Phase transition and rapid temperature response of lead-free perovskite Cs–Cu–I nanocrystals enabled by their size
Jie Chen, Yu Li, Zhe Yin, Shuaibing Wang, Lin Ouyang, Wentao Niu, Feng Teng, Aiwei Tang
Abstract
Reducing the amount of Cs-oleate can reduce the size of Cs 3 Cu 2 I 5 lead-free perovskite nanocrystals from 22 to 10 nm. The as-obtained nanocrystals show a more uniform size distribution and a more rapid response to temperature change of only 15 s.
Topics & Concepts
NanocrystalMaterials sciencePerovskite (structure)Lead (geology)Phase transitionPhase (matter)NanotechnologyChemical engineeringCondensed matter physicsChemistryGeologyEngineeringPhysicsGeomorphologyOrganic chemistryPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesSolid-state spectroscopy and crystallography