Ngo-2009, lapho amaseli e-calcite thin-film eqala ukuvela, ukusebenza kahle kokuguqulwa kwaba ngu-3.8% kuphela, futhi kwanda ngokushesha okukhulu, i-Unit 2018, ukusebenza kahle kwelabhorethri kudlule u-23%. Ifomula eyisisekelo yama-molecule ye-chalcogenide compound yi-ABX3, kanti isikhundla se-A ngokuvamile siyi-ion yensimbi, njenge-Cs+ noma i-Rb+, noma iqembu elisebenzayo le-organic. Njenge-(CH3NH3;), [CH (NH2)2]+; Isikhundla se-B ngokuvamile siyi-divalent cations, njenge-Pb2+ kanye ne-Sn2+ ions; isikhundla se-X ngokuvamile siyi-halogen anions, njenge-Br-, I-, Cl-. Ngokushintsha izingxenye zama-compound, i-bandwidth engavunyelwe yama-compounds e-chalcogenide ingalungiswa phakathi kuka-1.2 no-3.1 eV. Ukuguqulwa kwe-photovoltaic kwamaseli e-chalcogenide okusebenza kahle kakhulu ngobude obufushane bamagagasi, okubekwe phezu kwamaseli anokusebenza okuvelele kokuguqulwa ngobude obude bamagagasi, njengamaseli e-silicon acwebezelayo angafani, angathola ngokombono ukusebenza kokuguqulwa kwe-photovoltaic okungaphezu kuka-30%, kudlule umkhawulo wokusebenza kokuguqulwa kwethiyori kwamaseli e-silicon acwebezelayo angu-29.4%. 2020, leli bhethri elihlanganisiwe selivele lifinyelele ukusebenza kokuguqulwa okungu-29.15% eBerlin Laboratory yaseHeimholtz, eJalimane, kanye ne-chalcogenide-crystalline silicon Iseli elihlanganisiwe libhekwa njengelinye lobuchwepheshe obukhulu bebhethri besizukulwane esilandelayo.
Isendlalelo sefilimu ye-chalcogenide satholakala ngendlela yezinyathelo ezimbili: okokuqala, amafilimu e-Pbl2, kanye ne-CsBr anezimbobo abekwa phezu kwamaseli e-heterojunction anezindawo ezithambile ngokufudumezana, bese embozwa ngesisombululo se-organohalide (FAI, FABr) ngokumboza nge-spin. Isixazululo se-organic halide singena ezimbotsheni zefilimu engaphili efakwe ngomusi bese siphendula futhi sicwebezele kuma-degree Celsius angu-150 ukuze sakhe isendlalelo sefilimu ye-chalcogenide. Ubukhulu befilimu ye-chalcogenide etholakale ngaleyo ndlela babungu-400-500 nm, futhi yaxhunywa ngokulandelana neseli le-heterojunction elingaphansi ukuze kulungiselelwe ukufana kwamanje. Izingqimba zokuthutha ama-electron kwifilimu ye-chalcogenide yi-LiF kanye ne-C60, ezitholwe ngokulandelana ngokuthuthwa komoya oshisayo, kulandelwe ukuthuthwa kongqimba lwe-athomu lwesendlalelo se-buffer, i-Sn02, kanye nokuthuthwa kwe-magnetron kwe-TCO njenge-electrode engaphambili esobala. Ukuthembeka kwaleli seli elihlanganisiwe kungcono kunokweseli elilodwa le-chalcogenide, kodwa ukuzinza kwefilimu ye-chalcogenide ngaphansi kwethonya lemvelo lomhwamuko wamanzi, ukukhanya, nokushisa kusadinga ukuthuthukiswa.
Isikhathi sokuthunyelwe: Okthoba-20-2023