Subject 2 Characterizing nano-micro structures

Subject 2 Characterizing nano-micro structures - Week(2...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Week (2 meetings/wk) Contents (wk starting 1/25) Introduction ; Characterizing nanoscale structures (2/1) Processing I : how small features are made; Microfabrication, IC and IC compatible: lithography, deposition, etc. Thermodynamics : effects of small systems, surface energy and curvature, Laplace pressure, melting point depression. (2/8) Kinetics , surface diffusion, surface smoothing, sintering. Mechanical properties of nanostructured materials. (2/15) Nanoporous materials : Au fuel cell and catalysis (Erlebacher); Nanoscale reactive multilayers ; (2/22) Processing II : how the micro/nano structures are made; Nanoparticles ; Self-assembly, functionalized nanostructures, etc. (Searson) (3/1) Electronic properties and devices : scattering, transport, mobility, mean free path, quantum confinement (dots and wells), tunneling, ballistic transport, single-electron transport (3/8) Bio nanosystems & properties(Mao); Nano in fluids (Cammarata) (3/15) Spring vacation (3/22) Nanostructures and devices for optical properties (3/29) Magnetic nanostructures/properties (4/5) Student project presentations start (4/12) Student project presentations (4/19) Student project presentations (4/26) Student project presentations
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Subject 2 Structure
Image of page 2
See small things: electron microscopy Problems with optical microscopy Limited resolving power, the ability to separate 2 pts in space Resolution limit ~0.33 μ m for visible light 0 0.61 sin g n a λ = Useful magnification for eye 0.2 mm/0.33 μ m = 600 Limited depth of field (focus); cannot image rough surface
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Use electron waves…… Wave/particle duality For 20 keV e-, λ <0.1 nm 0 h meV λ Useful magnification 0.2 mm/0.1 nm = 2 million
Image of page 4
Scanning Electron Microscope 0 Scan generator controls simultaneous scan;
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern