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1. (WO2018082204) RED-EMITTING CARBON DOT HAVING HIGH YIELD AND QUANTUM YIELD AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/082204    International Application No.:    PCT/CN2017/000665
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Nov 04 00:59:59 CET 2017
IPC: C09K 11/06
C09K 11/65
B82Y 20/00
B82Y 40/00
C01B 32/15
Applicants: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
中国矿业大学
Inventors: DING, Hui
丁辉
GAO, Qingyu
高庆宇
Title: RED-EMITTING CARBON DOT HAVING HIGH YIELD AND QUANTUM YIELD AND PREPARATION METHOD THEREFOR
Abstract:
Disclosed are a red-emitting carbon dot having a high yield and quantum yield and a preparation method therefor, which is a preparation method allowing mass synthesis of carbon quantum dots emitting in the range of red lights (peak values between 610-661 nm) and having the current highest quantum dot yield of 76%. Such carbon nanoparticles are of sizes between 2-8 nm, consist primarily of a graphitized carbon nucleus and an amorphous functional group shell, and have great light emission efficiency, solubility, and stability in common solvents. As a novel red fluorescent material, the carbon dot has the great properties of inexpensive production costs, suitability for large-scale production, extremely high light emission efficiency, and great stability, is currently the most promising low toxicity novel nanomaterial as a replacement for a conventional semiconductor quantum dot for playing a role in optoelectronic components, fluorescent sensors, and biotechnology.