单分子测控及动力学研究从STM到纳米孔.pptx

陆兴华 中国科学院物理研究所 南开大学 2016/07/06;提纲 （1）量子隧穿与STM （2）STM技术新发展 （3）纳米孔DNA测序;经典力学;量子力学;电子隧穿;;STM: Scanning Tunneling Microscope;;;Quantum Corral，IBM;Chemical Modification;Case study：C60;2.5V;1;C60 / Au(111);;STM：Manipulate Molecular States;Physics: Jahn-Teller Effect;;Break chemical bond;Enhanced IETS at the broken bond;STM: A powerful tool with Limitations;提纲 （1）量子隧穿与STM （2）STM技术新发展 （3）纳米孔DNA测序;1999, Nobel prize for ultrafast laser spectrum Ahmed Zewail, CIT ;Quantum Corral，IBM;;空间分辨率仍有待进一步改进。;;自旋分辨技术: Spin-polarized STM;Spin Polarized Tip;Basic Theory;Spin detection;Magnetization dynamics and spin transport;Electron Spin Resonance STM;;深紫外激光原位时间分辨隧道电子谱仪;仪器研制：Spin-STM ;提纲 （1）量子隧穿与STM （2）STM技术新发展 （3）纳米孔DNA测序;;目前的DNA测序方法;纳米孔：快速单个DNA测序;What is a Nanopore? A small hole that allows DNA translocatoin, typically less than 10 nm in diameter. ;Nanopore for DNA sequencing;Key factors for nanopore DNA sequencing;Bio- v.s. solid-state nanopore;Solid-state nanopore;SiN nanopore;Ultra-thin nanopore;Ultra-thin Nanopore ;Spatial resolution = ultra-thin + ultra-small;DNA translocation through nanopore;DNA Translocation;Control DNA translocation;Control DNA translocation;Control DNA translocation: Ping-Pang DNA;仪器研制：Nanopore for DNA sequencing ;Control DNA translocation: Next;Control DNA translocation: Next;Control DNA translocation: Next;Towards DNA sequencing;Base-sensitive signal detection: tunneling current;Nanopore Device for Next Generation;;S. Nie, S.R. Emory, Science 275, 1102 (1997). ;回顾与展望;1999, Nanopore ;欢迎大家来物理所参观访问！;