Search International and National Patent Collections
|1. (WO2018056570) SINGLE ELECTRON-OCCUPIED QUANTUM DOTS AND METHOD FOR CONTROLLING MAGNETISM THEREOF|
|Applicants:||KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
|Inventors:||JEONG, Kwang Seob
JEONG, Ju Yeon
|Title:||SINGLE ELECTRON-OCCUPIED QUANTUM DOTS AND METHOD FOR CONTROLLING MAGNETISM THEREOF|
The present invention relates to single electron-occupied quantum dots and a method for controlling the magnetism thereof and, more specifically, to quantum dot nanoparticles comprising single electrons in the quantized energy level of a conduction band, and to a method for controlling the magnetism thereof. The method for controlling the magnetism of quantum dots according to the present invention can fill the quantized energy level in a conduction band of the quantum dot with single electrons by controlling the time for a chemical reaction of quantum dots and the ratio of metal to calcogen, and can control the magnetism of the quantum dots by adjusting the number of electrons. In addition, the quantum dots are prepared by comprising a thiol-less ligand, so that the n-type doping of quantum dots can be maintained and the ligand substitution is very easy, compared with a conventional thiol ligand.