Physical Sciences

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Why Go Nano?

In the collection of chemical species, particularly those of toxic natures, high sensitivity is key to abstracting all harmful materials. To achieve high sensitivity, scientists are making smaller materials, such as nanoparticles, which yield higher surface areas. The application of these materials, however, poses many challenges.

In the following lesson, students will investigate the pros and cons of going smaller in size.

The proposed lesson plan addresses the inquiry process strands and is intended for 8th grade or higher level courses.

Warming up or cooling down

Safety
1. Nitrile or Latex gloves should be worn
a. Chemicals are not highly toxic, but must be treated with respect
2. Goggles should be worn
3. Aprons are optional

Time
• One 70-minute class
o Depending on the amount of student led exploration allowed, can be extended to two classes

Color, Contrast and Clarity: Exploring the Next Generation of Flexible Color Displays

Objective
This lesson can be completed in one or two days. It seeks to introduce and reinforce fundamental concepts in light and energy, as well as expose students to rapidly evolving technology and new engineering challenges. Students will use basic color theory and fluorescent dyes to simulate organic light emitting diode (O-LED) based flexible displays.

Accompanying Documents
1. Supplemental PowerPoint presentation containing
a. Slide on “how we see”
b. Spectrum recording template
c. Display colors for observing
d. Lab questions & answers
e. Follow up assignment

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