CN108878662A - One kind adulterating PEDOT in Perovskite:The preparation method of the perovskite solar battery of PSS - Google Patents
One kind adulterating PEDOT in Perovskite:The preparation method of the perovskite solar battery of PSS Download PDFInfo
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Abstract
The invention discloses one kind, and PEDOT is adulterated in Perovskite:The preparation method of the perovskite solar battery of PSS, detailed process are：1）PEDOT:The preparation of PSS hole transmission layer；2）Perovskite-PEDOT:The preparation of PSS perovskite photoactive layer；3）The preparation of PCBM electron transfer layer；4）The preparation of Bphen hole blocking layer；5）It is prepared by the vapor deposition of Ag electrode.The present invention is with Perovskite-PEDOT:PSS can improve the pattern of perovskite light type layer living as perovskite photoactive layer, simultaneously because PEDOT:The hole transport ability of PSS and the complexing between Perovskite, the volume defect and boundary defect of calcium titanium ore bed can be effectively passivated, to improve the efficiency of transmission of photo-generated carrier, therefore greatly enhance the photoelectric properties of perovskite solar battery.The invention is simple and feasible, and material is easy to get, advantage of lower cost, has no excessively high condition requirement, while the solar cell device photoelectric properties prepared are good and photoelectric conversion rate is higher.
Description
Technical field
The invention belongs to the design of perovskite solar battery and preparation technical fields, and in particular to Yi Zhong
PEDOT is adulterated in Perovskite:The preparation method of the perovskite solar battery of PSS.
Background technique
After gradually recognizing the problems such as traditional coal resources are limited and thermal power generation bring pollutes from people, lied prostrate with photoproduction
The solar battery that special efficacy should be theoretical foundation causes the extensive concern of people.Perovskite solar battery is due to its brilliance
Photoelectric properties, since the advent of the world, by the development of a few years, the performances such as efficiency are constantly refreshed and are broken through.Traditional
Perovskite solar battery reacts raw using iodine methylamine and lead iodide or lead chloride as presoma, by stoichiometric ratio appropriate
At the perovskite structure with cubic structure.Using iodine methylamine lead chloride as the inverted structure perovskite solar structure of presoma
In, since the pattern of perovskite influences, there are certain volume defects, and cause the compound of photo-generated carrier to a certain extent,
The transmission of charge is influenced, therefore influences the photoelectric properties of device.The present invention is with classical hole mobile material PEDOT:PSS is to add
Agent is added to be doped Perovskite calcium titanium ore bed, due to PEDOT:Complexing between PSS and Perovskite improves
Calcium titanium ore bed pattern, is passivated the volume defect of perovskite, to reduce charge recombination, promotes effective transmission of charge, and then improve
With Perovskite-PEDOT:PSS is the photoelectric properties and photoelectric conversion efficiency of the battery device of calcium titanium ore bed.The present invention is not
The synthesis of new material is needed, operating method is simple and easy and effect is preferable, this walks out laboratory for perovskite solar battery, walks
New thinking is provided to life application.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of process, simple and reliable and effect is preferably in Perovskite
Middle doping PEDOT:The preparation method of the perovskite solar battery of PSS, the perovskite solar battery have preferable photoelectricity
Performance and higher photoelectric conversion efficiency.
The present invention adopts the following technical scheme that one kind adulterates PEDOT in Perovskite to solve above-mentioned technical problem:
The preparation method of the perovskite solar battery of PSS, it is characterised in that detailed process is：
Step S100：Prepare PEDOT:PSS hole transmission layer, the specific steps are：
Step S101：Ito glass through over cleaning and hydrophilicity-imparting treatment is placed on sol evenning machine, is uniformly applied on ito glass
Cover PEDOT:PSS aqueous solution simultaneously carries out spin coating and obtains PEDOT:The precursor film of PSS hole transmission layer, spin coating revolving speed be 2500 ~
3500 revs/min, spin-coating time is 30 ~ 40 seconds；
Step S102：The ITO substrate of spin coating precursor film by step S101 processing is placed on warm table, in air environment
In annealed with the constant temperature lower than 140 DEG C and obtain PEDOT in homogeneous thickness in 15 ~ 30 minutes:PSS hole transmission layer；
Step S200：Prepare Perovskite-PEDOT:PSS calcium titanium ore bed, the specific steps are：
Step S201：By PEDOT:PSS aqueous solution and DMF solution, which dissolve each other, is configured to the mixing that percent by volume is 1.0% ~ 2.0%
Solvent；
Step S202：By PbCl2And CH3NH3I is 1 according to molar ratio:3 are uniformly mixed and obtain mixed-powder, and by above-mentioned mixing
Powder be placed in by step S201 prepare in the mixed solvent, be placed on the warm table in glove box, in nitrogen atmosphere with
Temperature heating stirring lower than 70 DEG C dissolves to obtain mixed solution；
Step S203：The obtained mixed solution of step S202 is filtered with the polytetrafluoroethylene filter of 0.45 μm of specification
Obtain the clear Perovskite-PEDOT of yellow:PSS calcium titanium ore bed precursor solution；
Step S204：The obtained growth of step S102 there is into PEDOT:The ITO substrate of PSS hole transmission layer is placed in glove box
Sol evenning machine on, in PEDOT:The Perovskite-PEDOT that uniform coating step S203 is obtained on PSS hole transmission layer:PSS
Calcium titanium ore bed precursor solution simultaneously carries out spin coating and obtains Perovskite-PEDOT:The precursor film of PSS calcium titanium ore bed, spin coating revolving speed are
3000 ~ 5000 revs/min, spin-coating time is 40 ~ 50 seconds；
Step S205：The warm table ITO substrate for having precursor film by the spin coating of step S204 processing being placed in glove box
On, with 10 DEG C/10 minutes heating rates from 30 DEG C of Gradient annealings to 100 ~ 120 DEG C, and continue at temperatures below 120 °C
Annealing obtains the Perovskite-PEDOT of brownish black in 1.5 hours:PSS calcium titanium ore bed；
Step S300：PCBM electron transfer layer is prepared, the specific steps are：
Step S301：15 ~ 25mg dark brown powder PCBM is placed in chlorobenzene in glove box, is placed on warm table, in nitrogen
It is dissolved in compression ring border with the temperature heating stirring lower than 60 DEG C, finally obtains the PCBM electron transfer layer that concentration is 20 ± 5mg/mL
Precursor solution；
Step S302：The obtained growth of step S205 there is into Perovskite-PEDOT:The ITO substrate of PSS calcium titanium ore bed is placed
On sol evenning machine in glove box, in Perovskite-PEDOT:Uniformly coating is prepared by step S301 on PSS calcium titanium ore bed
PCBM electron transfer layer precursor solution, and carry out spin coating and obtain the precursor film of PCBM electron transfer layer, spin coating revolving speed is 2000 ~
4000 revs/min, spin-coating time is 40 ~ 50 seconds；
Step S303：There to be the ITO substrate of precursor film to be placed on the warm table of glove box by the spin coating of step S302 processing,
It anneals 15 ~ 20 minutes in nitrogen environment in 60 ~ 80 DEG C and obtains PCBM electron transfer layer；
Step S400：Bphen hole blocking layer is prepared, the specific steps are：
Step S401：5 ~ 7mg powder Bphen is placed in dehydrated alcohol in air, is then placed within the warm table of glove box
On, heating stirring dissolves to obtain the Bphen hole blocking layer precursor solution that concentration is 0.5 ~ 0.7mg/mL in nitrogen environment；
Step S402：The ITO substrate that the growth that step S302 is obtained has PCBM electron transfer layer is placed on even in glove box
On glue machine, the Bphen hole blocking layer precursor solution that uniformly coating is prepared by step S401 on PCBM electron transfer layer, so
Spin coating is carried out afterwards and obtains Bphen hole blocking layer, and spin coating revolving speed is 4000 ~ 6000 revs/min, and spin-coating time is 40 ~ 50 seconds；
Step S500：Ag electrode is prepared, the specific steps are：
At room temperature, growth step S402 obtained has the ITO substrate of Bphen hole blocking layer to be placed on vacuum coating equipment
In, 4.5 × 10−4The silver electrode film that a layer thickness is 80 ~ 120nm is deposited with thermal evaporation methods under the high vacuum environment of Pa,
Obtaining structure is ITO/PEDOT:PSS/Perovskite-PEDOT:PSS/PCBM/Bphen/Ag's mixes in Perovskite
Miscellaneous PEDOT:The perovskite solar battery of PSS.
The invention has the advantages that：
1, the present invention by solution spin-coating method prepares battery device, in the ITO substrate through over cleaning and hydrophilic treated, prepare with
Perovskite-PEDOT:PSS is the perovskite solar-electricity of the inverted structure of calcium titanium ore bed.By PEDOT:The doping of PSS
Afterwards, the pattern of calcium titanium ore bed is improved, simultaneously because PEDOT:PSS is to the passivation of calcium titanium ore bed volume defect, effectively
Promotion charge transmission, to greatly improve the photoelectric properties and photoelectric conversion efficiency of perovskite solar battery；
2,Perovskite-PEDOT:PSS calcium titanium ore bed, crystalline property is good, does not occur in addition to perovskite characteristic peak
Other miscellaneous peaks（As shown in Figure 1）；
3,Perovskite-PEDOT:PSS calcium titanium ore bed, pattern is good, and crystallite dimension is compared with longer spread densification, and surface is smooth,
Without obvious cavity and pin hole（As shown in Figure 2）；
4, with Perovskite-PEDOT:PSS is the perovskite solar battery of calcium titanium ore bed preparation, has preferable photo electric
Efficiency can be changed with photoelectricity dress（As shown in Figure 3）.
Detailed description of the invention
Fig. 1 is Perovskite-PEDOT:The SEM of PSS calcium titanium ore bed schemes.
Fig. 2 is Perovskite-PEDOT:The XRD diagram of PSS calcium titanium ore bed.
Fig. 3 is Perovskite-PEDOT:PSS perovskite solar batteryJ-VFigure.
Specific embodiment
Above content of the invention is described in further details by the following examples, but this should not be interpreted as to this
The range for inventing above-mentioned theme is only limitted to embodiment below, and all technologies realized based on above content of the present invention belong to this hair
Bright range.
Embodiment 1
Step S100：Prepare PEDOT:PSS hole transmission layer, the specific steps are：
Step S101：Ito glass through over cleaning and hydrophilicity-imparting treatment is placed on sol evenning machine, is uniformly applied on ito glass
Cover PEDOT:PSS aqueous solution simultaneously carries out spin coating and obtains PEDOT:The precursor film of PSS hole transmission layer, spin coating revolving speed be 3500 turns/
Point, spin-coating time is 40 seconds；
Step S102：The ITO substrate of spin coating precursor film by step S101 processing is placed on warm table, in air environment
In persistently anneal in 130 DEG C and obtain PEDOT in homogeneous thickness in 20 minutes:PSS hole transmission layer；
Step S200：Prepare Perovskite-PEDOT:PSS calcium titanium ore bed, the specific steps are：
Step S201：By PEDOT:PSS aqueous solution and DMF solution, which dissolve each other, is configured to the mixed solvent that percent by volume is 1.0%；
Step S202：By PbCl2And CH3NH3I is 1 according to molar ratio:3 are uniformly mixed and obtain mixed-powder, and by above-mentioned mixing
Powder be placed in by step S201 prepare in the mixed solvent, be placed on the warm table in glove box, in nitrogen atmosphere in
70 DEG C of heating stirrings dissolve to obtain mixed solution；
Step S203：The obtained mixed solution of step S202 is filtered with the polytetrafluoroethylene filter of 0.45 μm of specification
Obtain the clear Perovskite-PEDOT of yellow:PSS calcium titanium ore bed precursor solution；
Step S204：The obtained growth of step S102 there is into PEDOT:The ITO substrate of PSS hole transmission layer is placed in glove box
Sol evenning machine on, in PEDOT:The Perovskite-PEDOT that uniform coating step S203 is obtained on PSS hole transmission layer:PSS
Calcium titanium ore bed precursor solution simultaneously carries out spin coating and obtains Perovskite-PEDOT:The precursor film of PSS calcium titanium ore bed, spin coating revolving speed are
3000 revs/min, spin-coating time is 40 seconds；
Step S205：The warm table ITO substrate for having precursor film by the spin coating of step S204 processing being placed in glove box
On, with 10 DEG C/10 minutes heating rates from 30 DEG C of Gradient annealings to 110 DEG C, and persistently anneal 1.5 hours in 110 DEG C of constant temperature
Obtain the Perovskite-PEDOT of brownish black:PSS calcium titanium ore bed；
Step S300：PCBM electron transfer layer is prepared, the specific steps are：
Step S301：15mg dark brown powder PCBM is placed in chlorobenzene in glove box, is placed on warm table, in nitrogen ring
It is dissolved in border in 60 DEG C of heating stirrings, finally obtains the PCBM electron transfer layer precursor solution that concentration is 20mg/mL；
Step S302：The obtained growth of step S205 there is into Perovskite-PEDOT:The ITO substrate of PSS calcium titanium ore bed is placed
On sol evenning machine in glove box, in Perovskite-PEDOT:Uniformly coating is prepared by step S301 on PSS calcium titanium ore bed
PCBM electron transfer layer precursor solution, and carry out spin coating and obtain the precursor film of PCBM electron transfer layer, spin coating revolving speed is 3000
Rev/min, spin-coating time is 40 seconds；
Step S303：There to be the ITO substrate of precursor film to be placed on the warm table of glove box by the spin coating of step S302 processing,
It anneals 20 minutes in nitrogen environment in 60 DEG C and obtains PCBM electron transfer layer；
Step S400：Bphen hole blocking layer is prepared, the specific steps are：
Step S401：5mg powder Bphen is placed in the dehydrated alcohol newly sealed off in air, is then placed within glove box
On warm table, heating stirring dissolves to obtain the Bphen hole blocking layer precursor solution that concentration is 0.5mg/mL in nitrogen environment；
Step S402：The ITO substrate that the growth that step S302 is obtained has PCBM electron transfer layer is placed on even in glove box
On glue machine, the Bphen hole blocking layer precursor solution that uniformly coating is prepared by step S401 on PCBM electron transfer layer, so
Spin coating is carried out afterwards and obtains Bphen hole blocking layer, and spin coating revolving speed is 4000 revs/min, and spin-coating time is 40 seconds；
Step S500：Ag electrode is prepared, the specific steps are：
At room temperature, growth step S402 obtained has the ITO substrate of Bphen hole blocking layer to be placed on vacuum coating equipment
In, 4.5 × 10−4A layer thickness is deposited as the silver electrode film of 80nm with thermal evaporation methods under the high vacuum environment of Pa, obtains
Structure is ITO/PEDOT:PSS/Perovskite-PEDOT:PSS/PCBM/Bphen/Ag's adulterates in Perovskite
PEDOT:The perovskite solar battery of PSS.
Fig. 1 is the Perovskite-PEDOT that the present embodiment is prepared:The XRD data parameters of PSS calcium titanium ore bed, this data
Show that the sample crystallization is good, other miscellaneous peaks in addition to perovskite characteristic peak does not occur.
Embodiment 2
Step S100：Prepare PEDOT:PSS hole transmission layer, the specific steps are：
Step S101：Ito glass through over cleaning and hydrophilicity-imparting treatment is placed on sol evenning machine, is uniformly applied on ito glass
Cover PEDOT:PSS aqueous solution simultaneously carries out spin coating and obtains PEDOT:The precursor film of PSS hole transmission layer, spin coating revolving speed be 3000 turns/
Point, spin-coating time is 30 seconds；
Step S102：The ITO substrate of spin coating precursor film by step S101 processing is placed on warm table, in air environment
In persistently anneal in 130 DEG C and obtain PEDOT in homogeneous thickness in 15 minutes:PSS hole transmission layer；
Step S200：Prepare Perovskite-PEDOT:PSS calcium titanium ore bed, the specific steps are：
Step S201：By PEDOT:PSS aqueous solution and DMF solution, which dissolve each other, is configured to the mixed solvent that percent by volume is 1.5%；
Step S202：By PbCl2And CH3NH3I is 1 according to molar ratio:3 are uniformly mixed and obtain mixed-powder, and by above-mentioned mixing
Powder be placed in by step S201 prepare in the mixed solvent, be placed on the warm table in glove box, in nitrogen atmosphere in
60 DEG C of heating stirrings dissolve to obtain mixed solution；
Step S203：The obtained mixed solution of step S202 is filtered with the polytetrafluoroethylene filter of 0.45 μm of specification
Obtain the clear Perovskite-PEDOT of yellow:PSS calcium titanium ore bed precursor solution；
Step S204：The obtained growth of step S102 there is into PEDOT:The ITO substrate of PSS hole transmission layer is placed in glove box
Sol evenning machine on, in PEDOT:The Perovskite-PEDOT that uniform coating step S203 is obtained on PSS hole transmission layer:PSS
Calcium titanium ore bed precursor solution simultaneously carries out spin coating and obtains Perovskite-PEDOT:The precursor film of PSS calcium titanium ore bed, spin coating revolving speed are
4000 revs/min, spin-coating time is 40 seconds；
Step S205：The warm table ITO substrate for having precursor film by the spin coating of step S204 processing being placed in glove box
On, with 10 DEG C/10 minutes heating rates from 30 DEG C of Gradient annealings to 100 DEG C, and persistently anneal 1.5 hours in 100 DEG C of constant temperature
Obtain the Perovskite-PEDOT of brownish black:PSS calcium titanium ore bed；
Step S300：PCBM electron transfer layer is prepared, the specific steps are：
Step S301：20mg dark brown powder PCBM is placed in chlorobenzene in glove box, is placed on warm table, in nitrogen ring
It is dissolved in border in 60 DEG C of heating stirrings, finally obtains the PCBM electron transfer layer precursor solution that concentration is 20mg/mL；
Step S302：The obtained growth of step S205 there is into Perovskite-PEDOT:The ITO substrate of PSS calcium titanium ore bed is placed
On sol evenning machine in glove box, in Perovskite-PEDOT:Uniformly coating is prepared by step S301 on PSS calcium titanium ore bed
PCBM electron transfer layer precursor solution, and carry out spin coating and obtain the precursor film of PCBM electron transfer layer, spin coating revolving speed is 2000
Rev/min, spin-coating time is 40 seconds；
Step S303：There to be the ITO substrate of precursor film to be placed on the warm table of glove box by the spin coating of step S302 processing,
It anneals 20 minutes in nitrogen environment in 60 DEG C and obtains PCBM electron transfer layer；
Step S400：Bphen hole blocking layer is prepared, the specific steps are：
Step S401：7mg powder Bphen is placed in the dehydrated alcohol newly sealed off in air, is then placed within glove box
On warm table, heating stirring dissolves to obtain the Bphen hole blocking layer precursor solution that concentration is 0.7mg/mL in nitrogen environment；
Step S402：The ITO substrate that the growth that step S302 is obtained has PCBM electron transfer layer is placed on even in glove box
On glue machine, the Bphen hole blocking layer precursor solution that uniformly coating is prepared by step S401 on PCBM electron transfer layer, so
Spin coating is carried out afterwards and obtains Bphen hole blocking layer, and spin coating revolving speed is 4000 revs/min, and spin-coating time is 40 seconds；
Step S500：Ag electrode is prepared, the specific steps are：
At room temperature, growth step S402 obtained has the ITO substrate of Bphen hole blocking layer to be placed on vacuum coating equipment
In, 4.5 × 10−4A layer thickness is deposited as the silver electrode film of 80nm with thermal evaporation methods under the high vacuum environment of Pa, obtains
Structure is ITO/PEDOT:PSS/Perovskite-PEDOT:PSS/PCBM/Bphen/Ag's adulterates in Perovskite
PEDOT:The perovskite solar battery of PSS.
Fig. 2 is the Perovskite-PEDOT that the embodiment is prepared:The film surface of PSS calcium titanium ore bed, as seen from the figure,
The sample crystallite dimension is larger, and arrangement is fine and close, and surface is smooth.
Embodiment 3
Step S100：Prepare PEDOT:PSS hole transmission layer, the specific steps are：
Step S101：Ito glass through over cleaning and hydrophilicity-imparting treatment is placed on sol evenning machine, is uniformly applied on ito glass
Cover PEDOT:PSS aqueous solution simultaneously carries out spin coating and obtains PEDOT:The precursor film of PSS hole transmission layer, spin coating revolving speed be 2500 turns/
Point, spin-coating time is 30 seconds；
Step S102：The ITO substrate of spin coating precursor film by step S101 processing is placed on warm table, in air environment
In persistently anneal in 130 DEG C and obtain PEDOT in homogeneous thickness in 15 minutes:PSS hole transmission layer；
Step S200：Prepare Perovskite-PEDOT:PSS calcium titanium ore bed, the specific steps are：
Step S201：By PEDOT:PSS aqueous solution and DMF solution, which dissolve each other, is configured to the mixed solvent that percent by volume is 1.5%；
Step S202：By PbCl2And CH3NH3I is 1 according to molar ratio:3 are uniformly mixed and obtain mixed-powder, and by above-mentioned mixing
Powder be placed in by step S201 prepare in the mixed solvent, be placed on the warm table in glove box, in nitrogen atmosphere in
60 DEG C of heating stirrings dissolve to obtain mixed solution；
Step S203：The obtained mixed solution of step S202 is filtered with the polytetrafluoroethylene filter of 0.45 μm of specification
Obtain the clear Perovskite-PEDOT of yellow:PSS calcium titanium ore bed precursor solution；
Step S204：The obtained growth of step S102 there is into PEDOT:The ITO substrate of PSS hole transmission layer is placed in glove box
Sol evenning machine on, in PEDOT:The Perovskite-PEDOT that uniform coating step S203 is obtained on PSS hole transmission layer:PSS
Calcium titanium ore bed precursor solution simultaneously carries out spin coating and obtains Perovskite-PEDOT:The precursor film of PSS calcium titanium ore bed, spin coating revolving speed are
5000 revs/min, spin-coating time is 50 seconds；
Step S205：The warm table ITO substrate for having precursor film by the spin coating of step S204 processing being placed in glove box
On, with 10 DEG C/10 minutes heating rates from 30 DEG C of Gradient annealings to 100 DEG C, and persistently anneal 1.5 hours in 100 DEG C of constant temperature
Obtain the Perovskite-PEDOT of brownish black:PSS calcium titanium ore bed；
Step S300：PCBM electron transfer layer is prepared, the specific steps are：
Step S301：20mg dark brown powder PCBM is placed in chlorobenzene in glove box, is placed on warm table, in nitrogen ring
It is dissolved in border in 60 DEG C of heating stirrings, finally obtains the PCBM electron transfer layer precursor solution that concentration is 20mg/mL；
Step S302：The obtained growth of step S205 there is into Perovskite-PEDOT:The ITO substrate of PSS calcium titanium ore bed is placed
On sol evenning machine in glove box, in Perovskite-PEDOT:Uniformly coating is prepared by step S301 on PSS calcium titanium ore bed
PCBM electron transfer layer precursor solution, and carry out spin coating and obtain the precursor film of PCBM electron transfer layer, spin coating revolving speed is 2000
Rev/min, spin-coating time is 40 seconds；
Step S303：There to be the ITO substrate of precursor film to be placed on the warm table of glove box by the spin coating of step S302 processing,
It anneals 20 minutes in nitrogen environment in 60 DEG C and obtains PCBM electron transfer layer；
Step S400：Bphen hole blocking layer is prepared, the specific steps are：
Step S401：7mg powder Bphen is placed in the dehydrated alcohol newly sealed off in air, is then placed within glove box
On warm table, heating stirring dissolves to obtain the Bphen hole blocking layer precursor solution that concentration is 0.7mg/mL in nitrogen environment；
Step S402：The ITO substrate that the growth that step S302 is obtained has PCBM electron transfer layer is placed on even in glove box
On glue machine, the Bphen hole blocking layer precursor solution that uniformly coating is prepared by step S401 on PCBM electron transfer layer, so
Spin coating is carried out afterwards and obtains Bphen hole blocking layer, and spin coating revolving speed is 4000 revs/min, and spin-coating time is 40 seconds；
Step S500：Ag electrode is prepared, the specific steps are：
At room temperature, growth step S402 obtained has the ITO substrate of Bphen hole blocking layer to be placed on vacuum coating equipment
In, 4.5 × 10−4A layer thickness is deposited as the silver electrode film of 120nm with thermal evaporation methods under the high vacuum environment of Pa, obtains
It is ITO/PEDOT to structure:PSS/Perovskite-PEDOT:PSS/PCBM/Bphen/Ag's adulterates in Perovskite
PEDOT:The perovskite solar battery of PSS.
Perovskite-PEDOT prepared by the embodiment:PSS perovskite solar battery is placed on J-V test macro
Middle progress photoelectric properties test, as shown in figure 3, available using the perovskite solar battery that the embodiment is prepared
17.5% incident photon-to-electron conversion efficiency.
Embodiment above describes basic principles and main features of the invention and advantage, the technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, under the range for not departing from the principle of the invention, various changes and improvements may be made to the invention, these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (1)
1. one kind adulterates PEDOT in Perovskite:The preparation method of the perovskite solar battery of PSS, it is characterised in that
Detailed process is：
Step S100：Prepare PEDOT:PSS hole transmission layer, the specific steps are：
Step S101：Ito glass through over cleaning and hydrophilicity-imparting treatment is placed on sol evenning machine, is uniformly applied on ito glass
Cover PEDOT:PSS aqueous solution simultaneously carries out spin coating and obtains PEDOT:The precursor film of PSS hole transmission layer, spin coating revolving speed be 2500 ~
3500 revs/min, spin-coating time is 30 ~ 40 seconds；
Step S102：The ITO substrate of spin coating precursor film by step S101 processing is placed on warm table, in air environment
In annealed with the constant temperature lower than 140 DEG C and obtain PEDOT in homogeneous thickness in 15 ~ 30 minutes:PSS hole transmission layer；
Step S200：Prepare Perovskite-PEDOT:PSS calcium titanium ore bed, the specific steps are：
Step S201：By PEDOT:PSS aqueous solution and DMF solution, which dissolve each other, is configured to the mixing that percent by volume is 1.0% ~ 2.0%
Solvent；
Step S202：By PbCl2And CH3NH3I is 1 according to molar ratio:3 are uniformly mixed and obtain mixed-powder, and by above-mentioned mixing
Powder be placed in by step S201 prepare in the mixed solvent, be placed on the warm table in glove box, in nitrogen atmosphere with
Temperature heating stirring lower than 70 DEG C dissolves to obtain mixed solution；
Step S203：The obtained mixed solution of step S202 is filtered with the polytetrafluoroethylene filter of 0.45 μm of specification
Obtain the clear Perovskite-PEDOT of yellow:PSS calcium titanium ore bed precursor solution；
Step S204：The obtained growth of step S102 there is into PEDOT:The ITO substrate of PSS hole transmission layer is placed in glove box
Sol evenning machine on, in PEDOT:The Perovskite-PEDOT that uniform coating step S203 is obtained on PSS hole transmission layer:PSS
Calcium titanium ore bed precursor solution simultaneously carries out spin coating and obtains Perovskite-PEDOT:The precursor film of PSS calcium titanium ore bed, spin coating revolving speed are
3000 ~ 5000 revs/min, spin-coating time is 40 ~ 50 seconds；
Step S205：The warm table ITO substrate for having precursor film by the spin coating of step S204 processing being placed in glove box
On, with 10 DEG C/10 minutes heating rates from 30 DEG C of Gradient annealings to 100 ~ 120 DEG C, and continue at temperatures below 120 °C
Annealing obtains the Perovskite-PEDOT of brownish black in 1.5 hours:PSS calcium titanium ore bed；
Step S300：PCBM electron transfer layer is prepared, the specific steps are：
Step S301：15 ~ 25mg dark brown powder PCBM is placed in chlorobenzene in glove box, is placed on warm table, in nitrogen
It is dissolved in compression ring border with the temperature heating stirring lower than 60 DEG C, finally obtains the PCBM electron transfer layer that concentration is 20 ± 5mg/mL
Precursor solution；
Step S302：The obtained growth of step S205 there is into Perovskite-PEDOT:The ITO substrate of PSS calcium titanium ore bed is placed
On sol evenning machine in glove box, in Perovskite-PEDOT:Uniformly coating is prepared by step S301 on PSS calcium titanium ore bed
PCBM electron transfer layer precursor solution, and carry out spin coating and obtain the precursor film of PCBM electron transfer layer, spin coating revolving speed is 2000 ~
4000 revs/min, spin-coating time is 40 ~ 50 seconds；
Step S303：There to be the ITO substrate of precursor film to be placed on the warm table of glove box by the spin coating of step S302 processing,
It anneals 15 ~ 20 minutes in nitrogen environment in 60 ~ 80 DEG C and obtains PCBM electron transfer layer；
Step S400：Bphen hole blocking layer is prepared, the specific steps are：
Step S401：5 ~ 7mg powder Bphen is placed in dehydrated alcohol in air, is then placed within the warm table of glove box
On, heating stirring dissolves to obtain the Bphen hole blocking layer precursor solution that concentration is 0.5 ~ 0.7mg/mL in nitrogen environment；
Step S402：The ITO substrate that the growth that step S302 is obtained has PCBM electron transfer layer is placed on even in glove box
On glue machine, the Bphen hole blocking layer precursor solution that uniformly coating is prepared by step S401 on PCBM electron transfer layer, so
Spin coating is carried out afterwards and obtains Bphen hole blocking layer, and spin coating revolving speed is 4000 ~ 6000 revs/min, and spin-coating time is 40 ~ 50 seconds；
Step S500：Ag electrode is prepared, the specific steps are：
At room temperature, growth step S402 obtained has the ITO substrate of Bphen hole blocking layer to be placed on vacuum coating equipment
In, 4.5 × 10−4The silver electrode film that a layer thickness is 80 ~ 120nm is deposited with thermal evaporation methods under the high vacuum environment of Pa,
Obtaining structure is ITO/PEDOT:PSS/Perovskite-PEDOT:PSS/PCBM/Bphen/Ag's mixes in Perovskite
Miscellaneous PEDOT:The perovskite solar battery of PSS.
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