QUANTUM DOT NANOCRYSTALS HAVING A CORE-MULTISHELL STRUCTURE AND THE USE THEREOF

摘要

PURPOSE: Quantum dot nanocrystals with core-multishell structure and the use thereof are provided to exhibit high stability of cytotoxin compared to CdTe core, and to maintain the stability in a long time. CONSTITUTION: Quantum dot nanocrystals comprise a quantum dot core containing Cd compounds, inner shell which is formed on the core and contains In compounds, and Zn compounds with a core-multishell structure which are formed on the surface of the quantum dot core-inner shell. The Cd compounds are CdS, CdSe or CdTe. The In compounds are InP or InAs. The Zn compounds are ZnS or ZnSe.