Visualization of defect densities in reduced graphene oxide

被引：495

作者：

Eigler, Siegfried ^{[1
]}

Dotzer, Christoph

Hirsch, Andreas

机构：

[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91054 Erlangen, Germany

来源：

CARBON | 2012年 / 50卷 / 10期

基金：

欧洲研究理事会;

关键词：

GRAPHITE; REDUCTION;

D O I：

10.1016/j.carbon.2012.03.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Efficiently reducible graphene oxide (GO) was obtained, even if a high degree of functionalization is present. Graphite with few defects was used as starting material and oxidized according to Hummer's method. An extremely high I-D/I-G ratio for rGO of 2.8 (532 nm) was observed in the Raman spectrum as a consequence of the lower defect density in GO. It was also possible to demonstrate the impact of local defects on the structure in rGO by local laser exposure experiments on single graphene oxide flakes. Raman spectroscopy can visualize the laser impact by I-D/I-G ratio measurements. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3666 / 3673

页数：8

共 27 条

[11]

Englert JM, 2011, NAT CHEM, V3, P279, DOI [10.1038/NCHEM.1010, 10.1038/nchem.1010]

[12] Determination of the Local Chemical Structure of Graphene Oxide and Reduced Graphene Oxide [J].

Erickson, Kris ;

Erni, Rolf ;

Lee, Zonghoon ;

Alem, Nasim ;

Gannett, Will ;

Zettl, Alex .

ADVANCED MATERIALS, 2010, 22 (40) :4467-4472

[13] Interpretation of Raman spectra of disordered and amorphous carbon [J].

Ferrari, AC ;

Robertson, J .

PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107

[14] Hydrazine and Thermal Reduction of Graphene Oxide: Reaction Mechanisms, Product Structures, and Reaction Design [J].

Gao, Xingfa ;

Jang, Joonkyung ;

Nagase, Shigeru .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (02) :832-842

[15] Emerging Transparent Electrodes Based on Thin Films of Carbon Nanotubes, Graphene, and Metallic Nanostructures [J].

Hecht, David S. ;

Hu, Liangbing ;

Irvin, Glen .

ADVANCED MATERIALS, 2011, 23 (13) :1482-1513

[16] STUDY OF OXYGEN-CONTAINING GROUPS IN A SERIES OF GRAPHITE OXIDES - PHYSICAL AND CHEMICAL CHARACTERIZATION [J].

HONTORIALUCAS, C ;

LOPEZPEINADO, AJ ;

LOPEZGONZALEZ, JDD ;

ROJASCERVANTES, ML ;

MARTINARANDA, RM .

CARBON, 1995, 33 (11) :1585-1592

[17] Direct observation of the controlled magnetization reversal processes in Py/Al/Py asymmetric ring stacks [J].

Huang, L. ;

Schofield, M. A. ;

Zhu, Y. .

APPLIED PHYSICS LETTERS, 2009, 95 (04)

[18] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[19] Non-Covalent Chemistry of Graphene: Electronic Communication with Dendronized Perylene Bisimides [J].

Kozhemyakina, Nina V. ;

Englert, Jan M. ;

Yang, Guang ;

Spiecker, Erdmann ;

Schmidt, Cordula D. ;

Hauke, Frank ;

Hirsch, Andreas .

ADVANCED MATERIALS, 2010, 22 (48) :5483-5487

[20] Quantifying ion-induced defects and Raman relaxation length in graphene [J].

Lucchese, M. M. ;

Stavale, F. ;

Ferreira, E. H. Martins ;

Vilani, C. ;

Moutinho, M. V. O. ;

Capaz, Rodrigo B. ;

Achete, C. A. ;

Jorio, A. .

CARBON, 2010, 48 (05) :1592-1597

← 1 2 3 →