/diy/ - Do It Yourself

>>681446
No. In order to get the Phosphorescence effect you need to have the electron in a high excited state (about the same excitation energy as visible light). Normally objects absorb light and emit it back out very fast. But for some materials there is a state below the excited state and above the ground state that can have a long lifetime. This means it takes longer to emit the light. In order to get to this state between the excited and ground the electron has to lose energy (small amount of heat).

So you can't get a Phosphorescence effect from low temperature heat for 2 reasons i can think of:
1. the amount of heat required would melt or breakdown the material (temp of the sun).
2. the light radiation of low heat is less than visible light and therefore can't fall back down to the ground state by releasing a photon of visible light energy.

basically your input is too low of energy to get a output of visible energy

If someone knew of such a thing it would probably be top secret IR cameras for the military.