奈米科技导论

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1、奈米科技導論國立交通大學應用化學系 裘性天Wednesday3:40 5:30 pmFriday3:40 4:30 pm03/29裘性天(應化系) Introduction04/10王崇人(中正化學系 ) Nanoparticles04/12張立(材料系) Electron Microscopy04/17楊耀文(同步輻射) Self-Assembly on Surface04/19張立(材料系) Electron Microscopy04/24趙桂蓉(清華化學系 ) Nanoporous Materials04/26趙桂蓉(清華化學系) Nanoporous Materials05/01韋光華

2、(材料系) Nano Composite Materials05/03鍾文聖(應化系) Supramolecular Chemistry05/08李耀坤(應化系) BionanotechnologyWhat is Nanotechnology?It is the creation of functional materials, devices and systems through control of matter on the nanometer length scale and exploitation of novel phenomena and properties (physic

3、al, chemical, biological) at that length scaleNanotechnology Nano-enabled TechnologyHow small is nano?M110-310-610-9 MmMmMnMNano-techICAtoms/ MoleculesSizes Under Electron MicroscopeMaterials Obtained from Nanoworld The University of Queensland Australia http:/www.uq.edu.au/nanoworld/scalemag.htmlHi

4、storical Background1959 Feynmans Lecture “There is Plenty of Room at the Bottom” http:/ BackgroundMoores Law http:/ Moore predicted in 1965 that the number of transistors per integrated circuit would double every 18 months up to 1975. Historical BackgroundEmergence of STM (scanning tunneling microsc

5、ope) and AFM (atomic force microscope) in the 1980s providing the “eyes” and “fingers” for nanoscale measurement and manipulationhttp:/www.nobel.se/physics/laureates/1986/press.htmlhttp:/ vs. Nano Manufacturing Process Traditional Macroscopic view Shrink from bulk materials Bulk properties Special f

6、ields - experts Nano Microscopic view Build up from molecules Nano scale (quantized) properties Interdisciplinary - cooperationLithographyChemical SynthesisAtom ManipulationRoom-Temperature Ultraviolet Nanowire Nanolasers SCIENCE VOL 292 8 JUNE 2001Molecular Motor http:/si.ucla.edu/people/Faculty/UC

7、LA/montemagno_ c.html http:/ Nano Science Chemistry Molecular Science Polymer Science Colloid CatalysisChemistry Transformation of Matters Making and Breaking Chemical Bonding Top-down and Bottom-up Atoms MoleculesInfinite ConnectionsFundamentals Theories Quantum Mechanics Connection Bonding? Thermo

8、dynamics Probability? Kinetics How and What?Bonding Coulomb Attraction and Repulsion among Electrons and Nuclei Strong Bonds - Sharing Electrons among Atoms evenly - localized Covalent Bond - delocalized Metallic Bond unevenly- ionic Ionic Bond Weak BondsH-Bond Dispersion Force Mechanical BondsBiopo

9、lymers: DNAInorganic Solids-MetallicCuInorganic Solids-IonicNaClInorganic Solids-CovalentSiO2Mechanical BondFundamentals Theories Quantum Mechanics Thermodynamics Probability? Kinetics How and What?KineticsThermodynamicsBasic Reactions Acid-Base A + :B AB about electron sharing Acid: electron-poorBa

10、se: electron- rich Oxidation-Reduction Am+ + Bn+A(m+1)+ + B(n-1)+ about electron transfer DisplacementPre-Nano Chemistry Polymer Polymerization Biochemistry - DNA Interface and Surface Chemistry - Colloid Science, Micelles, Crystallization, Thin Film Growth Catalysis - Metals, Oxides, Zeolites, .Sur

11、factant and MicelleColloidRepulsionCrystallizationThin Film GrowthCatalysisFoundations of Control Bonding, Thermodynamics, Kinetics Building Block Strategy Bottom-up Process Atoms/Molecules to Materials Example: CrystallizationMethods of Control Nano-reactors - micelles Template Synthesis - nanotube

12、s, rods Self Assembly and self-assembled monolayers Selective Growth - direct writing, patterned growth Supramolecular Chemistry and DendrimersNano-Reactors and Template SynthesisColloidal Nanocrystal Shape and Size Control: The Case of Cobalt Victor F. Puntes, Kannan M. Krishnan, A. Paul Alivisatos

13、 SCIENCE VOL 291 16 MARCH 2001 2115Fig. 1. Evolution of crystal structure, size, and shape with time after the injection of a solution of 0.6 g of Co2(CO)8 in 3 ml of o-dichlorobenzene into 0.1 ml of oleic acid and 0.2 g of TOPO in 12 ml of o-dichlorobenzene at 182OC. (A) XRD pattern at 15 s corresp

14、onding to a hcp-Co crystal structure. (B) TEM micrograph of the solution at 15 s; (C) 100 s; (D) 300 s; and (E) 1800 s. (F) XRD pattern at 1800 s corresponding to a e-Co crystal structure. Bar, 100 nm.Single-walled 4 carbon nanotube arrays N. Wang, Z. K. Tang, G. D. Li, J. S. Chen NATURE, VOL 408 NO

15、VEMBER 2000, 50Self-Assembled Mono LayersOTS SAM formation on a glass substrateAlkanethiol SAMs on Silver and GoldDNA hybridization based self-assembly of gold nanoparticles onto a gold substrate(1) the formation of a thiol- functionalized oligo- nucleotide SAM on a Au substrate and (2) its hybridi- zation by a complimentary thiol-functionalized oligo- nucleotide onto which Au nanoparticles had been attached by S-Au bonding.Self-Organization of Large Go

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