Multiphoton Excited SingletTriplet Mixed Self-Trapped Exciton emission文献阅读

Multiphoton Excited Singlet/Triplet Mixed Self-Trapped Exciton Emission is a research paper published in the Journal of Physical Chemistry Letters by a group of researchers from the University of Science and Technology of China. The paper discusses the properties of self-trapped excitons that are excited by multiple photons.

Self-trapped excitons are localized excitations that occur when an electron and a hole are trapped by the lattice vibrations in a crystal. These excitons have unique optical and electronic properties that make them useful for a variety of applications, including solar cells, light-emitting diodes, and quantum computing.

The researchers in this study used a combination of experimental and theoretical methods to investigate the emission properties of self-trapped excitons that are excited by multiple photons. They found that these excitons emit light in a mixed singlet/triplet state, which is a unique property that has not been observed before.

The researchers also found that the emission properties of these excitons depend on the crystal structure and the excitation energy. They propose that the singlet/triplet mixed emission arises from the interplay between the electron-phonon coupling and the spin-orbit coupling in the crystal.

Overall, the study provides important insights into the fundamental properties of self-trapped excitons and their potential applications in optoelectronics. The results could also pave the way for the development of new materials with enhanced optical properties