Abacwaningi baseDanish babika ukuthi ukwelapha amangqamuzana elanga elanga angewona ama-fullerene asekelwe ku-amukeli-fulllerene nge-vitamin C kunikeza umsebenzi we-antioxidant odambisa izinqubo ezilimazayo ezibangelwa ukushisa, ukukhanya, kanye nokuchayeka komoya-mpilo. Iseli lithole ukusebenza kahle kokuguqulwa kwamandla okungu-9.97 %, i-voltage yesekethe evulekile engu-0.69 V, ukuminyana kwamanje kwesiyingi esifushane okungu-21.57 mA/cm2, kanye nesici sokugcwalisa esingu-66%.
Ithimba labacwaningi abavela eNyuvesi yase-Southern Denmark (SDU) lifune ukufanisa inqubekelaphambili eyenziwayo ekuguquleni amandla ngokusebenza kahle kwamaseli elanga elanga (OPV) enziwei-non-fullerene acceptor (NFA)izinto ezinokuthuthukiswa kokuzinza.
Ithimba likhethe i-ascorbic acid, evame ukwaziwa ngokuthi uvithamini C, futhi layisebenzisa njengesendlalelo sokudlulisa phakathi kwe-zinc oxide (ZnO) electron transport layer (ETL) kanye nongqimba oluthwebulayo lwamaseli e-NFA OPV akhiwe ngesitaki sesendlalelo sedivayisi ehlanekezelwe i-semiconducting polymer (PBDB-T:IT-4F).
Ososayensi bakhe iseli ngongqimba lwe-indium tin oxide (ITO), i-ZnO ETL, ungqimba lukavithamini C, i-PBDB-T:IT-4F absorber, ungqimba olukhethayo lwe-molybdenum oxide (MoOx), kanye nesiliva (Ag). ) ukuxhumana kwensimbi.
Iqembu lithole ukuthi i-ascorbic acid ikhiqiza umphumela we-photostabilizing, ibika ukuthi umsebenzi we-antioxidant unciphisa izinqubo ezilimazayo ezivela ekuchayekeni komoya-mpilo, ukukhanya nokushisa. Ukuhlolwa, okufana nokumuncwa okubonakalayo kwe-ultraviolet, i-impedance spectroscopy, i-voltage encike ekukhanyeni nezilinganiso zamanje, kuphinde kwembula ukuthi uvithamini C wehlisa ukukhishwa kwezithombe kwama-molecule e-NFA futhi acindezele ukuphinda ahlanganiswe, kuphawulwe ucwaningo.
Ukuhlaziya kwabo kubonise ukuthi, ngemva kwamahora angu-96 wokuwohloka kwesithombe okuqhubekayo ngaphansi kwe-1 Sun, amadivayisi ahlanganisiwe aqukethe i-interlayer kavithamini C agcine u-62% yenani lawo langempela, nezinsiza eziyisethenjwa ezigcina kuphela u-36%.
Imiphumela iphinde yabonisa ukuthi izinzuzo zokuzinza azizange zize ngezindleko zokusebenza kahle. Idivayisi engumpetha ithole ukusebenza kahle kokuguqulwa kwamandla okungu-9.97 %, i-voltage yesekethe evulekile engu-0.69 V, ukuminyana kwamanje kwesiyingi esifushane okungu-21.57 mA/cm2, kanye nesici sokugcwalisa esingu-66%. Amadivayisi ayisethenjwa angenawo uvithamini C, abonise ukusebenza kahle okungu-9.85 %, ivolthi yesekethe evulekile engu-0.68V, i-current-circuit current engu-21.02 mA/cm2, kanye nesici sokugcwalisa esingu-68%.
Lapho ebuzwa mayelana namandla okudayiswa kanye nokwanda, u-Vida Engmann ohola iqembu ku-Isikhungo se-Advanced Photovoltaics kanye Namadivayisi Amandla Efilimu Amancane (SDU CAPE), itshele iphephabhuku i-pv, “Izisetshenziswa zethu kulokhu kuhlolwa bezingu-2.8 mm2 no-6.6 mm2, kodwa zingakhuliswa elebhu yethu yokugoqa-to-roll e-SDU CAPE lapho sivame ukwakha khona namamojula e-OPV.”
Ugcizelele ukuthi indlela yokukhiqiza ingancishiswa, eveza ukuthi ungqimba oluhlangene nobuso “luyinhlanganisela engabizi encibilika kuzincibilikisi ezijwayelekile, ngakho-ke lungasetshenziswa enqubweni yokwembathisa njenge-roll-to-roll njengezinye izendlalelo” i-OPV cell.
U-Engmann ubona amandla okungezwa ngale kwe-OPV kobunye ubuchwepheshe bamaseli esizukulwane sesithathu, njengamaseli elanga e-perovskite namaseli elanga azwela udayi (DSSC). "Obunye ubuchwepheshe obusekelwe ku-organic / hybrid semiconductor-based, njenge-DSSC kanye namaseli elanga e-perovskite, anezinkinga ezifanayo zokuzinza njengamangqamuzana e-organic solar, ngakho-ke kunethuba elihle lokuthi bangakwazi ukufaka isandla ekuxazululeni izinkinga zokuzinza kulobu buchwepheshe," esho.
Isitokisi sivezwe ephepheni “I-Vitamin C Yamaseli Elanga Ase-Photo-Stable Non-fullerene-Acceptor-based Organic Solar,” eshicilelwe kuI-ACS Applied Material Interfaces.Umbhali wokuqala wephepha nguSambathkumar Balasubramanian weSDU CAPE. Ithimba lalihlanganisa abacwaningi be-SDU kanye ne-Rey Juan Carlos University.
Uma sibheka phambili iqembu linezinhlelo zocwaningo olwengeziwe mayelana nezindlela zokuzinzisa kusetshenziswa ama-antioxidants angokwemvelo. "Esikhathini esizayo, sizoqhubeka nokuphenya ngale ndlela," kusho u-Engmann ebhekise ocwaningweni oluthembisayo ngekilasi elisha lama-antioxidants.
Isikhathi sokuthumela: Jul-10-2023