Facile preparation and upconversion luminescence of graphene quantum dots

被引：716

作者：

Shen, Jianhua ^{[1
]}

Zhu, Yihua ^{[1
]}

Chen, Cheng ^{[1
]}

Yang, Xiaoling ^{[1
]}

Li, Chunzhong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2011年 / 47卷 / 09期

基金：

中国国家自然科学基金;

关键词：

CARBON DOTS; NANOPARTICLES; NANOCRYSTALS; BRIGHT; ORIGIN; ROUTE;

D O I：

10.1039/c0cc04812g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile hydrazine hydrate reduction of graphene oxide (GO) with surface-passivated by a polyethylene glycol (PEG) method for the fabrication of graphene quantum dots (GQDs) with frequency upconverted emission is presented. And we speculate on the upconversion luminescence due to the anti-Stokes photoluminescence (ASPL), where the delta E between the pi and sigma orbitals is near 1.1 eV.

引用

收藏

页码：2580 / 2582

页数：3

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