Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Nise 2008 Presentation

730 views

Published on

Presentation from my 2008 Summer Research Experience:

Published in: Business, Technology
  • Be the first to comment

Nise 2008 Presentation

  1. 1. Materials for Natural Energy Capture: Thermoelectricity on TiO 2 Surfaces By Jessica Wukitsch and Raleigh Booze
  2. 2. Goals <ul><li>To immerse ourselves in engineering approaches to education </li></ul><ul><li>To seek alternative forms of energy, not only in theory, but in application </li></ul><ul><li>To build relationships with fellow educators and researchers </li></ul><ul><li>To enhance our curriculum through hands-on learning experiences applicable to our classroom </li></ul>
  3. 3. Our Project <ul><li>Creating a nano-particle thin film to be used to conduct electricity and it’s application in the development of solar cells </li></ul><ul><ul><li>TiO2 </li></ul></ul><ul><ul><ul><li>TiO2 is abundant and relatively inexpensive </li></ul></ul></ul><ul><ul><ul><li>TiO2 is acts as a conductor in nanoparticle form </li></ul></ul></ul><ul><ul><ul><li>Can be used as a thinfilm for solar cells </li></ul></ul></ul><ul><ul><li>Nanoparticles </li></ul></ul><ul><ul><ul><li>Very small particles on the order of 1-100 nm </li></ul></ul></ul><ul><ul><ul><li>large surface area to volume ratio </li></ul></ul></ul><ul><ul><ul><li>Can be doped with other materials in order to increase the efficiency of solar energy collection </li></ul></ul></ul>
  4. 4. Our Technique <ul><li>Sputtering </li></ul><ul><ul><li>Heating Argon gas to 600˚C in order to create a plasma </li></ul></ul><ul><ul><li>Firing high energy ions from a plasma onto a substrate </li></ul></ul><ul><ul><li>Ions are fired at shutter for half an hour (presputtering) </li></ul></ul><ul><ul><li>Shutter is removed and nanoparticles are deposited as a thin film onto substrate over the period of 2 hours </li></ul></ul><ul><ul><li>Sample is removed and ready for analysis </li></ul></ul>
  5. 5. Data Analysis <ul><li>X-ray Photon Spectroscopy (XPS) </li></ul><ul><ul><li>Uses a combination of X-Ray technology and computers to measure the elemental composition, empirical formula and chemical state of the elements that exist within a material </li></ul></ul><ul><li>X-ray Diffraction (XRD) </li></ul><ul><ul><li>An X-ray is used to measure intensity versus the angle of diffraction of a sample </li></ul></ul><ul><ul><li>A program is then used to analyze the peaks of the graph from the data to determine which elements are present in a sample and the intensity in which they are found </li></ul></ul><ul><li>Testing Conductivity </li></ul><ul><ul><li>The conductivity of a sample is measured by the amount of current that is run through the sample versus the resistance </li></ul></ul>
  6. 6. Curriculum Enhancement <ul><li>Lesson Plan Ideas </li></ul><ul><ul><li>Sol Gel synthesis as a lab </li></ul></ul><ul><ul><li>Solar generated hydrogen powered cars demonstration </li></ul></ul><ul><li>Integrating engineering math and science in the classroom </li></ul><ul><ul><li>Have students create their own solar powered machine (propose to students as energy problem, give them required materials and allow them to construct their own plan) </li></ul></ul><ul><li>Future Prospects </li></ul><ul><ul><li>Field trips to an engineering lab, or solar energy plant </li></ul></ul><ul><ul><li>Classroom visits by professors to show vacuum demonstrations </li></ul></ul><ul><ul><li>Limit the amount of paper usage in the classroom through technology tools (Google groups, Jing, Blogs, Diigo, etc.) </li></ul></ul>

×