Abaphandi baseDanish babika ukuba ukunyanga iiseli ze-solar ze-non-fullerene-based based acceptor-based organic vitamin C kunika umsebenzi we-antioxidant onciphisa iinkqubo eziphazamisayo ezivela kubushushu, ukukhanya, kunye nokuvezwa kwe-oxygen. Iseli iphumelele ukuguqulwa kwamandla okusebenza kakuhle kwe-9.97%, i-voltage evulekileyo yesekethe ye-0.69 V, i-short-circuit current density ye-21.57 mA / cm2, kunye ne-fiber factor ye-66%.
Iqela labaphandi abavela kwiDyunivesithi yaseMazantsi eDenmark (SDU) lizame ukuthelekisa inkqubela phambili eyenziwayo kuguqulo lwamandla eeseli zelanga zelanga (OPV) ezenziweumamkeli ongekho ngokupheleleyo (NFA)izinto eziphuculweyo uzinzo.
Iqela likhethe i-ascorbic acid, eyaziwa ngokuba yivithamin C, kwaye yayisebenzisa njengomaleko wokudlula phakathi kwe-zinc oxide (ZnO) umaleko wezothutho lwe-electron (ETL) kunye nomaleko wokufota kwiiseli ze-NFA OPV ezenziwe nge-stack yesixhobo esiguqulweyo kunye i-semiconducting polymer (PBDB-T: IT-4F).
Izazinzulu zakha iseli kunye ne-indium tin oxide (ITO) layer, i-ZnO ETL, i-vitamin C layer, i-PBDB-T: i-IT-4F i-absorber, i-molybdenum oxide (i-MoOx) i-carrier-selective layer, kunye nesilivere (Ag). ) ukudibana kwentsimbi.
Iqela lafumanisa ukuba i-ascorbic acid ivelisa umphumo we-photostabilizing, ingxelo yokuba umsebenzi we-antioxidant unciphisa iinkqubo eziphazamisayo ezivela ekuchaselweni kwe-oksijeni, ukukhanya kunye nokushisa. Uvavanyo, olufana nokufunxa okubonakalayo kwe-ultraviolet, i-impedance spectroscopy, i-voltage exhomekeke ekukhanyeni kunye nemilinganiselo yangoku, kwabonisa ukuba ivithamin C inciphisa ukufotowa kwee-molecule ze-NFA kwaye icinezela ukudityaniswa kwentlawulo, kuphawulwe uphando.
Uhlalutyo lwabo lubonise ukuba, emva kwe-96 h ye-photodegradation eqhubekayo phantsi kwe-1 Sun, izixhobo ezifihliweyo eziqulethe i-vitamin C interlayer zigcine i-62% yexabiso lazo lokuqala, kunye nezixhobo zokubhekisela ezigcina kuphela i-36%.
Iziphumo nazo zibonise ukuba ukuzuza uzinzo akuzange kufike kwiindleko zokusebenza kakuhle. Isixhobo sentshatsheli siphumelele ukuguqulwa kwamandla okusebenza kakuhle kwe-9.97%, i-voltage evulekileyo yesekethe ye-0.69 V, i-short-circuit current density ye-21.57 mA / cm2, kunye nokuzaliswa kwe-66%. Izixhobo ezibhekiselele ezingenayo i-vitamin C, zibonise ukusebenza kakuhle kwe-9.85%, i-voltage evulekile ye-circuit ye-0.68V, i-short-circuit current ye-21.02 mA / cm2, kunye ne-fiber factor ye-68%.
Xa ebuzwa malunga norhwebo olunokubakho kunye ne-scalability, uVida Engmann okhokela iqela kwiIziko le-Photovoltaics ePhakamileyo kunye neZixhobo ze-Thin-Film Energy (SDU CAPE), uxelele imagazini ye-pv, "Izixhobo zethu kolu vavanyo zaziyi-2.8 mm2 kunye ne-6.6 mm2, kodwa zinokunyuswa kwilebhu yethu yokuqengqeleka e-SDU CAPE apho sihlala sisenza iimodyuli ze-OPV."
Ugxininise ukuba indlela yokuvelisa inokulinganiswa, echaza ukuba umaleko we-interfacial "yikhompawundi engabizi kakhulu enyibilikayo kwi-solvents eqhelekileyo, ngoko ingasetyenziselwa inkqubo yokugqoka i-roll-to-roll njengezinye iileyile" iseli ye-OPV.
U-Engmann ubona amandla okongeza ngaphaya kwe-OPV kwezinye iitekhnoloji zeseli zesizukulwana sesithathu, ezifana neeseli zelanga ze-perovskite kunye neeseli zelanga ezivezwa idayi (DSSC). "Ezinye iitekhnoloji ezisekelwe kwi-organic / hybrid semiconductor-based, ezifana ne-DSSC kunye neeseli zelanga ze-perovskite, zinemiba yokuzinza efana neeseli zelanga eziphilayo, ngoko ke kukho ithuba elihle lokuba bafake isandla ekusombululeni iingxaki zokuzinza kwezi teknoloji," watsho.
Isisele saboniswa ephepheni “IVithamin C yeeSeli zeSolar eziZinzileyo eziNgena-fullerene,” ipapashwe kwiI-ACS Applied Material Interfaces.Umbhali wokuqala wephepha nguSambathkumar Balasubramanian weSDU CAPE. Iqela libandakanya abaphandi abavela kwi-SDU kunye neYunivesithi yaseRey Juan Carlos.
Ukukhangela phambili iqela linezicwangciso zophando olongezelelweyo kwiindlela zokuzinzisa usebenzisa i-antioxidants yendalo. “Kwixesha elizayo, siza kuqhubeka siphande kweli cala,” utshilo u-Engmann ebhekisa kuphando oluthembisayo kudidi olutsha lwe-antioxidants.
Ixesha lokuposa: Jul-10-2023