In case of QD film, FRET phenomenon occur , Donor QD transfer energy to acceptor QD molecule. How that transferred energy is utilized by the acceptor molecule? is there any quantitative relation or equation which can tell us the utilization of that energy by the acceptor molecule?
When energy is transferred from the donor to the acceptor molecule, the acceptor molecule generally absorbs the energy and then re-emits it as fluorescence. The energy can either be released via fluorescence emission (which is typically lower in energy, i.e., longer wavelength, than the donor emission), or it can be used in photochemical processes, depending on the specific system in use
Thank you so much for your response. I want to know is there any equation or formula to find out this energy utilization?
You may want to check this work Article Paths to Förster resonance energy transfer (FRET) theory
especially subsection 6.2.
FRET is one of the many ways to put energy in the electronic states of a molecule. Because the excitation stays in the singlet excited state for more than 1 ps, the phase of the state is lost due to collisions with the solvent. The phase is lost as well as the memory of history of the excited state. It will then reacts in the same way than a usual photon excited excited state.
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