Investigation of Raman and photoluminescence studies of reduced graphene oxide sheets

被引：1
|
作者：
Karthikeyan Krishnamoorthy
Murugan Veerapandian
Rajneesh Mohan
Sang-Jae Kim
机构：
[1] Jeju National University,Nano Materials and System Lab, Department of Mechanical Engineering
[2] Kyungwon University,College of BioNano Technology
[3] Jeju National University,Department of Mechatronics Engineering and Research Institute of Advanced Technology
来源：
Applied Physics A | 2012年 / 106卷
关键词：
Graphene Oxide; Graphene Sheet; Reduce Graphene Oxide; Expandable Graphite; Reduce Graphene Oxide Sheet;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, we are investigating the Raman and photoluminescence properties of reduced graphene oxide sheets (rGO). Moreover, graphene oxide (GO) sheets are synthesized using Hummer’s method and further reduced into graphene sheets using D-galactose. Both GO and rGO are characterized by UV-vis spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Thermogravimetric (TGA) analysis. Raman analysis of rGO shows the restoration of graphitic domains in GO after reduction. The photoluminescence of rGO showed emission in the UV region which is blue shifted along with luminescent quenching as compared to GO. This blue shift and quenching in photoluminescence arises due to the newly formed crystalline sp2 clusters in rGO which created percolation pathways between the sp2 clusters already present.
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页码：501 / 506
页数：5
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