Cov yam ntxwv ntawm Scanning Probe Microscopes
Scanning probe microscopy yog qhov thib peb microscope rau kev soj ntsuam cov qauv ntawm cov teeb meem ntawm atomic scale tom qab teb ion microscopy thiab high-resolution kis electron microscopy. Siv Scanning Tunneling Microscope (STM) ua piv txwv, nws qhov kev daws teeb meem sab nraud yog 0.1 ~ 0.2nm, thiab nws qhov kev daws teeb meem ntsug qhov tob yog 0.01nm. Qhov kev daws teeb meem no tuaj yeem pom meej ib qho atoms lossis molecules faib rau saum npoo ntawm cov qauv. Nyob rau tib lub sijhawm, lub tshuab ntsuas ntsuas ntsuas lub tshuab ntsuas kuj tseem tuaj yeem tshawb xyuas kev soj ntsuam hauv huab cua, lwm yam roj av lossis cov dej hauv ib puag ncig.
Scanning probe microscopes muaj cov yam ntxwv ntawm atomic daws teeb meem, atomic thauj, thiab nano-microprocessing. Txawm li cas los xij, vim muaj cov qauv kev ua haujlwm sib txawv ntawm ntau lub tshuab kuaj kab mob hauv qhov nthuav dav, cov ntaub ntawv ntawm qhov chaw ntawm cov qauv cuam tshuam los ntawm cov txiaj ntsig tau los ntawm lawv yog qhov sib txawv heev. Scanning tunneling microscopy ntsuas cov ntaub ntawv xa tawm ntawm cov chaw nres tsheb hluav taws xob nyob rau saum npoo ntawm cov qauv, uas muaj atomic-theem kev daws teeb meem tab sis tseem tsis tuaj yeem tau txais cov qauv tseeb ntawm cov qauv. Lub atomic microscope pom cov ntaub ntawv sib cuam tshuam ntawm cov atoms, yog li cov ntaub ntawv kev npaj ntawm atomic faib ntawm cov qauv saum npoo tuaj yeem tau txais, uas yog, tus qauv tiag tiag ntawm cov qauv. Tab sis ntawm qhov tod tes, lub atomic force microscope tsis tuaj yeem ntsuas cov ntaub ntawv hluav taws xob hauv lub xeev uas tuaj yeem muab piv nrog txoj kev xav, yog li ob leeg muaj lawv tus kheej qhov zoo thiab qhov tsis zoo.
