ساخت غشاء rgo /psf وتاثیرغلظت rgo برخواص آبگریزپلیمرpsf واستفاده از خاصیت خود تمیز شوند گی وآبگریزی آن برای بهبودبازده وپایداری سلول های خورشیدی

ﭼﮑﯿﺪه در اﯾﻦ ﭘﮋوﻫﺶ ﻫﺪف ﺳﺎﺧﺖ ﯾﮏ ﻏﺸﺎ ﻧﺎﻧﻮﺳﺎﺧﺘﺎر آبﮔﺮﯾﺰ ﻫﯿﺒﺮﯾﺪی ﺷﺎﻣﻞ ﭘﻠﯽ ﺳﻮﻟﻔﻮن و اﮐﺴﯿﺪ ﮔﺮاﻓﻦ اﺣﯿﺎء ﺷﺪه )psf/rgo( ﺑﺮای ﺑﻬﺒﻮد ﺑﺎزده، ﭘﺎﯾﺪاری و ﺧﻮدﺗﻤﯿﺰﺷﻮﻧﺪﮔﯽ ﺳﻠﻮل ﺧﻮرﺷﯿﺪی اﺳﺖ. اﯾﻦ ﭘﻮﺷﺶ ﺑﺎ ﺧﺎﺻﯿﺖﻫﺎی آبﮔﺮﯾﺰی، ﺧﻮدﺗﻤﯿﺰﺷﻮﻧﺪﮔﯽ و ﮐﺎﻫﺶ اﻧﻌﮑﺎس ﻧﻮری ﮐﻪ دارا اﺳﺖ؛ ﭘﺎﯾﺪاری ﭘﻨﻞﻫﺎی ﺧﻮرﺷﯿﺪی را ﺗﺤﺖ ﺷﺮاﯾﻂ اﺗﻤﺴﻔﺮ ﻫﻮا اﻓﺰاﯾﺶ ﻣﯽدﻫﺪ. در اﯾﻦ ﺗﺤﻘﯿﻖ ﺑﺮای ﺗﻬﯿﻪ ﻏﺸﺎء آبﮔﺮﯾﺰ rgo/psf، از ﻣﯿﺎن ﭘﻠﯿﻤﺮﻫﺎ از ﭘﻠﯽ ﺳﻮﻟﻔﻮن ﺑﻪ دﻟﯿﻞ ﺧﻮاص ﻣﻨﺤﺼﺮ ﺑﻪ ﻓﺮد آن از ﺟﻤﻠﻪ ﺗﻬﯿﻪ آﺳﺎن، ﺷﻔﺎﻓﯿﺖ ﮐﺸﺴﺎن و آبﮔﺮﯾﺰ ﺑﻮدن، اﺳﺘﻔﺎده ﺷﺪه اﺳﺖ. ﻫﻤﭽﻨﯿﻦ از ﺑﯿﻦ ﮔﺮوهﻫﺎی ﮐﺮﺑﻨﯽ، اﮐﺴﺎﯾﺪ ﮔﺮاﻓﻦ ﺑﺎ ﺧﻮاص رﺳﺎﻧﻨﺪﮔﯽ ﺑﺎﻻ اﻧﺘﺨﺎب ﺷﺪه ﮐﻪ ﺑﻪ ﺗﺮﺗﯿﺐ ﺑﺎ روشﻫﺎی ﺗﻐﯿﯿﺮ ﻓﺎز ﺷﯿﻤﯿﺎﯾﯽ و ﻫﺎﻣﺮز ﺳﻨﺘﺰ ﺷﺪهاﻧﺪ. ﺑﺎ اﺳﺘﻔﺎده از ﺣﻼلﻫﺎی ﺷﯿﻤﯿﺎﯾﯽ dmf-nmp ﭘﻮﺷﺶ آبﮔﺮﯾﺰ اﯾﻦ ﭘﺮوژه ﺗﻬﯿﻪ ﺷﺪه اﺳﺖ. ﺑﺮای ﺑﺮرﺳﯽ ﻻﯾﻪ ﺑﻬﯿﻨﻪ rgo/psf در ﺳﺎﺧﺘﺎر، از آﻧﺎﻟﯿﺰﻫﺎی fesem ،ftir ،bet ،sem و contact-angle اﺳﺘﻔﺎده ﺷﺪه اﺳﺖ. ﺑﺎ اﻓﺰودن درﺻﺪﻫﺎی وزﻧﯽ )%1، %2، %4 و 6%( rgo ﺑﻪ ﭘﻠﯽ ﺳﻮﻟﻔﻮن زﻣﯿﻨﻪ، ﺗﺮاﮐﻢ زﺑﺮی و آبﮔﺮﯾﺰی اﯾﻦ ﻏﺸﺎء اﻓﺰاﯾﺶ ﭘﯿﺪا ﻣﯽﮐﻨﺪ. اﯾﻦ ﻏﺸﺎء در ﺳﻠﻮلﻫﺎی ﺧﻮرﺷﯿﺪی ﭘﺮوﺳﮑﺎﯾﺘﯽ cspbi3 ﺑﻪﮐﺎر ﺑﺮده ﺷﺪ و ﺑﺎ اﻧﺪازهﮔﯿﺮی ﭼﮕﺎﻟﯽ ﺟﺮﯾﺎن-وﻟﺘﺎژ )v-i( و زاوﯾﻪ ﺗﻤﺎس آب، ﺑﺎزده اوﻟﯿﻪ ﺳﻠﻮلﻫﺎی ﺧﻮرﺷﯿﺪی ﭘﺮوﺳﮑﺎﯾﺘﯽ ﺑﻌﺪ از20 روز ﺗﺤﺖ ﺷﺮاﯾﻂ ﻣﺤﯿﻂ ﺣﻔﻆ ﺷﺪه اﺳﺖ و ﻣﺤﺼﻮﻻت ﺗﺠﺎری زﯾﺎدی ﺑﺎ اﺳﺘﻔﺎده از اﯾﻦ ﻓﻨﺎوری ﺑﻪ ﻣﺮﺣﻠﻪ ﺗﻮﻟﯿﺪ رﺳﯿﺪه اﻧﺪ.

fabrication of rgo/psf membrane and the effect of rgo concentration on the hydrophobic properties of psf polymer and using its self-cleaning and hydrophobic properties to improve the efficiency and stability of solar cells

in this research, the aim is to create a hybrid hydrophobic nanostructured membrane composed polysulfone and reduced graphene oxide (psf/rgo) to improve the efficiency, stability, and self-cleaning of the solar cell. thiscoating has the properties of water repellency, self-cleaning, and reduced light reflection, which increases the stability of solar panels under atmospheric conditions. in this research, polysulfone has been used for thepreparation of rgo/psf hydrophobic membranes among the polymers due to its unique properties, including easy preparation, elastic transparency, and hydrophobicity. among carbon groups of graphene oxide with highconductivity properties, which was synthesized by chemical phase change branches and hammers respectively. the hydrophobic coating for thisproject was prepared using dmf-nmp chemical solvents. sem, bet, ftir, fesem, and contact-angle analyses have been used to investigate the optimal rgo/psf layer in the structure. by adding weight percentages(1%, 2%, 4%, 6%) of rgo to the base polysulfone, the roughness density and hydrophobicity of this membrane increases. this membrane was used in cspbi3 perovskite solar cells, and by measuring the current-voltagedensity (v-i) and the water contact angle, the initial efficiency of perovskite solar cells was maintained after 20 days under ambient conditions. many commercial products have reached the production stage using thistechnology.