CN105529404A - Organic solar cell with two-dimensional nano-bowl array light trapping structure and preparation method of organic solar cell - Google Patents
Organic solar cell with two-dimensional nano-bowl array light trapping structure and preparation method of organic solar cell Download PDFInfo
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- CN105529404A CN105529404A CN201510955864.3A CN201510955864A CN105529404A CN 105529404 A CN105529404 A CN 105529404A CN 201510955864 A CN201510955864 A CN 201510955864A CN 105529404 A CN105529404 A CN 105529404A
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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
- H10K30/15—Sensitised wide-bandgap semiconductor devices, e.g. dye-sensitised TiO2
- H10K30/151—Sensitised wide-bandgap semiconductor devices, e.g. dye-sensitised TiO2 the wide bandgap semiconductor comprising titanium oxide, e.g. TiO2
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/87—Light-trapping means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/18—Deposition of organic active material using non-liquid printing techniques, e.g. thermal transfer printing from a donor sheet
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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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Abstract
The invention belongs to the technical field of a polymer solar cell, in particular relates to a two-dimensional nano-bowl array light trapping structured organic solar cell based on a nanometer hot stamping technique and a preparation method of the organic solar cell. The method comprises the following steps of preparing a TiO2 two-dimensional nano-bowl array template by a PS pellet template method and a sol-gel method; and directly stamping two-dimensional nano-bowl arrays which are uniformly distributed on an active layer by a nanometer stamping machine by using the two-dimensional nano-bowl arrays as a light trapping structure template. By the method, the PS pellet template method is creatively combined with the sol-gel method to rapidly prepare the stamping template, time is shortened, and cost is also saved; and meanwhile, with a two-dimensional nanometer periodic structure prepared by using the nanometer stamping technique, light absorption can be effectively increased, and the utilization rate of solar light is improved. Therefore, the stamping template preparation method is created, the efficiency of the organic solar cell is simultaneously and effectively improved, and a great meaningful reference is provided for future nanometer stamping and the organic solar cell.
Description
Technical field
The invention belongs to organic solar batteries technical field, be specifically related to organic solar batteries of a kind of two-dimensional nano bowl array light trapping structure based on nano hot stamping technology and preparation method thereof.
Background technology
The ordered micro-cellular structure of two and three dimensions photovoltaic, photocatalysis, optical detection, transducer and super-hydrophobic etc. in all there is very large using value, the light trapping structure of the orderly micropore of two and three dimensions is also widely used in organic solar batteries, and when preparing two dimension or three-dimensional ordered micro-cellular structure, often will use different templates material, mould material relatively more conventional mostly at present is silicon dioxide or silicon template.But because earth silicon material is not easy to etching, and the fragility of material too increases the difficulty of image transfer.Its masterplate complicated process of preparation and be difficult to the needs meeting large-scale production, this significantly limit the application of light trapping structure in organic solar batteries.Impression formboard based on silicon dioxide and silicon materials in use will through cutting, photoetching, and the set-up procedures such as burn into removes photoresist, cleaning, the preparatory period is longer, and process is loaded down with trivial details.In order to address these problems, we need prepare light trapping structure masterplate fast by novel technique and method and be applied to organic solar batteries.
Summary of the invention
The object of this invention is to provide a kind of transoid organic solar batteries based on nano hot stamping technology and preparation method thereof.The method utilizes PS bead to prepare two-dimensional nano bowl array masterplate, and it utilizes sol-gal process to prepare TiO in this masterplate
2two-dimensional nano bowl array is as light trapping structure template, on active layer, equally distributed two-dimensional nano bowl array is directly impressed out by nano marking press, thus make operation more simple and convenient, and two-dimensional nano bowl array can enhance device for the absorption of light, improve the performance of device.
The two-dimentional bowl array light trapping structure organic solar batteries preparation based on nano hot stamping technology in the present invention mainly comprises two parts: 1, PS bead template and sol-gal process prepare TiO
2two-dimensional nano bowl array is as light trapping structure masterplate: 2, prepared by light trapping structure transoid organic solar batteries.
Organic solar batteries prepared by the present invention, from bottom to up, ITO Conducting Glass, TiO successively
2electron transfer layer, PCDTBT:PCBM active layer, MoO
3hole transmission layer, Ag anode form, and namely structure is glass/ITO/TiO
2/ PCDTBT:PCBM/MoO
3/ Ag, is characterized in that: with MoO
3the PCDTBT:PCBM active layer surface that hole transmission layer contacts is the two-dimensional nano bowl array light trapping structure of high-sequential, and the diameter of nano bowl is 350 ~ 450nm, is highly 170 ~ 230nm; TiO
2the thickness of electron transfer layer is 30 ~ 50nm, the thickness of PCDTBT:PCBM active layer is 200 ~ 300nm, MoO
3the thickness of hole transmission layer is 3 ~ 5nm, the thickness of Ag anode is 80 ~ 120nm.
Two-dimensional nano bowl array light trapping structure masterplate adopts PS bead template and sol-gal process preparation, adopt nanometer embossing by Graphic transitions to active layer, PS bead template synthesis light trapping structure masterplate technique is simple, and by special nano marking press directly at the obtained equally distributed two-dimensional nano bowl array light trapping structure in active layer surface.When solar light irradiation time, due to the existence of interface light trapping structure, the coupling of device for light can be improved greatly, thus enhance device is for the absorption of sunlight.Photogenerated current can be improved greatly like this, thus improve the performance of device.
The preparation method of the two-dimentional bowl array light trapping structure organic solar batteries based on nano hot stamping technology of the present invention, its step is as follows:
One, TiO
2the preparation of two-dimensional nano bowl array masterplate
1) TiO
2the preparation of colloidal sol
The C of 5 ~ 20mL is added in the absolute ethyl alcohol of 30 ~ 60mL
16h
36o
4ti, stirs 50 ~ 90 minutes; Add 5 ~ 20mL glacial acetic acid and 10 ~ 30mL absolute ethyl alcohol, stir 20 ~ 40 minutes; Add 5 ~ 20mL acetylacetone,2,4-pentanedione and 10 ~ 30mL absolute ethyl alcohol, stir 20 ~ 40 minutes; Add 5 ~ 20mL deionized water and 10 ~ 30mL absolute ethyl alcohol, stir 15 ~ 30h; Leave standstill 2 ~ 4 days, obtain TiO
2colloidal sol;
2) process of substrate
Glass substrate is used successively acetone, ethanol, deionized water ultrasonic cleaning 10 ~ 30 minutes, nitrogen dries up;
3) preparation of PS bead template
Diameter is the monodisperse layer of 300 ~ 500nm polystyrene PS bead is formed by the self assembly way in water/Air Interface.First, water and ethanol (volume ratio of water and ethanol is 1:1) the single dispersing liquid of the PS bead of mass fraction 5wt% ~ 10wt% is prepared; Secondly, in culture dish, add deionized water, and slowly add water and the ethanol single dispersing liquid of PS bead to deionized water surface, PS bead scatters at the water surface, continues to add dispersion liquid until PS bead is paved with the whole water surface; Then, to the C of water surface instillation 2wt% ~ 5wt%
12h
25naO
4the surface tension of the S aqueous solution adjustment water surface, makes PS bead arrange closely, and then the regulating and controlling PS bead size of space; Subsequently, the glass substrate after clean to be inserted at a slant in water and slowly to mention, make arrangement closely PS bead monodisperse layer transfer in glass substrate; Finally, the glass substrate being loaded with PS bead monodisperse layer is removed solvent under 90 DEG C ~ 150 DEG C conditions dry 15 ~ 30 minutes in Muffle furnace, thus obtains close-packed arrays, the orderly little ball array of two-dimentional PS at glass substrate surface;
4) TiO
2the preparation of two-dimensional nano bowl array
First, by step 3) glass substrate being coated with the little ball array of PS that obtains vertically slowly is immersed in step 1) TiO that obtains
2in sol solution 3 ~ 5 minutes, make TiO
2colloidal sol fills up the gap of PS bead template; Then, will from TiO
2the glass substrate of taking out in sol solution is annealed 1.5 ~ 2.5 hours under 350 ~ 500 DEG C of conditions in Muffle furnace, obtains the TiO of high-sequential after naturally cooling to room temperature on a glass substrate
2two-dimensional nano bowl array; Nano bowl array structure diameter 350 ~ 450nm, highly about 170 ~ 230nm;
Two, organic solar batteries preparation.
1) ITO electro-conductive glass is put into beaker, use acetone, absolute ethyl alcohol, deionized water ultrasonic cleaning 20 ~ 30 minutes respectively, dry up with nitrogen after cleaning;
2) by TiO
2colloidal sol is spin-coated on ITO surface, and spin speed is 3000 ~ 5000rpm; Then will with TiO
2the ITO electro-conductive glass Muffle furnace of colloidal sol is annealed 2 ~ 3h under 350 ~ 500 DEG C of conditions; Naturally, after the room temperature that cools, TiO can be obtained on ITO
2film, the thickness of film is 30 ~ 50nm;
3) under room temperature condition, donor material PCDTBT and acceptor material PCBM (mass ratio 1:4) is dissolved in organic solvent dichloro-benzenes (Beijing lark prestige company), be configured to the solution of 5 ~ 10mg/mL, then under the mixing speed of 100 ~ 400rpm, stir 24 ~ 48h, namely can be configured to the mixed solution of PCDTBT:PCBM;
4) at TiO
2spin coating PCDTBT:PCBM mixed solution on film, rotating speed is 1000 ~ 2500rpm; Then, sample is put into the glove box being full of argon gas, with 70 ~ 100 DEG C of annealing 30 ~ 50 minutes in thermal station, thus at TiO
2obtained PCDTBT:PCBM active layer on film, thickness is 200 ~ 300nm;
5) spin coating there is the sample of active layer to be placed in nano hot stamping machine, adopt the TiO prepared
2two-dimensional nano bowl array is as masterplate, then setting pressed temperature is 50 ~ 70 DEG C, pressurize temperature 60 ~ 80 DEG C, 10 ~ 20 minutes dwell times, pressure release temperature 30 ~ 60 DEG C, thus the light trapping structure of two-dimensional nano bowl array is obtained on the surface of PCDTBT:PCBM active layer;
6) be 1 × 10 at pressure again
-4~ 1 × 10
-5under Pa condition, evaporation MoO on the active layer with two-dimensional nano bowl array light trapping structure
3(Chemical Reagent Co., Ltd., Sinopharm Group) hole transmission layer, thickness is 3 ~ 5nm, and the speed of growth is
7) last is 1 × 10 at pressure
-5~ 1 × 10
-3at MoO under Pa condition
3evaporation Ag (Chemical Reagent Co., Ltd., Sinopharm Group) electrode on hole transmission layer, thickness is 80 ~ 120nm, and the speed of growth is
and then prepare two-dimensional nano bowl array light trapping structure organic solar batteries of the present invention.
Accompanying drawing explanation
Fig. 1: impression formboard of the present invention prepares schematic diagram;
Fig. 2: the structural representation of organic solar batteries of the present invention;
Fig. 3: the contrast of transoid organic solar batteries prepared by the present invention and traditional transoid organic solar batteries photocurrent curve.
As shown in Figure 1, step 1 is growth PS bead, and step 2 is the regulating and controlling PS bead size of space, and step 3 is TiO
2formation, step 4 are for forming two-dimensional nanostructure after annealing.Each several part name is called: PS bead 11, TiO
2sol layer 12, glass substrate 13.
As shown in Figure 2, the structural representation of organic solar batteries of the present invention, 1 is ITO Conducting Glass, and 2 is TiO
2electron transfer layer, 3 is active layer, and 4 is MoO
3hole transmission layer, 5 is Ag electrode.
As shown in Figure 3, at 100mw/cm
2xenon light shining under recorded V-I characteristic curve, a is comparative device, and b is improved device.Fig. 3 result illustrates the contrast of transoid organic solar batteries prepared by the present invention and traditional transoid organic solar batteries photocurrent curve, and its battery short circuit electric current, fill factor, curve factor, energy conversion efficiency significantly improves.
Embodiment
Embodiment 1
One, TiO
2the preparation of two-dimensional nano bowl array masterplate.
1) TiO
2the preparation steps of colloidal sol
The C of 10mL is added in the absolute ethyl alcohol of 40mL
16h
36o
4ti stirs 60 minutes; Add 10mL glacial acetic acid and 20mL absolute ethyl alcohol, stir 30 minutes; Add 10mL acetylacetone,2,4-pentanedione and 20mL absolute ethyl alcohol, stir 30 minutes; Add 10mL deionized water and 20mL absolute ethyl alcohol, stir 24h; Leave standstill 3 days, finally form TiO
2colloidal sol.
2) process of substrate
Glass substrate uses acetone, ethanol, deionized water ultrasonic cleaning 20 minutes successively, and nitrogen dries up.
3) preparation of PS bead template
Diameter is the monodisperse layer of 420nm polystyrene PS bead is formed by the self assembly way in water/Air Interface.First, the monodispersed water/ethanol of PS bead (volume ratio of water and ethanol the is 1:1) mixed solution that mass fraction is 5w% is prepared; Secondly, in culture dish, load deionized water, and slowly inject the monodisperse liquor of PS bead to deionized water surface with microsyringe, the little club of PS scatters at the water surface, continues injection until bead is paved with the whole water surface; Then, to the C of water surface instillation 2wt%
12h
25naO
4the surface tension of the S aqueous solution adjustment water surface, control PS bead arranges; Subsequently, glass substrate is inserted at a slant in water and also slowly mention, make PS bead transfer in glass substrate; Finally, the glass substrate being loaded with PS bead monodisperse layer is removed solvent under 100 DEG C of conditions dry 25 minutes in Muffle furnace, thus obtains close-packed arrays, the orderly little ball array of two-dimentional PS at glass substrate surface.
4) TiO
2the preparation of two-dimensional nano bowl array
First, the glass substrate film normal being coated with the little ball array of PS is slowly immersed in TiO
2in sol solution, 5 minutes time, after substrate all immerses, slowly mentions it, makes TiO
2colloidal sol fills up the gap of PS bead template; Then, will from TiO
2the glass substrate film taken out in sol solution is annealed 2 hours under 450 DEG C of conditions in Muffle furnace, obtains the TiO of high-sequential after naturally cooling to room temperature
2two-dimensional nano bowl array; Nano bowl array structure diameter 420nm, highly about 210nm.
Two, organic solar batteries preparation.
1) ITO electro-conductive glass is put into beaker, use acetone, absolute ethyl alcohol, deionized water ultrasonic cleaning 20 minutes respectively, dry up with nitrogen after cleaning;
2) by obtained TiO
2colloidal sol is spin-coated on ITO surface, and spin speed is 3000rpm; Then will with TiO
2iTO electro-conductive glass Muffle furnace roasting 2h under 450 DEG C of conditions of colloidal sol; Naturally, after the room temperature that cools, TiO can be obtained on ITO
2film, the thickness of film is 40nm;
3) under room temperature condition, donor material PCDTBT and acceptor material PCBM (mass ratio 1:4) is dissolved in organic solvent dichloro-benzenes (Beijing lark prestige company), be configured to the solution of 7mg/mL, then under the mixing speed of 300rpm, stir 48h, namely can be configured to the mixed solution of PCDTBT:PCBM;
4) at TiO
2spin coating PCDTBT:PCBM mixed solution on film, rotating speed is 2000rpm; Then, sample is put into the glove box being full of argon gas, with 70 DEG C of annealing 30 minutes in thermal station, thus at TiO
2obtained active layer on film, thickness is 200nm;
5) spin coating there is the sample of active layer to be placed in nano hot stamping machine, adopt the TiO prepared
2two-dimensional nano bowl array is as masterplate, and then setting pressed temperature is 50 DEG C, pressurize temperature 70 C, 20 minutes dwell times, pressure release temperature 30 DEG C, thus obtains two-dimensional nano bowl array on active layer;
6) being taken out by sample, is 1 × 10 at pressure
-5under Pa, evaporation MoO on active layer
3(Chemical Reagent Co., Ltd., Sinopharm Group) hole transmission layer, thickness is 4nm, and the speed of growth is
7) last is 1 × 10 at pressure
-5evaporation Ag (Chemical Reagent Co., Ltd., Sinopharm Group) electrode under Pa, thickness is 100nm, and the speed of growth is
and then prepare two-dimensional nano bowl array light trapping structure organic solar batteries of the present invention.
Claims (5)
1. there is an organic solar batteries for two-dimensional nano bowl array light trapping structure, from bottom to up, successively by ITO Conducting Glass, TiO
2electron transfer layer, PCDTBT:PCBM active layer, MoO
3hole transmission layer and Ag anode composition, is characterized in that: with MoO
3the PCDTBT:PCBM active layer surface that hole transmission layer contacts is the two-dimensional nano bowl array light trapping structure of high-sequential, and the diameter of nano bowl is 350 ~ 450nm, is highly 170 ~ 230nm.
2. a kind of organic solar batteries with two-dimensional nano bowl array light trapping structure as claimed in claim 1, is characterized in that: TiO
2the thickness of electron transfer layer is 30 ~ 50nm, the thickness of PCDTBT:PCBM active layer is 200 ~ 300nm, MoO
3the thickness of hole transmission layer is 3 ~ 5nm, the thickness of Ag anode is 80 ~ 120nm.
3. a kind of preparation method with the organic solar batteries of two-dimensional nano bowl array light trapping structure according to claim 1, its step is as follows:
1) ITO electro-conductive glass is put into beaker, use acetone, absolute ethyl alcohol, deionized water ultrasonic cleaning 20 ~ 30 minutes respectively, dry up with nitrogen after cleaning;
2) by TiO
2colloidal sol is spin-coated on ITO conductive glass surface, and spin speed is 3000 ~ 5000rpm; Then will with TiO
2the ITO electro-conductive glass Muffle furnace of colloidal sol is annealed 2 ~ 3h under 350 ~ 500 DEG C of conditions; Naturally, after the room temperature that cools, TiO can be obtained on ITO
2film;
3) under room temperature condition, by donor material PCDTBT and acceptor material PCBM in mass ratio 1:4 be dissolved in organic solvent dichloro-benzenes, be configured to the solution of 5 ~ 10mg/mL, then under the mixing speed of 100 ~ 400rpm, stir 24 ~ 48h, namely can be configured to the mixed solution of PCDTBT:PCBM;
4) at TiO
2spin coating PCDTBT:PCBM mixed solution on film, rotating speed is 1000 ~ 2500rpm; Then, sample is put into the glove box being full of argon gas, with 70 ~ 100 DEG C of annealing 30 ~ 50 minutes in thermal station, thus at TiO
2obtained PCDTBT:PCBM active layer on film;
5) sample of active layer spin coating is had to be placed in nano hot stamping machine, with TiO
2two-dimensional nano bowl array is masterplate, then setting pressed temperature is 50 ~ 70 DEG C, pressurize temperature 60 ~ 80 DEG C, 10 ~ 20 minutes dwell times, pressure release temperature 30 ~ 60 DEG C, thus the light trapping structure of two-dimensional nano bowl array is obtained on the surface of PCDTBT:PCBM active layer;
6) be 1 × 10 at pressure again
-4~ 1 × 10
-5under Pa condition, evaporation MoO on the active layer with two-dimensional nano bowl array light trapping structure
3hole transmission layer, thickness is 3 ~ 5nm, and the speed of growth is
7) last is 1 × 10 at pressure
-5~ 1 × 10
-3at MoO under Pa condition
3evaporation Ag electrode on hole transmission layer, thickness is 80 ~ 120nm, and the speed of growth is
and then prepare there is two-dimensional nano bowl array light trapping structure organic solar batteries.
4. a kind of preparation method with the organic solar batteries of two-dimensional nano bowl array light trapping structure as claimed in claim 3, is characterized in that: TiO
2the preparation process of two-dimensional nano bowl array is as follows,
1) preparation of PS bead template
First, the diameter preparing mass fraction 5wt% ~ 10wt% is water and the ethanol single dispersing liquid of 300 ~ 500nm polystyrene PS bead; Secondly, in culture dish, add deionized water, and slowly add water and the ethanol single dispersing liquid of PS bead to deionized water surface, PS bead scatters at the water surface, continues to add dispersion liquid until PS bead is paved with the whole water surface; Then, to the C of water surface instillation 2wt% ~ 5wt%
12h
25naO
4the surface tension of the S aqueous solution adjustment water surface, makes PS bead arrange closely, and then the regulating and controlling PS bead size of space; Subsequently, the glass substrate after clean to be inserted at a slant in water and slowly to mention, make arrangement closely PS bead monodisperse layer transfer in glass substrate; Finally, the glass substrate being loaded with PS bead monodisperse layer is removed solvent under 90 DEG C ~ 150 DEG C conditions dry 15 ~ 30 minutes in Muffle furnace, thus obtains close-packed arrays, the orderly little ball array of two-dimentional PS at glass substrate surface;
2) TiO
2the preparation of two-dimensional nano bowl array
First, by step 1) glass substrate being coated with the little ball array of PS that obtains vertically slowly is immersed in TiO
2in sol solution 3 ~ 5 minutes, make TiO
2colloidal sol fills up the gap of PS bead template; Then, will from TiO
2the glass substrate of taking out in sol solution is annealed 1.5 ~ 2.5 hours under 350 ~ 500 DEG C of conditions in Muffle furnace, obtains the TiO of high-sequential after naturally cooling to room temperature on a glass substrate
2two-dimensional nano bowl array.
5. a kind of preparation method with the organic solar batteries of two-dimensional nano bowl array light trapping structure as described in claim 3 or 4, is characterized in that: TiO
2the preparation of colloidal sol is the C adding 5 ~ 20mL in the absolute ethyl alcohol of 30 ~ 60mL
16h
36o
4ti, stirs 50 ~ 90 minutes; Add 5 ~ 20mL glacial acetic acid and 10 ~ 30mL absolute ethyl alcohol, stir 20 ~ 40 minutes; Add 5 ~ 20mL acetylacetone,2,4-pentanedione and 10 ~ 30mL absolute ethyl alcohol, stir 20 ~ 40 minutes; Add 5 ~ 20mL deionized water and 10 ~ 30mL absolute ethyl alcohol, stir 15 ~ 30h; Leave standstill 2 ~ 4 days, obtain TiO
2colloidal sol.
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| CN108063187B (en) * | 2017-12-18 | 2021-01-26 | 苏州大学 | Aluminum nanoparticle array, preparation method and application thereof |
| CN108063187A (en) * | 2017-12-18 | 2018-05-22 | 苏州大学 | A kind of aluminum nanoparticles array, preparation method and applications |
| CN110212096A (en) * | 2019-06-21 | 2019-09-06 | 福州大学 | Organic solar batteries and preparation method thereof based on the molybdenum trioxide hole transmission layer with light trapping structure |
| CN110212096B (en) * | 2019-06-21 | 2021-05-18 | 福州大学 | Organic solar cell based on molybdenum trioxide hole transport layer with light trapping structure and preparation method thereof |
| CN111017867A (en) * | 2019-11-21 | 2020-04-17 | 厦门大学 | Preparation method and application of network structure silicon-based lattice |
| CN111272612A (en) * | 2020-03-03 | 2020-06-12 | 西南石油大学 | Primary screening method of demulsifier |
| CN111272612B (en) * | 2020-03-03 | 2022-01-28 | 西南石油大学 | Primary screening method of demulsifier |
| CN112831758A (en) * | 2021-02-06 | 2021-05-25 | 郝云霞 | Aluminum or aluminum alloy antibacterial material |
| CN112853279A (en) * | 2021-02-06 | 2021-05-28 | 郝云霞 | Preparation method of long-acting bactericidal aluminum or aluminum alloy material |
| CN113161153A (en) * | 2021-03-25 | 2021-07-23 | 中国人民解放军国防科技大学 | Preparation method of visible light multi-band resonant photo-anode |
| CN113161153B (en) * | 2021-03-25 | 2022-03-22 | 中国人民解放军国防科技大学 | Preparation method of visible light multi-band resonant photo-anode |
| CN114717542A (en) * | 2022-04-02 | 2022-07-08 | 湖南理东科技有限公司 | Bowl-shaped titanium alloy surface modification method for photocatalysis and photo-thermal dual-mechanism antibiosis |
| CN114717542B (en) * | 2022-04-02 | 2024-05-03 | 理东新材料科技(山东)有限公司 | Bowl-shaped titanium alloy surface modification method with photocatalysis and photo-thermal dual mechanism antibacterial function |
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