Atomic layer deposition (ALD) ndiukadaulo waukadaulo woyika nthunzi wamankhwala womwe umakulitsa mafilimu opyapyala mosanjikiza polowetsamo mamolekyu awiri kapena kupitilira apo. ALD ili ndi ubwino wowongolera kwambiri komanso wofanana, ndipo imatha kugwiritsidwa ntchito kwambiri pazida za semiconductor, zida za optoelectronic, zida zosungira mphamvu ndi magawo ena. Mfundo zazikuluzikulu za ALD zikuphatikizapo kutsatsa kwapatsogolo, kuchitapo kanthu kwa pamwamba ndi kuchotsedwa kwa mankhwala, ndi zipangizo zamagulu angapo zingathe kupangidwa mwa kubwereza ndondomekozi mozungulira. ALD ili ndi mawonekedwe ndi ubwino wa kulamulira kwakukulu, kufanana, ndi kapangidwe kake kopanda porous, ndipo ingagwiritsidwe ntchito poyika zinthu zosiyanasiyana zapansi ndi zipangizo zosiyanasiyana.
ALD ili ndi zotsatirazi ndi zabwino zake:
1. Kuwongolera kwakukulu:Popeza ALD ndi njira ya kukula kwa wosanjikiza ndi wosanjikiza, makulidwe ndi kapangidwe ka gawo lililonse lazinthu zitha kuyendetsedwa bwino.
2. Kufanana:ALD imatha kuyika zinthu mofanana pagawo lonse lapansi, kupewa kusagwirizana komwe kungachitike muukadaulo wina woyika.
3. Zopanda porous:Popeza ALD imayikidwa m'mayunitsi a ma atomu amodzi kapena mamolekyu amodzi, filimuyo nthawi zambiri imakhala yolimba, yopanda porous.
4. Kugwira ntchito bwino:ALD imatha kuphimba bwino mawonekedwe apamwamba, monga ma nanopore arrays, zida zapamwamba za porosity, ndi zina zambiri.
5. Scalability:ALD ingagwiritsidwe ntchito pazinthu zosiyanasiyana zapansi, kuphatikizapo zitsulo, semiconductors, galasi, etc.
6. Kusinthasintha:Posankha mamolekyu otsogola osiyanasiyana, zida zosiyanasiyana zimatha kuyikidwa munjira ya ALD, monga ma oxide achitsulo, sulfides, nitrides, ndi zina.