Cu<sup>+</sup> → Mn<sup>2+</sup> Energy Transfer in Cu, Mn Coalloyed Cs<sub>3</sub>ZnCl<sub>5</sub> Colloidal Nanocrystals
Ying Liu, Matteo L. Zaffalon, Juliette Zito, Francesca Cova, Fabrizio Moro, M. Fanciulli, Dongxu Zhu, Stefano Toso, Zhiguo Xia, Ivan Infante, Luca De Trizio, Sergio Brovelli, Liberato Manna
Abstract
NCs. The efficiency of this ET process reaches a value of 61% for the sample with the highest extent of Mn alloying. The PL quantum yield (QY) values in these Cu, Mn coalloyed NCs are lower at higher Mn contents. The analysis of the Mn PL dynamics in these samples indicates that this PL drop stems from inter-Mn exciton migration, which increases the likelihood of trapping in defect sites, in agreement with previous studies.
Topics & Concepts
PhotoluminescenceBand gapMaterials scienceNanocrystalAnalytical Chemistry (journal)Electron paramagnetic resonanceX-ray photoelectron spectroscopyCrystallographyColloidChemistryPhysical chemistryNanotechnologyNuclear magnetic resonanceOptoelectronicsPhysicsChromatographyPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesLuminescence Properties of Advanced Materials