Undoped organic-small-molecule hole transport material, perovskite solar cell, and preparation method and application of perovskite solar cell
A technology of hole transport materials and solar cells, applied in organic chemistry, circuits, photovoltaic power generation, etc., can solve the problems of affecting the photoelectric conversion efficiency of devices, poor film forming ability, and limiting the open circuit voltage of devices, so as to promote large-scale commercialization Production, avoiding unstable factors, improving the effect of stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0070] The present invention also provides a method for preparing a perovskite solar cell 10, comprising the following steps:
[0071]An electron transport layer 12 , a perovskite light absorbing layer 13 , a hole transport layer 14 and a second electrode 15 are sequentially formed on the first electrode 11 .
[0072] Preparation of the first electrode 11 : cleaning the transparent oxide semiconductor with an inorganic solvent and a first organic solvent respectively, drying, and then performing ultraviolet and ozone treatment to obtain the substrate of the first electrode 11 .
[0073] The above-mentioned inorganic solvent is deionized water, and the first organic solvent is selected from at least one of acetone, ethanol and isopropanol. Specifically, the first organic solvent is ethanol, and the cleaning effect is better.
[0074] Further, in order to achieve a better cleaning effect, the transparent oxide semiconductor may also be cleaned with detergent before cleaning with...
Embodiment 1
[0089] This embodiment provides a non-doped organic small molecule hole transport material as shown in formula II, and the specific preparation process is as follows:
[0090] Step S1: In a nitrogen environment, 0.15 g of 0.276g and 20mg of Pd(PPh 3 ) 4 into a three-necked flask, and then 25 mL of toluene was added to obtain a mixed solution.
[0091] Step S2: heating the above mixed solution to 110°C, stirring for 8 hours, the resulting mixture was poured into water and extracted with chloroform, and the obtained organic layer was washed with anhydrous MgSO 4 Drying gave the crude product. The crude product was purified by a silica gel chromatography column, wherein the eluent of the silica gel chromatography column was chloroform and n-hexane at a volume ratio of 1:1 to obtain a red solid.
[0092] Step S3: Mix the above red solid with 0.5g of and 4 mL of piperidine were added into chloroform to dissolve, and then degassed with nitrogen 5 times to obtain a mixture. ...
Embodiment 2
[0095] This embodiment provides a non-doped organic small molecule hole transport material as shown in formula III, and the specific preparation process is as follows:
[0096] Step S1: In a nitrogen environment, 0.15 g of 0.276g and 20mg of Pd(PPh 3 ) 4 into a three-necked flask, and then 25 mL of toluene was added to obtain a mixed solution.
[0097] Step S2: Heat the above mixed solution to 110°C and stir for 8 hours. The obtained mixture is poured into water and extracted with chloroform, and the obtained organic layer is washed with anhydrous MgSO 4 Drying gave the crude product. The crude product was purified by a silica gel chromatography column, wherein the eluent of the silica gel chromatography column was chloroform and n-hexane at a volume ratio of 1:1 to obtain a red solid.
[0098] Step S3: Add 0.5 g of the above red solid and 4 mL of piperidine were added into chloroform to dissolve, and then degassed with nitrogen 5 times to obtain a mixture.
[0099] ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More