CN105070836A - Mesoporous perovskite solar cell and preparation method thereof - Google Patents
Mesoporous perovskite solar cell and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a mesoporous perovskite solar cell and a preparation method thereof. The mesoporous perovskite solar cell comprises a transparent conductive base, a compact layer, a skeleton layer, a perovskite layer, a hole transmission layer and a counter electrode, wherein the compact layer, the skeleton layer, the perovskite layer, the hole transmission layer and the counter electrode are sequentially stacked on the transparent conductive base; and the skeleton layer is a barium stannate film with a perovskite structure and the like, and has p-type conductivity or n-type conductivity or comprises an insulator. With a novel perovskite oxide as the skeleton layer, the mesoporous perovskite solar cell has relatively high charge collection efficiency, and is relatively good in contact with a perovskite layer interface. Compared with a traditional titanium dioxide compact layer, the photoelectric properties such as short-circuit current and filling factors can be effectively improved; leakage current caused by contact of the hollow transmission layer and an electron transmission layer is reduced; reverse recombination of photoelectrons is prevented; and the photoelectric conversion efficiency is improved.
Description
Technical field
The invention belongs to Ca-Ti ore type thin-film solar cells cell art, particularly relate to a kind of mesoporous perovskite solar cell and preparation method thereof.
Background technology
Along with society constantly develops, energy problem has become one of most significant problems of the puzzlement mankind, even can say and arrive the stage of energy crisis.Traditional energy resources, such as coal, oil etc. are not only non-renewable, and its pollution on the environment is also day by day serious simultaneously, find the primary approach that Development of Novel regenerative resource is head it off.Solar energy as the representative of new forms of energy, always as the focus of scientific research field by people's extensive concern.Since monocrystaline silicon solar cell invention in 1954, utilize solar power generation to solve energy problem and given people very large hope.At present, widely used solar cell mainly contains silion cell, cadmium telluride cells and copper indium gallium selenide cell.But cost remains high, the life-span has much room for improvement etc., and shortcoming limits the further commercialization of this series of solar cell and widely uses, and can only be applied in some high-tech areas, as space satellite power supply etc.Therefore, research and develop novel solar cell with low cost and effectively can alleviate energy problem.
Liquid calcium titanium ore solar cell (Kojima, A. is reported from Miyasaka in 2009 etc.; Teshima, K.; Shirai, Y.; Miyasaka, T., OrganometalHalidePerovskitesasVisible-LightSensitizersfo rPhotovoltaicCells.
journaloftheAmericanChemicalSociety 2009, 131(17), 6050-6051.) since perovskite solar cell start to receive extensive concern and develop rapidly.2014, along with the research of perovskite solar cell is reached the decisive stage, increasing scientific research sight was put in this field.Recently, the latest data display that American National Ministry of Energy regenerative resource laboratory (NREL) is issued, the peak efficiency of current perovskite solar cell reaches 20.1%, close to the photoelectric conversion efficiency of current commercialization silica-based solar cell, illustrate the broad prospect of application of perovskite battery.
Traditional mesoporous perovskite solar cell is primarily of conductive substrates, compacted zone, casing play, calcium titanium ore bed, hole transmission layer, form electrode.Perovskite solar cell can be thought and is derived from DSSC (DSC), and therefore traditional perovskite solar cell has followed the structure and material of DSSC mostly, adopts the porous TiO with special chemical and electrology characteristic
2as casing play.Casing play mainly serves the effect of support frame and transferring charge, also has and use insulator Al in research afterwards
2o
3as casing play, this casing play then just serves the effect of support frame, and transferring charge then carries out (Lee, M.M. by perovskite itself; Teuscher, J.; Miyasaka, T.; Murakami, T.N.; Snaith, H.J., EfficientHybridSolarCellsBasedonMeso-SuperstructuredOrga nometalHalidePerovskites.
science 2012, 338(6107), 643-647.).
TiO
2as conventional casing play material, itself still also has some limitation.Such as its electron mobility is on the low side relative to similar inorganic oxide semiconductors such as ZnO, causes electronics at TiO
2the loss of layer inside is larger; Due to TiO
2internal flaw, cause its charge collection efficiency not high with the factor such as the contact defective tightness at perovskite interface, thus electric current is lower.These limitation all limit further developing of perovskite solar cell, therefore find the method overcoming these limitations, and the efficient stable perovskite solar cell that preparation has outstanding casing play is significant.
Summary of the invention
Problem to be solved by this invention is to provide a kind of mesoporous perovskite solar cell and preparation method thereof, this perovskite solar cell adopts new ternary oxide as casing play, there is relatively high charge collection efficiency, and better with calcium titanium ore bed interracial contact.
The present invention adopts following technical scheme to achieve these goals:
A kind of mesoporous perovskite solar cell, is characterized in that: comprise electrically conducting transparent substrate, compacted zone, casing play, calcium titanium ore bed, hole transmission layer and to electrode; Described casing play is the sull with perovskite structure.
The mesoporous perovskite solar cell of described one, is characterized in that: the described sull with perovskite structure is transparence, and have p-type conductivity or n-type conductivity or insulator, form is porous membrane.
The mesoporous perovskite solar cell of described one, is characterized in that: described in there is perovskite structure porous oxide film prepared by nano particle, nano wire, nanometer rods, nanometer sheet, nano flower, micron ball and obtained; Loose structure is hole formula, duct formula, duct type, discrete particles formula; Its preparation method adopts spin coating, blade coating, the one of dripping in painting, spraying, method for printing screen.
The mesoporous perovskite solar cell of described one, is characterized in that:
Described sull refers to BaSnO
3film, PbSnO
3film, BaTiO
3film, ZnTiO
3film, PbGeO
3film, LaCrO
3film
,kTaO
3film, MnTiO
3one in film.
The mesoporous perovskite solar cell of described one, is characterized in that:
Described electrically conducting transparent substrate is FTO or ITO; Described compacted zone adopts TiO
2, SnO
2, any one semi-conducting material in ZnO and PCBM formed; Described perovskite light-absorption layer selects chemical general formula to be ABX
my
(3-m)one or more materials of type crystal structure are formed, wherein A=CH
3nH
3, C
4h
9nH
3, NH
2=CHNH
2; B=Pb, Sn; X, Y=Cl, Br, I; M is arbitrary value in 0 to 3;
Described hole transmission layer is that organic material containing additive or inorganic material are formed, described organic material be selected from Spiro-OMeTAD, P3HT, PTAA, PCPDTBT, PEDOT:PSS, NPB and TPD any one; Described inorganic material is selected from CuI, CuSCN, NiO, V
2o
5and MoO
3in any one; Described additive be selected from 4-tert .-butylpyridine, bis trifluoromethyl sulfonic acid sub-acid amides lithium, cobalt salt FK209 any one or multiple;
Described to electrode be selected from gold electrode, platinum electrode, carbon electrode, silver electrode any one.
The preparation method of described mesoporous perovskite solar cell, is characterized in that:
Step is as follows:
(1) electrically conducting transparent substrate etching, cleaning, dry, high-temperature process;
(2) at electrically conducting transparent substrate surface deposited semiconductor material compacted zone;
(3) at compacted zone surface deposition oxide, casing play is formed;
(4) fill on casing play, deposit perovskite crystal structure material, form perovskite light-absorption layer;
(5) at calcium titanium ore bed surface deposition hole transport layer material, hole transmission layer is formed;
(6) at hole transmission layer surface deposition metal counter electrode.
The preparation method of mesoporous perovskite solar cell provided by the present invention, key step is as follows:
(1) electrically conducting transparent substrate etching, cleaning, dry, high-temperature process.
(2) at electrically conducting transparent substrate surface deposited semiconductor TiO
2compacted zone.
(3) at compacted zone surface deposition ternary oxide semiconductor BaSnO
3, form the mesoporous type casing play of one deck.
(4) fill on casing play, deposit perovskite crystal structure material, form perovskite light-absorption layer.
(5) at calcium titanium ore bed surface deposition hole transport layer material, hole transmission layer is formed.
(6) at hole transmission layer surface deposition metal counter electrode.
Described BaSnO
3the preparation method of casing play, key step is as follows:
(1) by mol ratio be the Ba (NO of 1:1
3)
2with SnCl
45H
2o mixes, and adds oxidant H
2o
2be stirred to transparent clarification, add the citric acid of 0.5 mol ratio.
(2) add ammoniacal liquor and regulate PH to 10, stir after producing white precipitate and spend the night.
(3) respectively by deionized water, washes of absolute alcohol precipitation, centrifugation afterwards obtains white paste precipitation.
(4) freeze drying, obtains white powder.
(5) by white presoma 900 DEG C of heating 2h in air, BaSnO is obtained
3nano particle.
(6) by gained BaSnO
3nano particle and terpinol, ethyl cellulose are mixed and made into slurry.
(7) BaSnO is diluted by a certain percentage with absolute ethyl alcohol
3slurry, is spun on compacted zone surface by gained solution spin coating instrument, then 510 DEG C of process 20min.
Innovative point of the present invention is to employ the casing play of a kind of novel ternary oxide semi-conducting material barium stannate as perovskite solar cell.Compared to traditional TiO
2casing play, BaSnO
3there is the characteristic being much different from binary oxide.
Compared with prior art, beneficial effect of the present invention shows:
(1) the present invention by depositing the BaSnO that one deck has perovskite structure equally on compacted zone
3casing play, makes calcium titanium ore bed (CH
3nH
3pbI
3) more tight with the interface cohesion of casing play in the crystal growing process of deposition, thus effectively can reduce interface resistance and charge carrier Interface composites, improve short-circuit current density and the open circuit voltage of battery;
(2) meanwhile, due to combining closely of calcium titanium ore bed and casing play, make perovskite can fill the hole of casing play more completely, the membrane structure formed is more continuously complete, the leakage current that the contact that can effectively reduce hole transmission layer and electron transfer layer causes, prevents the reverse compound of photoelectron;
(3) compared to traditional casing play material TiO
2, BaSnO
3have higher electromobility and charge collection efficiency, and these characteristics being all the photoelectric properties being a significant benefit to battery, is also optimize TiO
2one of important goal of casing play;
(4) relative to binary oxide, BaSnO
3because its ternary is formed, the characterisitic parameter such as its electromobility, position of energy band size can be regulated by means such as doping, the BaSnO that such as lanthanum La adulterates
3electromobility compares TiO
2high two orders of magnitude.Therefore it has larger optimization potentiality, based on BaSnO
3for the electricity conversion of the perovskite solar cell of casing play and stability are also expected to be further enhanced.
Accompanying drawing explanation
Fig. 1 is mesoporous perovskite solar battery structure schematic diagram.
Fig. 2 is by described BaSnO
3the BaSnO that casing play preparation method obtains
3the transmission electron microscope picture of nano particle.
Fig. 3 is the current density voltage curve figure that embodiment 3 obtains mesoporous perovskite solar cell.
Fig. 4 is the ESEM sectional view that embodiment 3 obtains mesoporous perovskite solar cell.
Embodiment
Embodiment 1:
1) electrically conducting transparent substrate is prepared:
The concentrated hydrochloric acid of FTO electro-conductive glass 1:1 and zinc powder are etched into required electrode pattern, with alkaline detergent aqueous solution ultrasonic cleaning 60min.Use deionized water, absolute ethyl alcohol, acetone to wash successively, then dry up with cold dry gas, high temperature 510 DEG C process 20min.
2) compacted zone is prepared:
The tetraisopropyl titanate aqueous isopropanol of 5-40mM is spun on FTO transparent conducting glass, rotating speed 3000-6000rpm, time 30s.510 DEG C of high-temperature process 20min afterwards, form the TiO of 5-150nm
2compacted zone.
3) perovskite light-absorption layer is prepared:
Prepared by use two-step method, by the PbI of 350-500mg
2be dissolved in 1mLDMF(N, dinethylformamide) in, 70 DEG C of heating 12h are to dissolving.Then this PbI2 solution is spun on BaSnO
3on casing play, rotating speed 3000rpm, time 30s, then 70-100 DEG C of annealing 5-30min, obtain the PbI of one deck yellow
2thin layer.With the CH of 4-20mg/mL
3nH
3i isopropyl alcohol molten infiltration PbI
2thin layer 30s, gets rid of the aqueous isopropanol remained afterwards with spin coating instrument, rotating speed 3000rpm, time 30s, and 70-100 DEG C of annealing 5-30min.
4) hole transmission layer is prepared:
By the Spiro-OMeTAD(2 of 36.2-72.3mg, 2', 7,7'-tetra-[N, N-bis-(4-methoxyphenyl) is amino]-9,9'-spiral shell two fluorenes), 1mL chlorobenzene, 14.4-28.8 μ L4-tert .-butylpyridine, the acetonitrile solution (520mg/mL) of the sub-acid amides lithium of 17.5-35 μ L bis trifluoromethyl sulfonic acid, acetonitrile solution (300mg/mL) mixing of 14.5-29 μ L cobalt salt FK209, ultrasonic.With the hole mobile material mixed solution spin coating one deck hole transmission layer prepared on perovskite light-absorption layer, rotating speed 2000-6000rpm, time 30s.
5) electrode is prepared:
The sample of good for spin coating hole transmission layer is put into the template being carved with electrode pattern, uses the method for vacuum evaporation to deposit the thick gold of one deck 50-150nm to electrode.
6) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.08V, short-circuit current density J
sC0.98mA/cm
2, fill factor, curve factor FF0.54, efficiency eta 0.58%.
Embodiment 2:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 3:1 dilution business TiO
2slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 2000-6000rpm, time 30s.510 DEG C of high-temperature process 20min afterwards, form the TiO that 200-600nm is thick
2casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.05V, short-circuit current density J
sC15.18mA/cm
2, fill factor, curve factor FF0.66, efficiency eta 10.54%.
Embodiment 3:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 3:1 dilution BaSnO
3slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 3000rpm, time 30s.510 DEG C of high-temperature process 20min afterwards, form the BaSnO that 200nm is thick
3casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.03V, short-circuit current density J
sC17.96mA/cm
2, fill factor, curve factor FF0.68, efficiency eta 12.56%.
Embodiment 4:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 2:1 dilution BaSnO
3slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 2000-6000rpm, time 30s.510 DEG C of high-temperature process 20min, obtain BaSnO afterwards
3casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC0.87V, short-circuit current density J
sC13.47mA/cm
2, fill factor, curve factor FF0.60, efficiency eta 7.02%.
Embodiment 5:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 4:1 dilution BaSnO
3slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 2000-6000rpm, time 30s.510 DEG C of high-temperature process 20min, obtain BaSnO afterwards
3casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC0.81V, short-circuit current density J
sC10.06mA/cm
2, fill factor, curve factor FF0.54, efficiency eta 4.36%.
Embodiment 6:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 2:1-4:1 dilution BaSnO
3slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 4000rpm, time 30s.510 DEG C of high-temperature process 20min, obtain BaSnO afterwards
3casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.04V, short-circuit current density J
sC14.35mA/cm
2, fill factor, curve factor FF0.63, efficiency eta 9.45%.
Embodiment 7:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared:
With absolute ethyl alcohol with the mass ratio of 2:1-4:1 dilution BaSnO
3slurry, the slurry stirred afterwards after 12h to dilution mixes completely.By the slurry for rotary coating of mixing on compacted zone, rotating speed 2000rpm, time 30s.510 DEG C of high-temperature process 20min, obtain BaSnO afterwards
3casing play.
4) perovskite light-absorption layer is prepared.With embodiment 1.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.01V, short-circuit current density J
sC17.12mA/cm
2, fill factor, curve factor FF0.65, efficiency eta 11.18%.
Embodiment 8:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared.With embodiment 3.
4) perovskite light-absorption layer is prepared:
Prepared by use two-step method, by the PbI of 350-500mg
2be dissolved in 1mLDMF(N, dinethylformamide) in, 70 DEG C of heating 12h are to dissolving.Then by this PbI
2solution is spun on BaSnO
3on casing play, rotating speed 4000rpm, time 30s, then 70-100 DEG C of annealing 5-30min, obtain the PbI of one deck yellow
2thin layer.With the CH of 4-20mg/mL
3nH
3i isopropyl alcohol molten infiltration PbI
2thin layer 30s, gets rid of the aqueous isopropanol remained afterwards with spin coating instrument, rotating speed 4000rpm, time 30s, and 70-100 DEG C of annealing 5-30min.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.02V, short-circuit current density J
sC16.19mA/cm
2, fill factor, curve factor FF0.64, efficiency eta 10.59%.
Embodiment 9:
1) electrically conducting transparent substrate is prepared.With embodiment 1.
2) compacted zone is prepared.With embodiment 1.
3) casing play is prepared.With embodiment 3.
4) perovskite light-absorption layer is prepared:
Prepared by use two-step method, by the PbI of 350-500mg
2be dissolved in 1mLDMF(N, dinethylformamide) in, 70 DEG C of heating 12h are to dissolving.Then this PbI2 solution is spun on BaSnO
3on casing play, rotating speed 2000rpm, time 30s, then 70-100 DEG C of annealing 5-30min, obtain the PbI2 thin layer of one deck yellow.With the CH of 4-20mg/mL
3nH
3i isopropyl alcohol molten infiltration PbI
2thin layer 30s, gets rid of the aqueous isopropanol remained afterwards with spin coating instrument, rotating speed 2000rpm, time 30s, and 70-100 DEG C of annealing 5-30min.
5) hole transmission layer is prepared.With embodiment 1.
6) electrode is prepared.With embodiment 1.
7) test:
Test condition is spectral distribution AM1.5G, intensity of illumination 1000W/m
2standard sources, the effective area of battery is 0.09cm
2.After preferred parameter, the photoelectric conversion efficiency parameter of acquisition is respectively, open circuit voltage V
oC1.02V, short-circuit current density J
sC17.00mA/cm
2, fill factor, curve factor FF0.61, efficiency eta 10.61%.
Claims (6)
1. a mesoporous perovskite solar cell, is characterized in that: comprise electrically conducting transparent substrate, compacted zone, casing play, calcium titanium ore bed, hole transmission layer and to electrode; Described casing play is the sull with perovskite structure.
2. the mesoporous perovskite solar cell of one according to claim 1, is characterized in that: the described sull with perovskite structure is transparence, and have p-type conductivity or n-type conductivity or insulator, form is porous membrane.
3. the mesoporous perovskite solar cell of one according to claim 2, is characterized in that: described in there is perovskite structure porous oxide film prepared by nano particle, nano wire, nanometer rods, nanometer sheet, nano flower, micron ball and obtained; Loose structure is hole formula, duct formula, duct type, discrete particles formula; Its preparation method adopts spin coating, blade coating, the one of dripping in painting, spraying, method for printing screen.
4. the mesoporous perovskite solar cell of one according to claim 1, is characterized in that:
Described sull refers to BaSnO
3film, PbSnO
3film, BaTiO
3film, ZnTiO
3film, PbGeO
3film, LaCrO
3film
,kTaO
3film, MnTiO
3one in film.
5. the mesoporous perovskite solar cell of one according to claim 1, is characterized in that:
Described electrically conducting transparent substrate is FTO or ITO; Described compacted zone adopts TiO
2, SnO
2, any one semi-conducting material in ZnO and PCBM formed; Described perovskite light-absorption layer selects chemical general formula to be ABX
my
(3-m)one or more materials of type crystal structure are formed, wherein A=CH
3nH
3, C
4h
9nH
3, NH
2=CHNH
2; B=Pb, Sn; X, Y=Cl, Br, I; M is arbitrary value in 0 to 3;
Described hole transmission layer is that organic material containing additive or inorganic material are formed, described organic material be selected from Spiro-OMeTAD, P3HT, PTAA, PCPDTBT, PEDOT:PSS, NPB and TPD any one; Described inorganic material is selected from CuI, CuSCN, NiO, V
2o
5and MoO
3in any one; Described additive be selected from 4-tert .-butylpyridine, bis trifluoromethyl sulfonic acid sub-acid amides lithium, cobalt salt FK209 any one or multiple;
Described to electrode be selected from gold electrode, platinum electrode, carbon electrode, silver electrode any one.
6. a preparation method for mesoporous perovskite solar cell as claimed in claim 1, is characterized in that:
Step is as follows:
(1) electrically conducting transparent substrate etching, cleaning, dry, high-temperature process;
(2) at electrically conducting transparent substrate surface deposited semiconductor material compacted zone;
(3) at compacted zone surface deposition oxide, casing play is formed;
(4) fill on casing play, deposit perovskite crystal structure material, form perovskite light-absorption layer;
(5) at calcium titanium ore bed surface deposition hole transport layer material, hole transmission layer is formed;
(6) at hole transmission layer surface deposition metal counter electrode.
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