Simple and eco-friendly solvothermal synthesis of luminescent reduced graphene oxide small sheets

被引：16
|
作者：
Wang, Huan [1 ,2 ]
Tian, Hongwei [1 ,2 ]
Wang, Shumin [1 ,2 ]
Zheng, Weitao [1 ,2 ]
Liu, Yichun [3 ,4 ]
机构：
[1] Jilin Univ, MOE, Key Lab Mobile Mat, Dept Mat Sci, Changchun 130012, Peoples R China
[2] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
[3] NE Normal Univ, Minist Educ, Ctr Adv Optoelect Funct Mat Res, Changchun 130024, Peoples R China
[4] NE Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R China
来源：
MATERIALS LETTERS | 2012年 / 78卷
基金：
中国国家自然科学基金;
关键词：
Graphene; Sheet; Photoluminescence; QUANTUM; GRAPHITE; DOTS;
D O I：
10.1016/j.matlet.2012.03.048
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The luminescent reduced graphene oxide small sheets (average diameter: 30-50 nm) are prepared by using a simple and eco-friendly solvothermal process, and show an obvious excitation-dependent PL emission as the excitation wavelength varies from 300 to 500 nm. In particular, under excitation at 340 nm, a strongest blue emission occurs, whose quantum yield reaches ca. 3.2% as Rhodamine B is used as a reference. This offers a simple pathway to prepare the luminescent reduced graphene oxide small sheets. Furthermore, the emission exhibits a good resistance to the change of pH for the surroundings, which could be beneficial to the practical applications in the field of optoelectronics, and molecule detection. (C) 2012 Elsevier BM. All rights reserved.
引用
收藏
页码：170 / 173
页数：4
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