Exploring Nano Space: Atomic Force Microscopy (AFM ) 原子力顯微術

“ Exploring Nano Space:Atomic Force Microscopy (AFM) 原子力顯微術中央研究院物理研究所表面與奈米科學實驗室胡恩德 2014/01/21 中央研究院

Outline OUTLINE • What is nano scale? • Nano scale in your body • Nano scale in nature • Plenty of room at the bottom? • Atomic force microscopy (AFM) 中央研究院 Exploring Nano Space presentation /2

What is nano scale INTRODUCTION 中央研究院 Exploring Nano Space presentation /3

Nano scale in your body INTRODUCTION • Human hair : 10 nm per second • Single DNA : 2.5 nm in diameter • Human fingernail : 1 nm per second http://mrsec.wisc.edu/Edetc/SlideShow/slides/funfacts/nail.html 中央研究院 Exploring Nano Space presentation /4

Nano scale in nature INTRODUCTION 中央研究院 Exploring Nano Space presentation /5

Nano scale in nature 20,000 X MOTH EYE NANO STRUCTURE 4,4 µm Ø 170 nm 中央研究院 Exploring Nano Space presentation /6

Nano scale in nature MOTH EYE NANO “ “ Why nano scale on themoth eye? 中央研究院 Exploring Nano Space presentation /7

Nano scale in nature MOTH EYE NANO • Anti reflection layer 中央研究院 Exploring Nano Space presentation /8

Plenty of room at the bottom? RICHARD P. FEYNMAN Richard P. Feynman 1959 “ “ What would happen if we could arrange the atoms one by one the way we want them? 中央研究院 Exploring Nano Space presentation /9

Plenty of room at the bottom? CUBE SUGAR • 1cm3 cube sugar : 1024atoms • A book : 109 bit • 1 Million books/year • A cube sugar : 1,000,000,000 years 中央研究院 Exploring Nano Space presentation /10

Atomic force microscopy (AFM) EXPLORING THE MICRO WORLD BY AN OPTICAL MICROSCOPE… • Seeing is believing? 中央研究院 Exploring Nano Space presentation /11

Atomic force microscopy (AFM) DIFFRACTION LIMIT OF LIGHT We cannot “see” the nano world... 中央研究院 Exploring Nano Space presentation /12

Atomic force microscopy (AFM) BEYOND THE RESOLUTION LIMIT OF LIGHT We can “feel” the nano world... Atomic Taiwan  Scanning tunneling microscope (STM) The Nobel Prize in Physics, 1986 - Gerd Binnig and Heinrich Rohrer 中央研究院 Exploring Nano Space presentation /13

Atomic force microscopy (AFM) TOUCH THE NANO WORLD We can also “touch” the nano world... 中央研究院 Exploring Nano Space presentation /14

Atomic force microscopy (AFM) EXPLORING THE MICRO WORLD Exploring the “nano world” by a very sharp tip... 中央研究院 Exploring Nano Space presentation /15

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“ The highest mountain on Earth 中央研究院 Exploring Nano Space presentation /17

Atomic force microscopy (AFM) EXPLORING THE MICRO WORLD BY AN OPTICAL MICROSCOPE…  Measuring 1 nm particle by a probesimilar to… 中央研究院 Exploring Nano Space presentation /18

Atomic force microscopy (AFM) THE AFM SYSTEM  AFM Demonstration AFM Theory web version Wii teach you AFM 中央研究院 Exploring Nano Space presentation /19

Atomic force microscopy (AFM) COMPARISON OF DETECTION MECHANISMS USED IN ATOMIC FORCE MICROSCOPE (AFM) animation animation 中央研究院 Exploring Nano Space presentation /20

Atomic force microscopy (AFM) ASTIGMATIC MECHANISM OF THE ADS (像散式光學量測機制) 中央研究院 Exploring Nano Space presentation /21

Atomic force microscopy (AFM) SLIM TYPE CD/DVD OPTICAL PICKUP UNIT (OPU)   Photograph ZEMAX Model 中央研究院 Exploring Nano Space presentation /22

Atomic force microscopy (AFM) DVD HEAD BASED AFM 中央研究院 Exploring Nano Space presentation /23

Atomic force microscopy (AFM) MEASUREMENT RESULTS OF EDUCATIONAL DVD BASED AFM WITH LOW VOLTAGE PIEZOELECTRIC SCANNER   AAO sample surface 30nm height calibration sample   Mechanical part of the Educational AFM with low voltage piezoelectric scanner Nano tubes on HOPG Single atomic step of HOPG 中央研究院 Exploring Nano Space presentation /24

Atomic force microscopy (AFM) IMAGING LIVING CELL IN NANO-SCALE 中央研究院 Exploring Nano Space presentation /25

Educational AFM system MEASUREMENT RESULTS OF EDUCATIONAL DVD BASED AFM WITH LOW VOLTAGE PIEZOELECTRIC SCANNER EDU AFM in action 中央研究院 Exploring Nano Space presentation /26

that’s all, thank you!! 中央研究院 Exploring Nano Space presentation /27

Tsinghua University

Exploring Nano Space: Atomic Force Microscopy (AFM ) 原子力顯微術