Photoluminescence and Raman studies of graphene thin films prepared by reduction of graphene oxide

被引：177

作者：

Cuong, Tran Viet ^{[1
]}

Pham, Viet Hung ^{[1
]}

Tran, Quang Trung ^{[2
]}

Hahn, Sung Hong ^{[3
]}

Chung, Jin Suk ^{[1
]}

Shin, Eun Woo ^{[1
]}

Kim, Eui Jung ^{[1
]}

机构：

[1] Univ Ulsan, Dept Chem Engn, Ulsan 680749, South Korea

[2] Ho Chi Minh City Univ Nat Sci, Fac Phys, Dept Solid State Phys, Ho Chi Minh City, Vietnam

[3] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 03期

关键词：

Graphene oxide; Thin films; Luminescence; Optical materials and properties; GRAPHITE OXIDE; FUNCTIONALIZED GRAPHENE; NANOSHEETS; CARBON;

D O I：

10.1016/j.matlet.2009.11.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoluminescence (PL) and Raman studies have been performed to investigate the optical properties of graphene thin films prepared by chemical and thermal reductions of graphene oxide (GO). The G peak in Raman spectra red-shifted after reduction of GO. Thermal reduction resulted in a more red-shift of the G peak than chemical reduction. A strong intensity of the D peak indicated that the prepared graphene films have significant structural disorders. A blue-shifted emission in PL spectra suggested that sp(2) clusters are embedded in a sp(3) matrix that acts as a tunnel barrier, causing a strong fluctuation in the local band gap. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：399 / 401

页数：3

共 12 条

[1] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[2] Room temperature photoluminescence from nanostructured amorphous carbon [J].

Henley, SJ ;

Carey, JD ;

Silva, SRP .

APPLIED PHYSICS LETTERS, 2004, 85 (25) :6236-6238

[3] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

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

[4] Atomic structure of graphene on SiO2 [J].

Ishigami, Masa ;

Chen, J. H. ;

Cullen, W. G. ;

Fuhrer, M. S. ;

Williams, E. D. .

NANO LETTERS, 2007, 7 (06) :1643-1648

[5] Raman spectra of graphite oxide and functionalized graphene sheets [J].

Kudin, Konstantin N. ;

Ozbas, Bulent ;

Schniepp, Hannes C. ;

Prud'homme, Robert K. ;

Aksay, Ilhan A. ;

Car, Roberto .

NANO LETTERS, 2008, 8 (01) :36-41

[6] Processable aqueous dispersions of graphene nanosheets [J].

Li, Dan ;

Mueller, Marc B. ;

Gilje, Scott ;

Kaner, Richard B. ;

Wallace, Gordon G. .

NATURE NANOTECHNOLOGY, 2008, 3 (02) :101-105

[7] Single sheet functionalized graphene by oxidation and thermal expansion of graphite [J].

McAllister, Michael J. ;

Li, Je-Luen ;

Adamson, Douglas H. ;

Schniepp, Hannes C. ;

Abdala, Ahmed A. ;

Liu, Jun ;

Herrera-Alonso, Margarita ;

Milius, David L. ;

Car, Roberto ;

Prud'homme, Robert K. ;

Aksay, Ilhan A. .

CHEMISTRY OF MATERIALS, 2007, 19 (18) :4396-4404

[8] Controlling the electronic structure of bilayer graphene [J].

Advanced Light Source, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, United States ;

不详 ;

不详 .

Science, 2006, 5789 (951-954) :951-954

[9] Atomic Force and Scanning Tunneling Microscopy Imaging of Graphene Nanosheets Derived from Graphite Oxide [J].

Paredes, J. I. ;

Villar-Rodil, S. ;

Solis-Fernandez, P. ;

Martinez-Alonso, A. ;

Tascon, J. M. D. .

LANGMUIR, 2009, 25 (10) :5957-5968

[10] Photoluminescence mechanism in amorphous hydrogenated carbon [J].

Robertson, J .

← 1 2 →