SEMICONDUCTOR NANOCRYSTALS AND METHODS OF PREPARATION

摘要

A method for preparing semiconductor nanocrystals: reacting cation precursor and anion precursor in a mixture including on or more acids, phenol compounds, and a solvent to produce semiconductor nanocrystals having a predetermined composition by reacting the reaction mixture at a temperature and for a period of time. A method for forming a coating on at Ieast a portion of a population of semiconductor nanocrystals: forming a first mixture including a population of semiconductor nanocrystals, one or more amine compounds, and a first solvent; adding cation precursor and anion precursor to the first mixture, wherein the temperature of the first mixture during addition of the precursors is sufficient for growing a semiconductor material comprising the cation and anion on at Ieast a portion of an outer surface of at Ieast a portion of the population of semiconductor nanocrystals.