Patent · US Active

Method for preparing bright near-infrared emissive carbon dots with both ultra-narrow full width at half maximum and with two-photon fluorescence

US11390801B2 · kind B2 · utility

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9Claims

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Assignee

JILIN UNIVERSITY · CN

Inventors

Bai Yang · Jilin, CN
Junjun Liu · Suzhou, CN
Kai Zhang · Shanghai, CN
Yunfeng Li · Beijing, CN

Key dates

Filing date	Sep 30, 2020
Grant date	Jul 19, 2022
Priority date	—
Expiry date	Oct 22, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2004/64
WIPO fieldMicro-structural and nano-technology
WIPO sectorChemistry

Abstract

Bright near-infrared emissive carbon dots with both ultra-narrow full width at half maximum and with two-photon fluorescence and a preparation method thereof are provided. Green leaves are used as carbon source to prepare near-infrared emissive carbon dots by one-step solvothermal method. The resulting mixture is centrifuge, filtered and dried to remove the solvent, to obtain a near-infrared carbon dots solid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.