Preparation method of flexible iodide film
An iodide and flexible technology, which is applied in the field of preparation of flexible iodide films, can solve problems such as poor thickness controllability, low uniformity, and elevated substrate temperature, to solve easy peeling and peeling, and to solve the problem of thickness Controllability is not strong, solve the effect of low crystallinity
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Embodiment 1
[0029] Weigh lead iodide (PbI) with a purity of 99.99% 2 ) 50 grams of powder, spread evenly in a clean quartz petri dish, put the petri dish in a vacuum drying oven, use a mechanical pump to evacuate to about 10kPa, heat to 100 degrees Celsius, keep for 10 hours, and continue to pump during the heat preservation process Vacuum, maintain the vacuum degree by adjusting the vacuum valve. Fill the dried powder into a clean steel circular mold with an inner diameter of 40mm, pressurize it to about 13MPa with a hydraulic press, hold the pressure for 15 minutes, release the pressure and take out the circular block evaporation source. The cut size is 5×5cm 2 , a polyimide (PI) film with a thickness of 12 microns was ultrasonically cleaned in absolute ethanol and acetone solution for 30 minutes, taken out and dried with high-purity nitrogen, cleaned with plasma for 30 minutes, and then cleaned with absolute ethanol Soak for 10 minutes, take it out and place it on a clean polished si...
Embodiment 2
[0031] Bismuth iodide (BiI) with a purity of 99.99% was weighed in the glove box 3 ) 50 grams of powder, the powder is filled into a clean steel circular mold with an inner diameter of 40mm, pressurized to about 20MPa with a hydraulic press, and the pressure is released after holding the pressure for 20 minutes to take out the circular block evaporation source. The cut size is 5×5cm 2 A polyethylene (PE) film with a thickness of 20 microns was ultrasonically cleaned in absolute ethanol and acetone solutions for 30 minutes, taken out and dried with high-purity nitrogen, cleaned with plasma for 30 minutes, and then soaked in absolute ethanol for 10 minutes. Minutes, take it out and place it on a clean polished silicon wafer. After the absolute ethanol is volatilized, the PE film is tightly attached to the silicon wafer. Place the circular block bismuth iodide evaporation source in the circular graphite crucible in the vacuum chamber, install the silicon wafer with PE film attac...
Embodiment 3
[0033] Antimony triiodide (SbI) with a purity of 99.9% was weighed 3 ) powder 70 grams, spread evenly in a clean quartz petri dish, put the petri dish in a vacuum drying box, use a mechanical pump to evacuate to about 5kPa, heat to 60 degrees Celsius, keep for 8 hours, and continue to pump during the heat preservation process Vacuum, maintain the vacuum degree by adjusting the vacuum valve. Fill the dried powder into a clean steel circular mold with an inner diameter of 40mm, pressurize it to about 10MPa with a hydraulic press, hold the pressure for 20 minutes, release the pressure and take out the circular block evaporation source. The cut size is 5×5cm 2 1. A polyester (PET) film with a thickness of 40 microns was ultrasonically cleaned in absolute ethanol and acetone solution for 30 minutes, taken out and dried with high-purity nitrogen, cleaned with plasma for 30 minutes, and soaked in absolute ethanol for 10 minutes. Minutes, take it out and place it on a clean polished...
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