Question

 

Explain the origin of fluorescence and phosphorescence spectra in terms of Jablonski diagram. What is meant by fluorescence quenching? How does it affect the quantum yield of a fluorescence emission?

22 Jan 2025
Answer :
Word Count : 253

Fluorescence and phosphorescence are types of photoluminescence, which occur when a molecule absorbs light and subsequently re-emits it. The Jablonski diagram provides a useful framework for understanding these processes by illustrating the transitions between different electronic states of a molecule.

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