Size- and temperature-dependent photoluminescence spectra of strongly confined CsPbBr<sub>3</sub> quantum dots
Oscar Hsu-Cheng Cheng, Tian Qiao, Matthew Sheldon, Dong Hee Son
Abstract
QDs shows an opposite dependence on temperature, with weaker dependence overall. On the other hand, the PL linewidth is much more sensitive to the temperature and size of the QDs compared to II-VI QDs, indicating much stronger coupling of excitons to the vibrational degrees of freedom both in the lattice and at the surface of the QDs.
Topics & Concepts
PhotoluminescenceLaser linewidthQuantum dotExcitonMaterials sciencePerovskite (structure)LuminescenceNanocrystalCondensed matter physicsSpectral linePhotonMolecular physicsOptoelectronicsNanotechnologyPhysicsChemistryOpticsCrystallographyLaserQuantum mechanicsPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesOptical properties and cooling technologies in crystalline materials