Ua haujlwm ua haujlwm thiab cov ntawv thov ntawm atomic quab yuam microscopes
Atomic quab yuam tsom yog qhov scanning sojntsuam kev tsom tsom ua raws cov qauv ntawm kev ntsuas tsom iav. Qhov tshwm sim ntawm atomic quab yuam microstrebtedly ua si tsav lub luag haujlwm hauv kev txhim kho Nanotechnology. SCANNING PRARE MENSCOPY, sawv cev los ntawm atomic yuam microscopy, yog ib qho kev sojntsuam me me uas siv cov qauv kev kuaj pom. Atomic quab yuam cov ntawv tsom iav xov tooj hluav taws xob tuaj yeem muab cov ntaub ntawv hauv lub xeev ntawm ntau hom kev kuaj. Piv nrog cov tsom iav tso pa, qhov kom zoo dua ntawm cov qauv kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm cov qauv kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm cov qauv kev ua kom zoo nkauj), kom tau txais lwm yam kev ua kom zoo), thiab tuaj yeem siv rau lwm yam kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm cov qauv kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm cov qauv kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm cov qauv kev ua kom zoo nkauj), thiab tuaj yeem siv rau lwm yam kev kho mob hauv cov duab hauv huab cua zoo nkauj ntawm cov qauv saum npoo. Thiab nws tuaj yeem ua cov kev sib ntxhib, tuab, theem dav dav, kev tshawb xyuas me me lossis qhov ntsuas thiab cov duab kos.
Atomic quab yuam microscopy tuaj yeem kuaj pom ntau cov qauv, muab cov ntaub ntawv rau kev tshawb fawb nyob rau hauv thiab kev tswj hwm kev tsim khoom, uas tsis tuaj yeem raug muab cov tshuaj pleev thaiv cov nplaim hluav taws xob metres thiab electron microscopes.
1, cov ntsiab cai yooj yim
Atomic quab yuam tsom tsom iav siv kev sib cuam tshuam (atomic quab yuam) nruab nrab ntawm ib qho qauv thiab qhov taub ntawm kev sojntsuam zoo los ntsuas lub ntsej muag saum npoo morphology.
Qhov kev soj ntsuam cov lus qhia yog ntawm cov khoom siv me me, thiab cov kev sib cuam tshuam tsim thaum cov kev sojntsuam cov qauv sib xws hauv Cantilever deflection. Qhov kev ncua deb ntawm cov piv txwv saum npoo thiab cov kev sojntsuam yog tsawg dua 3 -} 4nm, thiab lub zog ntes ntawm lawv yog tsawg dua 10-8n. Lub teeb los ntawm laser diode yog tsom rau sab nraum qab ntawm cantilever. Thaum cantilever khoov nyob rau hauv kev ua ntawm lub zog, lub ntsej muag xav txog yog deflected, thiab txoj haujlwm rhiab photoodetector yog siv los deflect lub kaum sab xis. Tom qab ntawd, cov ntaub ntawv sau tau los ntawm lub khoos phis tawm kom tau txais cov duab peb-seem ntawm cov qauv saum npoo.
Ib qho kev sojntsuam Cantilever tiav tau muab tso rau saum npoo ntawm cov qauv tswj hwm los ntawm lub piezoelectric scanner thiab scanned hauv peb cov lus qhia nrog ib kauj ruam dav ntawm 0.1 nm lossis tsawg dua hauv kab rov tav raug. Feem ntau, thaum luam tawm cov qauv saum npoo hauv kev nthuav dav (XYxis axis), lub z} Axis tswj hwm los ntawm Cantilever tseem tsau thiab hloov pauv. Lub z - axis values uas muab cov lus teb rau hauv lub khoos phis tawm rau lub khoos phis tawm, ua rau muaj duab soj ntsuam (3D duab) ntawm cov qauv duab.
