Pyrolytic synthesis of carbon quantum dots, and their photoluminescence properties

被引：26

作者：

Li, Xiaomin ^{[1
]}

Chang, Jiuli ^{[1
]}

Xu, Fang ^{[1
,2
]}

Wang, Xiaorui ^{[1
]}

Lang, Yuehe ^{[1
]}

Gao, Zhiyong ^{[1
]}

Wu, Dapeng ^{[1
]}

Jiang, Kai ^{[1
,2
]}

机构：

[1] Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

[2] Collaborat Innovat Ctr Mot Power & Key Mat, Xinxiang 453007, Henan, Peoples R China

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2015年 / 41卷 / 02期

关键词：

Carbon quantum dots; Fluorescence; Pyrolysis; Upconversion; ELECTROCHEMICAL AVENUE; HYDROTHERMAL SYNTHESIS; NANOPARTICLES; CONVERSION; PROBES; IONS;

D O I：

10.1007/s11164-013-1233-x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon quantum dots (CQDs) with strong photoluminescence (PL) emission and intriguing upconversion emission property have been prepared by facile and effective pyrolysis of the salt calcium disodium ethylenediamine tetraacetate (EDTA-2Na-Ca center dot 4H(2)O) at 400 A degrees C. The relative fluorescence quantum yield of the CQDs in aqueous solution reached 66.03 %, which is the highest value yet obtained. Moreover, the CQDs also had a strong upconversion PL property on excitation at 600-750 nm. It is proposed that an anti-Stokes shift is responsible for this upconversion PL emission.

引用

页码：813 / 819

页数：7

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