Ngo-2009, lapho amaseli efilimu elincanyana e-calcite eqala ukubonakala ukusebenza kahle kokuguqulwa kwakungama-3.8% kuphela, futhi kwanda ngokushesha kakhulu, ku-Unit 2018, ukusebenza kahle kwelabhorethri kudlule ama-23%. Ifomula eyisisekelo yamangqamuzana enhlanganisela ye-chalcogenide yi-ABX3, futhi indawo engu-A ngokuvamile iyiyoni yensimbi, efana ne-Cs+ noma i-Rb+, noma iqembu elisebenzayo lezinto eziphilayo. Okufana nokuthi (CH3NH3;), [CH (NH2)2]+; Isikhundla sika-B kuvame ukuba yi-divalent cations, njenge-Pb2+ ne-Sn2+ ions; Isikhundla sika-X kuvame ukuba yi-halogen anion, njenge-Br-, I-, Cl-. Ngokushintsha izingxenye zezinhlanganisela, umkhawulokudonsa owenqatshelwe we-chalcogenide compounds uyalungiseka phakathi kuka-1.2 no-3.1 eV. Ukuguqulwa kwe-photovoltaic okusebenza kahle kakhulu kwamaseli e-chalcogenide kumaza amaza amafushane, abekwe phezulu kumaseli anokuguqulwa okuvelele kokusebenza ngamaza amade amaza, njengamaseli e-silicon e-crystalline heterogeneous crystalline, angathola ngokombono ukuphumelela kokuguqulwa kwe-photovoltaic okungaphezu kuka-30%, kweqe umkhawulo we-crystal conversion of theory 4 amaseli we-conversion.4%. Ngo-2020, leli bhethri elibekiwe selizuze ukusebenza kahle kokuguqulwa okungama-29.15% e-Berlin Laboratory yase-Heimholtz, eJalimane, kanti i-chalcogenide-crystalline silicon Stacked cell ibhekwa njengobunye bobuchwepheshe obukhulu bebhethri besizukulwane esilandelayo.
Ungqimba lwefilimu ye-chalcogenide lwenzeka ngendlela yezinyathelo ezimbili: okokuqala, amafilimu anezimbotshana i-Pbl2, ne-CsBr afakwa phezu kwamaseli e-heterojunction anezindawo ezithambile ngokuhwamuka okuhambisanayo, bese embozwa ngesisombululo se-organohalide (FAI, FABr) ngokujikijelwa kwe-spin. Isixazululo se-organic halide singena ezimbotsheni zefilimu ye-inorganic efakwe umusi bese sisabela futhi sicwebezele ku-150 degrees Celsius ukuze kwakhe ungqimba lwefilimu ye-chalcogenide. Ugqinsi lwefilimu ye-chalcogenide etholwe kanjalo bekungu-400-500 nm, futhi yaxhunywa ochungechungeni neseli elingaphansi le-heterojunction ukuze kuthuthukiswe ukufana kwamanje. Izendlalelo zokuthutha ama-electron kufilimu ye-chalcogenide yi-LiF ne-C60, etholwe ngokulandelana ngokufakwa komhwamuko oshisayo, kulandelwe ukubekwa kwe-athomu kongqimba lwe-buffer, i-Sn02, kanye ne-magnetron sputtering ye-TCO njenge-electrode esobala yangaphambili. Ukuthembeka kwaleli seli eliyisitakiki kungcono kuneseli le-chalcogenide elendlalelo elilodwa, kodwa ukuzinza kwefilimu ye-chalcogenide ngaphansi kwamathonya emvelo womhwamuko wamanzi, ukukhanya, nokushisa kusadinga ukuthuthukiswa.
Isikhathi sokuthumela: Oct-20-2023