- #1
bluejay27
- 68
- 3
Quantum dots fluorescence whenever UV light is applied to them. Whenever the UV light is off and visible light hits the quantum dots it posses colors but does not fluorescence. I thought light had to have energy that is equal or greater than the band gap for the quantum dots to emit light. How does emission occur if visible light does not have enough energy to excite the electrons of the quantum dots.