What is the Jablonski diagram?

A Jablonski diagram is a diagram that illustrates the electronic states of a molecule and the transitions between them. The states are arranged vertically by energy and grouped horizontally by spin multiplicity. Nonradiative transitions are indicated by squiggly arrows and radiative transitions by straight arrows. read more

A Jablonski diagram showing the excitation of molecule A to its singlet excited state (1 A*) followed by intersystem crossing to the triplet state (3 A) that relaxes to the ground state by phosphorescence. read more

The Jablonski diagram features the energy levels within a molecule where valence electrons could be excited. Light of specific wavelength interacts with an electron and causes its excitation to a higher-energy level. read more