Quantum dance of excitons and phonons observed in perovskite nanocrystals
Through international collaboration, researchers at TU Dortmund University have made significant progress in understanding quantum dynamics in semiconductor materials. In perovskite nanocrystals, the scientists were able to directly observe for the first time how excitons and phonons interact coherently—a synchronized “quantum dance” between electronic excitation and lattice vibration. The results have been published in Nature Communications.
Excitons are formed in semiconductors when a photon excites an electron to an excited state, leaving behind a positively charged “hole.”