Preparation, characterization, and nonlinear optical properties of graphene oxide thin film doped with low chirality metallic SWCNTs

被引：27

作者：

Abozied, Asmaa M. ^{[1
,2
]}

Mostafa, Ayman M. ^{[1
,2
,3
]}

Abouelsayed, A. ^{[1
,4
]}

Hassan, A. F. ^{[5
]}

Ramadan, A. A. ^{[5
]}

Al-Ashkar, Emad A. ^{[1
,3
]}

Anis, Badawi ^{[1
,2
]}

机构：

[1] Natl Res Ctr, Spect Dept, Phys Div, 33 El Bohouth St,PO 12622, Giza, Egypt

[2] Natl Res Ctr, Mol & Fluorescence Lab, Cent Labs Network, 33 El Bohouth St, Giza 12622, Egypt

[3] Natl Res Ctr, Laser Technol Unit, Ctr Excellent Adv Sci, 33 El Bohouth Str,PO 12622, Giza, Egypt

[4] Obour High Inst Engn & Technol, 31KM Misr Ismailia Rd, Cairo, Egypt

[5] Helwan Univ, Fac Sci, Dept Phys, Cairo 11798, Egypt

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2021年 / 12卷

关键词：

Graphene oxide; Low chirality metallic-SWCNTs; NLO; Thin film; Z-scan; CARBON NANOTUBES; ABSORPTION; DISPERSION; POWER; RESPONSES; POLYMER;

D O I：

10.1016/j.jmrt.2021.03.089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present non-linear optical properties of graphene oxide (GO) doped with low chirality metallic single walled carbon nanotubes (m-SWCNTs) thin films. The weight percentage of the m-SWCNTs was 5, 10, and 20 wt%. High-resolution transmission electron microscope (HRTEM), high resolution scanning electron microscope (HRSEM), Raman, and UV-vis spectroscopy were used to characterize the prepared samples. We have investigated their nonlinear optical properties using open and closed Z-scan technique at Nd:YAG laser at 1064 nm laser pulses (7 ns, 10 Hz). The nonlinear absorption coefficient beta, nonlinear refractive index n(2), and third order nonlinear susceptibility chi(3) were calculated. The results show that all samples exhibit reverse saturable absorption (RSA) because of increasing metallicity and/or partial reduction of GO during laser illumination. The nonlinearity response of the GO/m-SWCNT films increase as the m-SWCNTs percentage increases. The high non-linear optical parameters of the GO/m-SWCNTs films make them as superior candidates for near-infrared (NIR) laser protection applications. (C) 2021 The Author(s). Published by Elsevier B.V.

引用

页码：1461 / 1472

页数：12

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