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SPIE scanning microscopy
The document discusses integrating electron microscopy into nanoscience and materials engineering education to address the skills gap among new hires. It emphasizes hands-on training at the MACS facility, collaboration between NASA and educational institutions, and the importance of real-world experience in teaching nanotechnology. The facility offers various microscopy tools and training opportunities for students, fostering innovation and collaboration in research projects.
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SPIE scanning microscopy
- 1. Integrating Electron Microscopy into Nanoscience and Materials Engineering Programs SPIE Scanning Microscopy September 17, 2014
- 2. Overview • Skillsgap in new hires • Characterization curriculum • Incubating Innovation • NASA-ASL MACS lab • Socialization of Science • Instrument training • Integrated microscopy program
- 3. Problem => Solution • Skills gap in new hires • Laboratory experience • Lack of relevant materials • Curriculum development • Budget / resource constraints Boeing – SRI Study 2006/2007 NCLT - http://community.nsee.us/grg/34076.pdf
- 4. ASL Advanced StudiesLab • NASA-UCSC Collaboration • Foothill De Anza College District (Foothill and De Anza College) • NASA scientists / researchers • UCSC/SJSU/SCU, and other faculty • MACS Facility for Collaborative Science
- 5. UCSC MACS FacilityNASA-ARC ASL Collaboration of Government, Academia, and Industry today, to solve Grand Endeavors for our future tomorrow. Energy & Sustainability Astrobio, SpaceBio, SynBio Electronics (Sensors, Networks) examples: Solar Cells, Batteries, Energy harvesting examples: Transistors, Memristors, Sensors examples: Astrobiology, Biomedical devices MACS MACS Facility: Developing and analyzing new MATERIALS across traditional disciplines and establishments NASA ARC
- 6. Integrated Learning Outcomes Integrated Learning Outcomes => NSF-ATE Program for Training Nanotechnicians
- 7. Program Students •Workforce • Community College • 4yr (SJSU/UCSC) • Graduate (SJSU/UCSC) • PhD/Post Doc (UCSC) • All over the US (summer)
- 8. Instrument Training •Tabletop SEM (Foothill) • FE-SEM (MACS/ASL) • HR-TEM (MACS/ASL) • AFM demo (Foothill) • IBS / PE-CVD demonstration
- 9. Socialization of Science • Mentoring of students • Influence (social) networks • Four levels of college students • Faculty researchers • Small business innovators
- 10. Mentoring of Students • Influence (social) science networks • Multiple levels of college students • Faculty and NASA UCSC researchers • Small business innovators / PBL Students form groups around projects and work with each other in teams
- 11.
- 12. Mentor Training FoothillCollege students Anh Nguyen and Yessica Torres (now at EAG labs) participate in materials research and microscopy training at NASA-ASL using a Transmission Electron Microscope (TEM).
- 13. Hitachi S-4800 IIFE SEM with chemical analysis • Field Emission Scanning Electron Microscope with light element analysis using Oxford INCA energy dispersive spectroscopy (EDS). • 1-2 nanometer range resolution. • Dual Secondary Electron (SE) detector system comprised of a lower detector for surface topography imaging and an “in-lens” upper detector for high resolution imaging. • Backscatter electron (BSe) detector for analysis of insulating samples. • Magnification range: 20 – 800kX
- 14. Hitachi HR9500 TEM • Ultra high-resolution microscope with point-to-point resolution of 0.18 nm and a lattice resolution of 0.10 nm. • AMT XR41B - 4 Megapixel (2048x2048) high mag, high sensitivity bottom mount camera for materials science and diffraction studies. • Brüker - Quantax XFlash 5030 Silicon Drift Detector (SDD) for high performance energy dispersive X-ray spectroscopy (EDS). • Magnification: 200 – 1500kX.
- 15. Nanocarbon Projects Nanocarbonand graphene is a primary research focus within NASA-ASL. Faculty researcher and MACS director Michael Oye developed a process for depositing vertical graphene on copper. Characterization using Field Emission Scanning Electron Microscopy (FE-SEM) and Raman spectroscopy, shown at right, provided evidence for graphitic character of the material. Microscopy training in the MACS facility focuses on projects involving collaborative research, where students learn about characterization tools in the context of real science. From Sandoz-Rosado et al, JMR 2013
- 16. Nanoislands and GaNSteps Image of Nanoislands and Gallium Nitride Steps from S4800 FE-SEM
- 17. AFM Image ofNano Islands Mn on GaN 2u x 2u Amorphous region 5u x 5u AFM images from PNI Nano-R AFM using Close Contact Mode
- 18. Gold Nanoparticle TEM NASA-ASL intern David Skiver prepared gold nanoparticles using sodium citrate reduction of auric chloride. Particles are produced in a dark solution and suspended in a TEM grid. This particle was imaged at 1 million X using a Hitachi HR 9500 TEM. Students can see individual gold atoms in the particle, which is ~ 15 nm in diameter. The group is now developing an approach to nanosilver particles using silver nitrate and sodium citrate.
- 19. Saturday Microscopy Sessions High School student using the Hitachi TM-3000 Tabletop SEM
- 20. Summary • Nanoscienceand nanotechnology require real images for learning about nanostructures • Gaining real experience through hands-on activities is an effective learning approach • Access to microscopy tools can be challenging for colleges with limited budgets/partners • The NASA-ASL MACS facility provides opportunities for real microscopy training • Microscopy is also a great way to have fun!
Editor's Notes
- #6 Mike