Multiphoton Excited SingletTriplet Mixed Self-Trapped Exciton emission荧光

Multiphoton excited singlet/triplet mixed self-trapped exciton (STX) emission fluorescence refers to the emission of light from an excited state of an STX molecule. An STX is a type of molecule that can undergo self-trapping, which means that the electron cloud around the molecule becomes distorted and localized. This results in the formation of an excited state that can emit light when it relaxes to the ground state.

When the STX is excited by the absorption of multiple photons, it can form a singlet or triplet excited state. The singlet state is a higher energy state that emits light quickly, while the triplet state is a lower energy state that emits light more slowly. The emission from the singlet and triplet states can mix together to create a mixed emission.

The emission from the mixed singlet/triplet STX can be used for various applications, such as in organic light-emitting diodes (OLEDs) and as fluorescent probes in biological imaging. The emission wavelength and intensity can be tuned by adjusting the excitation wavelength, the nature of the STX molecule, and the surrounding environment.

Overall, the multiphoton excited singlet/triplet mixed STX emission fluorescence is a unique phenomenon that has promising applications in various fields