula：
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (4)
1. a kind of method for improving perovskite solar battery efficiency, it is characterised in that it comprises the following steps：
(a) imidazolium compounds is added in perovskite precursor solution, dissolving forms mixed solution, the imidazolium compounds
Chemical structural formula isN is 0~5 integer in formula；The perovskite precursor solution is PbI2Solution；
(b) mixed solution TiO has been spun to2In the conductive substrates of compacted zone, perovskite film is thermally formed；
(c) the spin coating hole transmission layer in the perovskite film, evaporation metal is assembled into battery to electrode.
2. the method according to claim 1 for improving perovskite solar battery efficiency, it is characterised in that：The imidazoles
The chemical structural formula of compound is
3. the method according to claim 1 for improving perovskite solar battery efficiency, it is characterised in that：The PbI2It is molten
The concentration of liquid is 0.5~5mol/L, the imidazolium compounds and the PbI2Mol ratio be 0.1~1: 1.
4. the method according to claim 1 for improving perovskite solar battery efficiency, it is characterised in that in step (b),
It is described to be heated to be：First heat 30~60 minutes, then heated 15~30 minutes at 130~150 DEG C at 100~120 DEG C.
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| CN106410047A (en) * | 2016-12-14 | 2017-02-15 | 天津市职业大学 | Large-area composite light absorption layer of perovskite solar cell and preparation method thereof |
| CN106449994B (en) * | 2016-12-18 | 2018-11-27 | 天津市职业大学 | A kind of large area perovskite solar cell light absorption multilayer film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140422A (en) * | 1994-12-13 | 1997-01-15 | 英国石油化学品有限公司 | Ionic liquids |
| CN101013730A (en) * | 2007-02-01 | 2007-08-08 | 复旦大学 | Dye-sensitized solar battery of nano-crystalline thin film and method for making same |
| CN104919613A (en) * | 2013-01-15 | 2015-09-16 | 巴斯夫欧洲公司 | Triangulene oligomers and polymers and their use as hole conducting material |
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2015
- 2015-12-24 CN CN201510998782.7A patent/CN105552235B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140422A (en) * | 1994-12-13 | 1997-01-15 | 英国石油化学品有限公司 | Ionic liquids |
| CN101013730A (en) * | 2007-02-01 | 2007-08-08 | 复旦大学 | Dye-sensitized solar battery of nano-crystalline thin film and method for making same |
| CN104919613A (en) * | 2013-01-15 | 2015-09-16 | 巴斯夫欧洲公司 | Triangulene oligomers and polymers and their use as hole conducting material |
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