Patent ID: 9570549
Date: 2017-02-14
CPC Classifications: B82Y,C09K,H01L,Y10S

Claim:
1. A semiconductor nanocrystal, comprising: a bare semiconductor nanocrystal comprising a core-shell structure, an organic ligand bound to the bare semiconductor nanocrystal, and a water molecule directly bound to the bare semiconductor nanocrystal by mixing the bare semiconductor nanocrystal and water, wherein the mixing comprises: preparing a semiconductor nanocrystal solution comprising an organic solvent and the bare semiconductor nanocrystal having the organic ligand bound thereto and adding the water to the semiconductor nanocrystal solution, wherein the shell comprises a Group II-VI semiconductor material, a Group III-V semiconductor material, or a Group IV-VI semiconductor material, wherein the organic ligand comprises a mercapto spacer thiol or a compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, wherein the mercapto spacer thiol is selected from mercapto methyl thiol, mercapto ethyl thiol, mercapto propyl thiol, mercapto butyl thiol, and mercapto pentyl thiol, wherein one or more functional groups of —OH, —O, or —H are further bound to the bare semiconductor nanocrystal, the core of the bare semiconductor nanocrystal comprises the Group III-V semiconductor material, and wherein the semiconductor nanocrystal has a luminous efficiency of about 50% or more.