Nyob rau hauv 2009, thaum calcite nyias-zaj duab xis hlwb pib tshwm sim conversion efficiency tsuas yog 3.8%, thiab tau nce sai heev, Chav tsev 2018, lub chaw soj nstuam efficiency tau tshaj 23%. Cov mis mos molecular ntawm chalcogenide compound yog ABX3, thiab A txoj haujlwm feem ntau yog cov hlau ion, xws li Cs + lossis Rb +, lossis pawg ua haujlwm organic. Xws li (CH3NH3;), [CH (NH2)2]+; B txoj hauj lwm feem ntau yog divalent cations, xws li Pb2+ thiab Sn2+ ions; X txoj hauj lwm feem ntau yog halogen anions, xws li Br-, I-, Cl-. Los ntawm kev hloov cov khoom ntawm cov tebchaw, txwv tsis pub bandwidth ntawm chalcogenide compounds yog adjustable ntawm 1.2 thiab 3.1 eV. Kev ua haujlwm siab photovoltaic hloov dua siab tshiab ntawm chalcogenide hlwb ntawm luv-wavelengths, superimposed ntawm cov hlwb nrog zoo hloov dua siab tshiab kev ua tau zoo nyob rau hauv ntev-wavelengths, xws li heterogeneous crystalline silicon hlwb, muaj peev xwm theoretically tau ib tug photovoltaic conversion efficiency ntawm ntau tshaj 30%, tawg los ntawm kev txwv ntawm theoretical conversion efficiency ntawm crystalline silicon 4%. Xyoo 2020, lub roj teeb uas tau teem tseg no twb tau ua tiav qhov kev hloov pauv ntawm 29.15% hauv Berlin Laboratory ntawm Heimholtz, Lub teb chaws Yelemees, thiab chalcogenide-crystalline silicon Stacked cell yog suav tias yog ib qho ntawm cov roj teeb tseem ceeb ntawm cov tiam tom ntej.
Lub chalcogenide zaj duab xis txheej tau pom los ntawm ob txoj kev: thawj zaug, ntxeem tau Pbl2, thiab CsBr films tau tso rau saum npoo ntawm heterojunction hlwb nrog fluffy nto los ntawm co-evaporation, thiab ces them nrog ib tug organohalide tov (FAI, FABr) los ntawm spin-coating. Cov organic halide tov nkag mus rau hauv lub qhov hws ntawm cov vapor-deposited inorganic zaj duab xis thiab tom qab ntawd reacts thiab crystallizes ntawm 150 degrees Celsius los tsim ib tug chalcogenide zaj duab xis txheej. Qhov tuab ntawm chalcogenide zaj duab xis yog li tau txais yog 400-500 nm, thiab nws tau txuas nrog hauv cov koob nrog lub hauv paus heterojunction cell los txhim kho qhov sib txuam tam sim no. Cov txheej txheem thauj electron ntawm cov yeeb yaj kiab chalcogenide yog LiF thiab C60, tau txais los ntawm thermal vapor deposition, tom qab ntawd los ntawm atomic txheej deposition ntawm ib txheej tsis, Sn02, thiab magnetron sputtering ntawm TCO raws li pob tshab pem hauv ntej electrode. Qhov kev ntseeg ntawm lub cell stacked no zoo dua li ntawm chalcogenide ib txheej ntawm tes, tab sis kev ruaj ntseg ntawm chalcogenide zaj duab xis nyob rau hauv ib puag ncig cuam tshuam ntawm dej vapor, lub teeb, thiab cua sov tseem yuav tsum tau txhim kho.
Post lub sij hawm: Oct-20-2023