Looking for a material that will change colors

  1. I am looking for a material that will change colors depending on how long it is in the sunlight. Any thoughts?
  2. jcsd
  3. Integral

    Integral 7,288
    Staff Emeritus
    Science Advisor
    Gold Member

    Most everything does.

    You may need to be a little more specific.
  4. Basically like a mood ring. Something that will change as quick at hourly. But the colors need to be distinct. Thoughts? Or maybe some kind of chemical?
  5. wukunlin

    wukunlin 386
    Gold Member

    You are looking for photochromic materials. Silver Chloride comes to mind. It gets darker as it is exposed to UV.
  6. Why not just track down a mood ring?
  7. Bobbywhy

    Bobbywhy 1,864
    Gold Member

    Since you want the color change to be caused by sunlight, then a mood ring would NOT be a solution. It changes color according to temperature.

    Will you please describe in more detail exactly what your proposed experiment would be? What's your objective? What do you plan to demonstrate or measure? Members here can contribute, but are not mind readers. Thank you.
  8. sophiecentaur

    sophiecentaur 14,698
    Science Advisor
    Gold Member

    How about a (living) leaf? Over a relatively long period of time, its colour will depend upon illumination.
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?

Draft saved Draft deleted