stm 掃描穿隧顯微術
DESCRIPTION
STM 掃描穿隧顯微術. 報告者 : 曾吉隆 王鎮億 吳俊毅 謝聖尉 黃琛壹. 源起. 光學顯微鏡於 1830 年代後期 被發展出來增進人類微觀視野, 使人類 “ 看 ” 到了致病的細菌、微生物和微米級的微小物體, 傳統的光學顯微鏡所能提供的最佳解析度,大約等於其使用光源的波長 (~1 m) , 這樣的解析度已不符目前的需求。 - PowerPoint PPT PresentationTRANSCRIPT
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STM:
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1830(~1m)
19261940(SEM)20(1=10-10m,2-3
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1980 19811986
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STM ()constant current mode
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()constant height mode
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()current imaging tunneling spectroscopy, CITS
1: constant current modeconstant height mode
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STM 1. 2. xyz 3. 4. STM 5.
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(1)scanner:1 (2)tip:0.5mmWKOHNaOH(3)sample stage(4)stepper:10001kHz(5)vibration isolation: (6)pre-amplifier:1nA(7)electronics and controller:z (8)computer
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STM Nanosurf easyScan (STM) .
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STM-210000
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STM-3
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STM-4
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STM-5
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STM(STM):1.2.3.
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1/2
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2/2
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1/2STM111-7x7
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2/2
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1/2
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2/2
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(SPM)
(SPM)
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(STM)(AFM)(SCM)(SSRM)(EFM)
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SEMTEMAFM
XEDSESCAAESSIMS
XXRDTEM
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SPM(SEM)
SEM SPM . . 300nm 1 nm 0.1-1.0 nm () Sample Sample
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SPM1982
STM1980 20 STM(surface dynamics)STM
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Thanks for your attention !