Heterogeneous Fluorescence Intermittency in Single Layer Reduced Graphene Oxide

被引：11

作者：

Si, Jixin ^{[1
]}

Volkan-Kacso, Sandor ^{[3
]}

Eltom, Ahmed ^{[2
]}

Morozov, Yurii ^{[2
]}

McDonald, Matthew P. ^{[2
]}

Kuno, Masaru ^{[2
]}

Janko, Boldizsar ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA

[3] CALTECH, Noyes Lab Chem Phys, Pasadena, CA 91125 USA

来源：

NANO LETTERS | 2015年 / 15卷 / 07期

关键词：

fluorescence intermittency; graphene oxide; heterogeneity; MRC model; BLINKING; PHOTOLUMINESCENCE; REDUCTION; NOISE;

D O I：

10.1021/acs.nanolett.5b00191

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We provide, for the first time, direct experimental evidence for heterogeneous blinking in reduced graphene oxide (rGO) during photolysis. The spatially resolved intermittency originates from regions within individual rGO sheets and shows 1/Pike power spectral density. We describe the evolution of rGO blinking using the multiple recombination center (MRC) model that captures common features of nanoscale blinking. Our results illustrate the universal nature of blinking and suggest a common microscopic origin for the effect.

引用

收藏

页码：4317 / 4321

页数：5

相关论文

共 27 条

[1]

Bradac C, 2010, NAT NANOTECHNOL, V5, P345, DOI [10.1038/nnano.2010.56, 10.1038/NNANO.2010.56]

[2] Tunable Photoluminescence from Graphene Oxide [J].

Chien, Chih-Tao ;

Li, Shao-Sian ;

Lai, Wei-Jung ;

Yeh, Yun-Chieh ;

Chen, Hsin-An ;

Chen, I-Shen ;

Chen, Li-Chyong ;

Chen, Kuei-Hsien ;

Nemoto, Takashi ;

Isoda, Seiji ;

Chen, Mingwei ;

Fujita, Takeshi ;

Eda, Goki ;

Yamaguchi, Hisato ;

Chhowalla, Manish ;

Chen, Chun-Wei .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (27) :6662-6666

[3] Facts and Artifacts in the Blinking Statistics of Semiconductor Nanocrystals [J].

Crouch, Catherine H. ;

Sauter, Orion ;

Wu, Xiaohua ;

Purcell, Robert ;

Querner, Claudia ;

Drndic, Marija ;

Pelton, Matthew .

NANO LETTERS, 2010, 10 (05) :1692-1698

[4] Single-Particle Fluorescence Intensity Fluctuations of Carbon Nanodots [J].

Das, Somes K. ;

Liu, Yiyang ;

Yeom, Sinhea ;

Kim, Doo Young ;

Richards, Christopher I. .

NANO LETTERS, 2014, 14 (02) :620-625

[5] 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

[6] Ultrafast Spectral Migration of Photoluminescence in Graphene Oxide [J].

Exarhos, Annemarie L. ;

Turk, Michael E. ;

Kikkawa, James M. .

NANO LETTERS, 2013, 13 (02) :344-349

[7] Universal emission intermittency in quantum dots, nanorods and nanowires [J].

Frantsuzov, Pavel ;

Kuno, Masaru ;

Janko, Boldizsar ;

Marcus, Rudolph A. .

NATURE PHYSICS, 2008, 4 (07) :519-522

[8] Universality of the Fluorescence Intermittency in Nanoscale Systems: Experiment and Theory [J].

Frantsuzov, Pavel A. ;

Volkan-Kacso, Sandor ;

Janko, Boldizsar .

NANO LETTERS, 2013, 13 (02) :402-408

[9] Model of Fluorescence Intermittency of Single Colloidal Semiconductor Quantum Dots Using Multiple Recombination Centers [J].

Frantsuzov, Pavel A. ;

Volkan-Kacso, Sandor ;

Janko, Boldizsar .

PHYSICAL REVIEW LETTERS, 2009, 103 (20)

[10] Quasi-Molecular Fluorescence from Graphene Oxide [J].

Galande, Charudatta ;

Mohite, Aditya D. ;

Naumov, Anton V. ;

Gao, Wei ;

Ci, Lijie ;

Ajayan, Anakha ;

Gao, Hui ;

Srivastava, Anchal ;

Weisman, R. Bruce ;

Ajayan, Pulickel M. .

SCIENTIFIC REPORTS, 2011, 1