Search International and National Patent Collections

1. (WO2018056570) SINGLE ELECTRON-OCCUPIED QUANTUM DOTS AND METHOD FOR CONTROLLING MAGNETISM THEREOF

Pub. No.:    WO/2018/056570    International Application No.:    PCT/KR2017/008471
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Sat Aug 05 01:59:59 CEST 2017
IPC: C09K 11/89
C09K 11/54
C09K 11/08
C09K 11/62
C09K 11/64
C09K 11/66
C09K 11/59
H01L 29/12
H01L 21/02
B82Y 20/00
Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
고려대학교 산학협력단
Inventors: JEONG, Kwang Seob
정광섭
JEONG, Ju Yeon
정주연
Title: SINGLE ELECTRON-OCCUPIED QUANTUM DOTS AND METHOD FOR CONTROLLING MAGNETISM THEREOF
Abstract:
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.