Abnormal nonlinear optical properties of hybrid graphene-TiO2 nanostructures

被引：37

作者：

Jiang, Yongqiang ^{[1
]}

Ma, Ying ^{[1
]}

Fan, Zhaoyang ^{[2
,3
]}

Wang, Peng ^{[1
]}

Li, Xiaohong ^{[1
]}

Wang, Yingwei ^{[1
]}

Zhang, Yu ^{[1
]}

Shen, Jianqiang ^{[1
]}

Wang, Gang ^{[1
]}

Yang, Zhong-Jian ^{[1
]}

Xiao, Si ^{[1
]}

Gao, Yongli ^{[1
,4
]}

He, Jun ^{[1
]}

机构：

[1] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, 932 South Lushan Rd, Changsha 410083, Hunan, Peoples R China

[2] Texas Tech Univ, Dept Elect & Comp Engn, Lubbock, TX 79409 USA

[3] Texas Tech Univ, Nano Tech Ctr, Lubbock, TX 79409 USA

[4] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

OPTICS LETTERS | 2018年 / 43卷 / 03期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

SELF-PHASE MODULATION; TIO2; MOS2; ABSORPTION; NANOCOMPOSITES; DYNAMICS;

D O I：

10.1364/OL.43.000523

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The nonlinear optical (NLO) properties of graphene-TiO2 nanoparticle (GNP) composite and graphene-TiO2 nanowire composite (GNW) are investigated by spatial self-phase modulation (SSPM) and Z-scan. The SSPM results of the GNP and GNW show that they possess strong selfdiffraction effects at 1100 nm and no signal at 700 nm, which is different from all previous reports of other twodimensional materials. A possible mechanism is that NLO behaviors are dominated by TiO2 at the visible wavelength, while by graphene at a near-infrared wavelength. The Z-scan results of the GNP andGNWshow reverse saturable absorption (RSA) at 700 nm, but saturable absorption (SA) at 1100 nm. Our results demonstrate that, by choosing appropriate coupling, we could design two-dimensional materials that have specific NLO properties at particular wavelengths. (C) 2018 Optical Society of America

引用

页码：523 / 526

页数：4

共 35 条

[1]

[Anonymous], ACTA PHYS SIN

[2]

[Anonymous], J MAT CHEM A

[3] Spin-dependent transport properties of hetero-junction based on zigzag graphene nanoribbons with edge hydrogenation and oxidation [J].

Cui, Li-ling ;

Long, Meng-qiu ;

Zhang, Xiao-jiao ;

Li, Xin-mei ;

Zhang, Dan ;

Yang, Bing-chu .

PHYSICS LETTERS A, 2016, 380 (5-6) :730-738

[4] Band gap tuning and nonlinear optical characterization of TiO2-SiO2 nanocomposites with respect to composition and phase [J].

Divya, S. ;

Sebastian, Indu ;

Nampoori, V. P. N. ;

Radhakrishnan, P. ;

Mujeeb, A. .

OPTICAL MATERIALS, 2014, 37 :433-438

[5] Mixed two- and three-photon absorption in bulk rutile (TiO2) around 800 nm [J].

Evans, Christopher C. ;

Bradley, Jonathan D. B. ;

Marti-Panameno, Erwin A. ;

Mazur, Eric .

OPTICS EXPRESS, 2012, 20 (03) :3118-3128

[6] Visible light active Fe doped TiO2 nanowires grown on graphene using supercritical CO2 [J].

Farhangi, Nasrin ;

Chowdhury, Rajib Roy ;

Medina-Gonzalez, Yaocihuatl ;

Ray, Madhumita B. ;

Charpentier, Paul A. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 110 :25-32

[7] Giant nonlinear optical response of nanoporous anatase layers [J].

Gayvoronsky, V ;

Galas, A ;

Shepelyavyy, E ;

Dittrich, T ;

Timoshenko, VY ;

Nepijko, SA ;

Brodyn, MS ;

Koch, F .

APPLIED PHYSICS B-LASERS AND OPTICS, 2005, 80 (01) :97-100

[8] Enhanced performance of multilayer MoS2 transistor employing a polymer capping layer [J].

Guo, Junjie ;

Jiang, Jie ;

Zheng, Zhouming ;

Yang, Bingchu .

ORGANIC ELECTRONICS, 2017, 40 :75-78

[9] Luminescence tuning and enhanced nonlinear optical properties of nanocomposites of ZnO-TiO2 [J].

Irimpan, Litty ;

Krishnan, Bindu ;

Nampoori, V. P. N. ;

Radhakrishnan, P. .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2008, 324 (1-2) :99-104

[10] Enhanced Photocatalytic Activity and Electron Transfer Mechanisms of Graphene/TiO2 with Exposed {001} Facets [J].

Jiang, Baojiang ;

Tian, Chungui ;

Pan, Qingjiang ;

Jiang, Zheng ;

Wang, Jian-Qiang ;

Yan, Wensheng ;

Fu, Honggang .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (48) :23718-23725

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